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個人おすすめWordPress用レンタルサーバー21社比較と選び方
公開: 2025.08.26
更新: 2025.08.26
WordPressでウェブサイトやブログを始めるにあたり、最適なレンタルサーバーを選ぶための知識と具体的な選択肢を網羅的に解説します。サーバーの基本的な仕組みから、あなたの目的やスキルレベルに合った具体的なサーバーの選び方まで、順を追って理解を深めていきましょう。
個人おすすめWordPress用レンタルサーバー21社比較表
- Based on market research as of November 4, 2025, sorted by speed
- 月額料金は、WordPressが使える最安値プランの契約初年度の費用
- 速度は、同条件デモサイトの初回バイト応答時間（TTFB）の数値
【2025年最新版】WordPressおすすめレンタルサーバー21社徹底比較
ここからは、具体的なレンタルサーバーを「高性能・高速度」「コストパフォーマンス」「特化型・専門性」「格安・エントリー」の4つのカテゴリに分けて紹介します。
高性能・高速度重視のプレミアムサーバー4選
サイトの表示速度と安定性を最優先する方向けのサーバーです。
エックスサーバー：国内シェアNo.1の安定性と高速性
This is a proven and highly reliable hosting service used by more websites in Japan than any other. It features fast server specs, stable uptime, and a strong support system, and it is trusted by everyone from individuals to corporations.
Hikaru Ono
In terms of performance, quality, and reliability, everything is high level. And yet Xserver is still reasonably priced. If I had to compare it to a car, it feels like a Toyota Camry.
XServer Review [2025 Latest]: Thoroughly Explained Speed, Pricing, Pros, and Cons
XServer Review [2025 Latest]: Thoroughly Explained Speed, Pricing, Pros, and Cons
serverfield.org
Hostinger: the True King of Cost Performance
Hikaru Ono
When you need the final answer to a speed problem, that answer is Kinsta.
【Hostinger】 is a major hosting provider that started in Lithuania and now serves more than 29 million users across 178 countries worldwide.Its biggest strength is that it combines some of the lowest prices in the industry with an ultra-fast TTFB of 31 ms.
Hostinger's shared hosting plans start at about 200 yen per month for Single Web Hosting. The higher Premium Web Hosting plan, which costs about 500 yen per month, includes unlimited websites, 100 GB of SSD storage, and unlimited bandwidth. Every plan includes a free SSL certificate, weekly automated backups, and 24/7 customer support.
Hostinger uses its custom-built hPanel control panel, which is intuitive and easy to operate. By using data centers in the Asia-Pacific region, it can also deliver good performance from Japan. It also offers a strong automatic WordPress installation flow, letting you launch a site in just a few minutes.
Hostingerの共用ホスティングプランは、月額約200円（シングルWebホスティング）から利用可能です。上位プランのプレミアムWebホスティング（月額約500円）では、無制限のウェブサイト数、100GBのSSDストレージ、無制限の帯域幅を提供します。すべてのプランで無料SSL証明書、週次自動バックアップ、24/7カスタマーサポートが含まれています。
Hikaru Ono
What impressed me most was how easy hPanel was to use despite being feature-rich. Because the management interface is available in Japanese, you can use it without worrying about English.
Hostingerは、コストを重視する個人ブロガーや小規模ビジネスに最適です。一方、高度なカスタマイズや企業レベルのサポートを求める場合は、より上位のサービスを検討することをお勧めします。
[No. 7] XServer: the proven performance behind Japan's largest market share
It is well known for fast display speed, including its use of the LiteSpeed web server. Its easy-to-use control panel, no setup fee, and the WING Pack, which gives you up to two domains free forever, also make it highly cost-effective.
ConoHa WING：最新技術で実現する圧倒的な表示速度
Hikaru Ono
This site is also run on ConoHa WING.
ConoHa WING Review: Testing the speed, pros, and cons behind why 750,000 users choose it
ConoHa WING Review: Testing the speed, pros, and cons behind why 750,000 users choose it
serverfield.org
Webサーバーに「LiteSpeed」を採用するなど、表示速度の速さに定評があります。管理画面の使いやすさや、初期費用無料、独自ドメインが最大2つまで永久無料になる「WINGパック」など、コストパフォーマンスの高さも魅力です。
記事制作AIツール「ConoHa Pencil」や画像AI生成ツール「AI Canvas」を使えば、
Because it uses cloud technology, it can be operated stably without being heavily affected by other users. It was one of the first in Japan to adopt the LiteSpeed web server, and it is also well known for strong display speed. With a 30-day money-back guarantee, it is easy to try.
mixhost Review [2025 Latest]: A Thorough Breakdown of a Fast Server with Global Reach and Excellent Security
mixhost Review [2025 Latest]: A Thorough Breakdown of a Fast Server with Global Reach and Excellent Security
serverfield.org
Shin Rental Server: How Strong Xserver's New Brand Really Is
Shin Rental Server is ShinCloud Co., Ltd.'s high-speed rental server. Its affordable pricing makes it appealing even for individual users. On top of that, it runs regular campaigns, so the best time to sign up is while a campaign is active.
| Server type | Shared hosting |
| Response speed (TTFB) | 200ms |
| Recommended plan and term | Basic, 12 months |
| Trial / free period | 10-day free trial |
| Monthly price (12-month contract) | 880 yen |
| Initial setup fee | Free |
| Free domain | One free forever |
| Support | Phone and email (weekdays 10:00-18:00) |
| Uptime | Not disclosed |
| Storage | 700GB |
| Number of databases | Unlimited |
| Security measures | SECOM security diagnostics, WAF, ads.txt, login attempt limits, restrictions on access from overseas IP addresses, bulk comment and trackback limits, restrictions on comments and trackbacks from overseas IP addresses, antivirus, spam filter |
| SSL | Free dedicated SSL, optional dedicated SSL |
| Backup / restore | 14 days of automatic backups for free, free restore |
| Number of email accounts | Unlimited |
| Email security | POP over SSL, SMTP over SSL, IMAP over SSL, DKIM, DMARC |
| Server / website migration service | None |
| WordPress preinstalled | Yes |
| CDN | None |
Based on the system that powers Xserver, it actively adopts the latest technology. It is an up-and-coming hosting service that delivers high performance while staying cheaper than Xserver, which is why it has attracted users who care about cost performance.
シンレンタルサーバー：エックスサーバーの新ブランドの実力
These servers offer a good balance of speed, features, and price, and can handle a wide range of needs.
Lolipop!: How This Long-Established Beginner-Friendly Server Has Evolved
"wpX Speed" is a cloud-based hosting service from ShinCloud. Its pay-as-you-go system starts at 2.2 yen per hour, so it is easy to begin with. Features such as reserved resources and automatic scale-up keep performance comfortable in a very cloud-like way.
14-day free trial
LOLIPOP is a long-established server with many years of operating experience. In recent years, performance has improved dramatically through plans like High Speed, and it provides enough specs at an affordable price. Its clear control panel and manuals also make it easy for first-time server users to handle.
Hikaru Ono
The first WordPress blog I ever built was on LOLIPOP. I chose it for the cost because I thought it would be a waste to rent an expensive server and then fail to keep blogging.
ロリポップ：初心者に優しい老舗サーバーの進化
Star Rental Server: Netowl's High-Value Server
[No. 4] Lolipop!: a fast host with outstanding value
It is provided by a company related to Xserver and Shin Rental Server, and it delivers stable quality at a low price. With free SSL, SSD storage, and other essential features, it is a server with excellent cost performance.
ロリポップ！評判は？【2025最新レビュー】速度検証で判明した結果とメリットデメリット
ロリポップ！評判は？【2025最新レビュー】速度検証で判明した結果とメリットデメリット
serverfield.org
スターレンタルサーバー：ネットオウルの高コスパサーバー
“ColorfulBox” is a hosting service with excellent region-specific automatic backups, making it easy to use with confidence. It has eight plans, so you can use the right level of performance without wasting money. It is also one of the few hosts that provides support 24 hours a day.
Up to 50% off server fees until August 31, 2025, plus up to a 10,000-yen Amazon gift card and a 30-day free trial
| サーバーの種類 | 共用サーバー |
| 表示速度（TTFB） | 90ms |
| おすすめプランと契約期間 | フリー |
| お試し・返金保証 | なし |
| 月額料金（12ヶ月契約） | 無料 |
| 初期事務手数料 | 無料 |
| 無料ドメイン | なし |
| サポート | なし |
| 稼働率 | 非公開 電話（24時間受付）, callback (BOX7 and above), chat, LINE, and email |
| サーバー容量 | 3GB |
| データベース数 | 5個 |
| セキュリティ対策 | WAF、ログイン試行回数制限、国外IPアドレスからのアクセス制限、大量コメント・トラックバック制限、国IPアドレスからのコメント・トラックバック制限 |
| SSL | WAF, IPS, IDS, virus scanning, SiteLock (paid) |
| バックアップ/復元 | なし |
| メールアカウント作成数 | 14 days of region-based automatic backups included; restores are free |
| メールセキュリティ対策 | アンチウイルス、スパムフィルター、POP over SSL、SMTP over SSL、IMAP over SSL、DKIM、DMARC |
| サーバー/Webサイト移行代行 | なし |
| WordPressプリインストール | Yes |
| CDN | なし |
| CDN | 440 yen and up |
This server is strong in disaster preparedness, thanks to data centers in Tokyo and Osaka that automatically back up your data separately by region for the past 14 days. It uses cPanel, the global standard control panel, and allows flexible plan changes.
スターレンタルサーバー評判【24年12月19日リリース】無料から使えるコスパ最強サーバーのメリット・デメリット
スターレンタルサーバー評判【24年12月19日リリース】無料から使えるコスパ最強サーバーのメリット・デメリット
serverfield.org
カラフルボックス：地域別自動バックアップが魅力
On the technical side, integration with the LiteSpeed Cache plugin can greatly improve WordPress display speed. By using PHP in module mode, it can also process requests roughly ten times faster than the older CGI-based approach.
Pricing starts at 550 yen per month on a 36-month contract, making it highly approachable for personal blogs and small business sites.
東京と大阪のデータセンターで、地域を分けて自動バックアップ（過去14日分）を取得してくれる災害対策に強いサーバーです。cPanelという世界標準の管理画面を採用しており、プラン変更も柔軟に行えます。
Rakko Inc. is a major player in the site trading industry. If you use Rakko Server, buying and selling websites is also easy.
Hikaru Ono
I have actually sold a blog myself. With legal support included, I was able to complete the transaction smoothly and with peace of mind.
Sakura Rental Server: The Reliability of a Long-Established Brand
SEOツールで有名なラッコ株式会社が提供するレンタルサーバーです。高速なLiteSpeedサーバーを搭載し、「かんたんブログスタート機能」を使えば、ドメイン取得からWordPressのセットアップまでを短時間で完了できます。Little Server" is a budget hosting service. Excluding free hosts, it is one of the cheapest options for individuals, and it still uses NVMe SSD storage to pursue better speed.
ラッコ株式会社はブログ売買の業界大手です。ラッコサーバーを使うと、ブログ売買も簡単に行えます。
Hikaru Ono
Sakura Internet is the only domestic company selected for the Japanese government cloud.
CORESERVER: A High-Performance Server Backed by GMO's Technical Strength
[No. 10] ColorfulBox: speed improved through regional optimization
This server is run by the GMO Group, a major IT company, and offers high-performance plans backed by strong technical expertise. Its VPS lineup is also substantial, making it suitable for a wide range of uses.
1996年創業という長い歴史と実績を持つ、信頼性の高いサーバーです。個人から大規模な法人まで、幅広い層に利用されています。安定性を重視するサイトや、長期間の運用を考えている場合に適しています。
These are servers with features specialized for particular uses or goals.
コアサーバー：GMOの技術力が光る高性能サーバー
| サーバー種類 | 共用サーバー |
| 表示速度（TTFB） | 210ms |
| おすすめプランと契約期間 | CORE-MINI 12ヶ月契約 |
| お試し・返金保証 | 30日間無料お試し |
| 月額料金（12ヶ月契約） | 264円 |
| 初期事務手数料 | 無料 |
| 無料ドメイン | なし |
| サポート | 営業時間: 10:00-12:00,13:00-17:00 |
| 稼働率 | 非公開 |
| サーバー容量 | 250GB |
| データベース数 | 10個 |
| セキュリティ対策 | WAF、IPS/IDS, access restrictions from overseas IP addresses, login attempt limits, mass comment and trackback restrictions, restrictions on comments and trackbacks from overseas IP addresses |
| SSL | 無料SSL, custom SSL |
| バックアップ/復元 | 15世代バックアップ無料、復元無料 |
| メールアカウント作成数 | 200個 |
| メールセキュリティ対策 | SMTP-AUTH, IMAP |
| WordPressプリインストール | なし |
| サーバー/Webサイト移行代行 | なし |
| CDN | なし |
大手IT企業GMOグループが運営するサーバーで、高い技術力に裏打ちされた高性能なプランを提供しています。VPSプランも充実しており、幅広い用途に対応可能です。
Hikaru Ono
This is an extremely fast server. In our measurements, its display speed ranked No. 2, tied with Xserver Business. No. 1 was Kinsta. At a monthly price in the 1,000-yen range, this speed is outstanding.
特化型・専門性重視のサーバー5選
特定の用途や目的に特化した機能を持つサーバーです。
「 ABLENET RentalServer」 is, a company operated by K&K Corporation, a shared rental server. It has continuously offered unlimited transfer volume and is a pioneer in domestic unlimited transfer volume servers. 25 years of operation history provides peace of mind.
30-day money-back guarantee
| Server Type | Shared Server |
| Display Speed (TTFB) | Not Measured |
| Recommended Plan and Contract Period | Lite Annual |
| Trial Period & Money-Back Guarantee | 30-Day Money-Back Guarantee |
| Monthly Fee (12-Month Contract) | 880 Yen |
| Initial Setup Fee | Free |
| Free Domain | 1 Domain Free Forever |
| Support | Operating Hours: Not Public |
| Uptime | 99.99% |
| Server Capacity | 300GB |
| Number of Databases | Unlimited |
| Security Measures | WAF |
| SSL | Free Dedicated SSL, Optional Dedicated SSL |
| Backup/Restore | 14-Day Automatic Backup Free, Restore Free |
| Number of Email Accounts | Unlimited |
| Email Security Measures | Spam Filter, Antivirus, Sending Domain Authentication |
| Server/Website Migration Assistance | None |
| WordPress Pre-installation | None |
| CDN | None |
This service has long provided VPS (virtual private servers) and has a solid track record. Its discounts on long-term contracts are especially generous, making it very attractive if you want a stable environment at low cost over a long period.
ABLENET Rental Server Review: Is It Good or Bad? A Thorough Look at Real User Feedback and Features
ABLENET Rental Server Review: Is It Good or Bad? A Thorough Look at Real User Feedback and Features
serverfield.org
Heteml: A Feature-Rich Server for Creators
Heteml is GMO Pepabo's ultra-fast hosting service. The price is a little high for individual users, but it spreads web, mail, and backup servers apart so that sudden surges in access do not create a single point of failure.
14-day free trial
| Server type | Shared hosting / Managed server |
| Speed (TTFB) | Not measured |
| Recommended plan and term | 12-month contract |
| Free trial / money-back guarantee | None |
| Monthly price (12-month plan) | 2,035 yen |
| Initial setup fee | Free |
| Free domain | None |
| Support | Phone / Email / Chat (weekdays 10:00–18:00) |
| Uptime | 99.99% actual performance |
| Storage | 600GB |
| Number of databases | Unlimited |
| Security features | WAF / Overseas Attack Guard / Device security |
| SSL | Free SSL / GlobalSign Quick Certification SSL / GlobalSign Organization Validation / GlobalSign EV |
| Backup / restore | 14-day automatic backups / Restoration 5,000 yen |
| Number of email accounts | Unlimited |
| Email security features | Spam filter / Virus scanning |
| Server / website migration service | WordPress migration service 33,000 yen / No migration tool |
| WordPress Easy Install | Yes |
| CDN | None |
It offers large disk space and rich features, and is popular with creators and agencies running multiple sites. Another of its strengths is its easy-to-use control panel.
HETEML Hosting Review and Pricing [2025 Latest]: Pros and Cons Seen Through User Feedback
HETEML Hosting Review and Pricing [2025 Latest]: Pros and Cons Seen Through User Feedback
serverfield.org
VPS（仮想専用サーバー）を長年の実績で提供しているサービスです。特に長期契約での割引率が高く、安定した環境を低コストで長期間利用したい場合に非常に魅力的です。
「 onamae.com Rental Server” has been used by both individuals and businesses. It is Japan’s largest domain registration service, and being able to manage your domain and server together is a major advantage. It makes email, website, and domain management easier across the board.
Eligible domains free forever
| Server type | Shared server |
| Display speed (TTFB) | Not measured |
| Recommended plan and contract term | 12 months |
| Trial / money-back guarantee | None |
| Monthly fee (12-month contract) | 2,398 yen |
| Initial setup fee | Free |
| Free domain | 1 free forever |
| Support | Phone, email, and chat (weekdays 10:00-18:00) |
| Uptime | 99.99% guaranteed |
| Server storage | 1TB |
| Number of databases | Unlimited |
| Security measures | WAF / access restrictions / ads.txt / SiteLock |
| SSL | Free SSL / AlphaSSL |
| Backup / restore | 14-day automatic backups / Free restoration |
| Number of email accounts | Unlimited |
| Email security measures | Spam filter and virus scanning / SMTP over SSL, POP over SSL / IMAP / restriction on outbound mail from overseas / blacklist and whitelist |
| Server / website migration service | No migration service Migration tool available |
| Easy WordPress installation | Yes |
| CDN | None |
This is a hosting service offered by Onamae.com, one of Japan's largest domain registration services. By managing your domain and server together, you can get discounts and simplify administration.
Onamae.com Rental Server Review: 99.99% Uptime, Stability, and Value
Onamae.com Rental Server Review: 99.99% Uptime, Stability, and Value
serverfield.org
大容量のディスクスペースや充実した機能を持ち、複数のサイトを運営するクリエイターや制作会社から支持されています。使いやすいコントロールパネルも特徴の一つです。
“MuuMuu Server” is a server run by GMO Pepabo, Inc. that integrates easily with domains and email. Because it makes it easy to manage your domain, server, and email together, it helps reduce administrative overhead. It also maintains a stable 99.99% uptime.
2 months of server fees free
| Type of server | Shared hosting |
| Speed (TTFB) | Not measured |
| Recommended plan and contract term | 12-month contract |
| Trial / money-back guarantee | None |
| Monthly fee (12-month contract) | 1,430 yen |
| Setup fee | Free |
| Free domain | 1 free forever |
| Support | Email, chat (9:30-13:00, 14:00-17:30) |
| Uptime | 99.99% |
| Storage | 600GB |
| Number of databases | Unlimited |
| Security measures | Virus scanning |
| SSL | Free SSL, dedicated SSL |
| Backup / restoration | 7 generations of backups included, restoration fee not stated |
| Number of email accounts | Not stated |
| Email security measures | Not stated |
| Server / website migration service | Not stated |
| WordPress preinstalled | None |
| CDN | None |
It is run by GMO Pepabo, the same company behind MuuMuu Domain. It integrates smoothly with domains obtained through MuuMuu Domain, and the overall design is easy for beginners to use.
MuuMuu Server Review [2024 Edition]: Thorough Comparison of Pricing, Features, Pros, and Cons
MuuMuu Server Review [2024 Edition]: Thorough Comparison of Pricing, Features, Pros, and Cons
serverfield.org
国内最大級のドメイン登録サービス「お名前.com」が提供するレンタルサーバー。ドメインとサーバーをまとめて契約・管理することで割引などのメリットがあり、管理の手間を省きたい場合に便利です。
These servers are for people who want to start a site at low cost first.
ムームーサーバー：ドメイン取得でお馴染みのサーバーサービス
Up to 53% off server fees through August 5, 2025, two domains free forever, and the first month free
ドメイン取得サービス「ムームードメイン」と同じGMOペパボが運営しています。ムームードメインで取得したドメインとの連携がスムーズで、初心者でも扱いやすい設計になっています。
Pricing starts at 1,089 yen per month on a 12-month contract, and WordPress migration support plus automatic backups are included by default.
格安・エントリー向けサーバー5選
“Value Server” is a low-cost rental server operated by GMO Digirock, Inc. Even though it is affordably priced for individuals, it offers strong features such as free shared SSL and free 15-generation backups.
10-day free trial
| Server type | Shared server |
| Display speed (TTFB) | Not measured |
| Recommended plan and contract term | Eco 12 months |
| Trial / money-back guarantee | None |
| Monthly fee (12-month contract) | 220 yen |
| Initial setup fee | Free |
| Free domain | None |
| Support | Email and chat (weekdays 10:00-17:00) |
| Uptime | Not disclosed |
| Storage | 200GB |
| Number of databases | 1 |
| Security measures | None |
| SSL | Free shared SSL, custom SSL |
| Backup / restore | 15 generations of backups free, restoration free |
| Number of email accounts | 3 |
| Email security measures | POP/POP3S, SMTP/SMTPS, IMAP/IMAPS, spam filter, virus filter, custom filters |
| Server / website migration service | None |
| WordPress preinstallation | None |
| CDN | None |
This low-cost server is run by GMO Digirock and integrates smoothly with Value Domain. It is positioned above XREA, and is a practical choice if you want a more stable environment at a low price.
Value Server Review [2025 Latest]: Start WordPress at a Bargain Price
Value Server Review [2025 Latest]: Start WordPress at a Bargain Price
serverfield.org
非常に低価格なプランから提供されており、小規模なサイトやテスト環境として利用するのに適しています。価格は安いですが、SSDを搭載するなど基本性能は押さえています。
“Shin Free Server” is a free rental server from ShinCloud Co., Ltd. Even though it is free, it does not display the operator’s ads. It is not on the level of paid servers in terms of features or support, but it remains comfortable to use.
Currently closed to new applications other than migrations
| Server type | Shared server |
| Display speed (TTFB) | Not measured |
| Recommended plan and contract term | — |
| Trial / money-back guarantee | — |
| Monthly fee (12-month contract) | Free |
| Initial setup fee | Free |
| Free domain | None |
| Support | None |
| Uptime | Not disclosed |
| Storage | 10GB |
| Number of databases | 5 |
| Security measures | WAF |
| SSL | Free custom SSL |
| Backup / restore | 14-day automatic backups free, restoration free |
| Number of email accounts | None |
| Email security measures | None |
| WordPress preinstallation | None |
| Server / website migration service | None |
| CDN | None |
It is a free hosting service that lets you use WordPress without displaying ads. Capacity and features are limited, but it is extremely valuable for testing or learning before you start seriously. That said, there are cautions such as the lack of support and the need to renew every three months.
Shin Free Server Review and Drawbacks [2025 Latest]: Starting WordPress on Free Hosting
Shin Free Server Review and Drawbacks [2025 Latest]: Starting WordPress on Free Hosting
serverfield.org
GMOデジロックが運営する格安サーバーで、「バリュードメイン」との連携がスムーズです。XREAの上位版にあたり、より安定した環境を低価格で利用したい場合に選択肢となります。
| Server type | Shared server |
| Display speed (TTFB) | Not measured |
| Recommended plan and contract term | Free |
| Trial / money-back guarantee | None |
| Monthly fee (12-month contract) | Free |
| Initial setup fee | Free |
| Free domain | None |
| Support | Email and chat (10:00-17:00) |
| Uptime | Not disclosed |
| Storage | 10GB |
| Number of databases | 5 |
| Security measures | None |
| SSL | Free SSL, shared SSL |
| Backup / restore | 15 generations of backups free, restores free |
| Number of email accounts | 100 |
| Email security measures | POP over SSL, IMAP over SSL, SMTP over SSL, virus scanning |
| Server / website migration service | None |
| WordPress preinstallation | None |
| CDN | None |
This is a long-established service that has offered free hosting for years. Even on the free plan, you can use PHP and databases and install WordPress. Paid plans are also very inexpensive, making it easy to step up later.
XREA Review [2025 Latest]: Pros and Cons of Using WordPress on the Free Plan, Plus Comparisons with Other Free Servers
XREA Review [2025 Latest]: Pros and Cons of Using WordPress on the Free Plan, Plus Comparisons with Other Free Servers
serverfield.org
広告表示なしでWordPressが利用できる無料のレンタルサーバーです。容量や機能に制限はありますが、本格的に始める前のお試しや学習用途としては非常に価値のあるサービスです。ただし、サポートがない、3ヶ月ごとの更新が必要などの注意点もあります。
KAGOYA JAPAN offers rental servers from KAGOYA JAPAN Co., Ltd., with a track record of over 20 years. It can be used at an affordable price. With a 99.999% uptime, it is exceptionally stable and reassuring.
First month free & 14-day free trial
| Server Type | Shared Server / Cloud Server / WordPress Dedicated Server / VPS |
| Load Time (TTFB) | Unmeasured |
| Recommended Plans and Contract Periods | WordPress Dedicated Server Grade 1 12 Months |
| Trial & Money-Back Guarantee | None |
| Monthly Fee (12-Month Contract) | 440 yen |
| Initial Administrative Fee | Free |
| Free Domain | None |
| Support | Weekdays 10:00 a.m. - 5:00 p.m. |
| Uptime | 99.999% guarantee |
| Server Capacity | 20GB |
| Number of Databases | 1 |
| Security Measures | Dashboard Access Restriction / Dashboard Login Attempt Restriction / XML-RPC API Access Restriction / REST API Access Restriction / Large Comment / Trackback Restriction / Foreign IP Address Comment / Trackback Restriction |
| SSL | Free SSL |
| Backup and Restore | One-generation backup included / Restore free of charge |
| Number of Email Account Creation | None |
| Email Security Measures | None |
| Server/Website Migration Service | Migration service: 11,000 yen No Migration Tool |
| WordPress Pre-installed | Yes |
| CDN | Paid |
This is a WordPress-focused server plan provided by KAGOYA JAPAN, a long-established hosting company. Its biggest strength is its robust security features: it comes standard with WAF, access restrictions from overseas IP addresses, and intrusion detection. It uses the fast LiteSpeed web server, and together with an all-SSD configuration, it delivers comfortable display speed.
KAGOYA JAPAN Review: Used by 61,000 Businesses. Is Its WordPress Dedicated Server Cost-Effective?
KAGOYA JAPAN Review: Used by 61,000 Businesses. Is Its WordPress Dedicated Server Cost-Effective?
serverfield.org
古くから無料レンタルサーバーを提供している老舗サービスです。無料プランでもPHPやデータベースが利用でき、WordPressの設置も可能です。有料プランも非常に安価で、ステップアップしやすいのが特徴です。
KAGOYA JAPAN：KUSANAGIでWordPressが速くなる
What Makes a Hosting Service Suitable for WordPress? Five Important Characteristics
To run WordPress comfortably, it is best if the server satisfies certain requirements. The following five characteristics, in particular, directly affect site performance and ease of operation.
- Fast processing performance: CPU, memory, SSDs, and other hardware specs matter. Servers with strong hardware and modern web server software such as LiteSpeed can display pages quickly and give visitors a comfortable browsing experience.
- Stable uptime record: If the server goes down, your site becomes inaccessible. Choose a server known for stable operation, such as one that publicly states 99.9% uptime or higher.
- One-click WordPress installation: This is a feature that lets you install WordPress from the server control panel in just a few clicks. Because it automatically handles tasks such as database setup, it can save a great deal of time.
- Solid security: It is important to check whether the server includes a WAF (Web Application Firewall) to protect your site from attacks and a free dedicated SSL certificate to encrypt communications as standard features.
- Reliable support: Unexpected problems are part of running a site. If support is available 24 hours a day, 365 days a year by email, phone, or chat, you can feel much safer when something goes wrong.
★ Beginner-Friendly Guide to Hosting Uptime and SLAs
WordPress初心者が絶対に知っておくべきレンタルサーバーの基礎知識
Hosting services can mainly be divided into three types based on how resources are allocated. Understand the features of each and choose the one that matches the scale and purpose of your site.
- Shared hosting: This type shares one physical server among multiple users. It is like living in an apartment building and is the most common and least expensive option. It suits personal blogs and small sites, but it can be affected by other users.
- VPS (Virtual Private Server): Also called a virtual dedicated server. It creates a virtual private environment on one physical server and gives you administrator privileges (root access). It offers more freedom than shared hosting and is less affected by other users. It is like a detached house: it requires some knowledge, but it balances cost and performance well.
- Dedicated server: This type gives you exclusive use of one physical server. It offers the highest performance and customization, but it is also the most expensive. It is used for large corporate sites and services that receive heavy traffic.
★ What is hosting? The server you need to publish a website
WordPressを快適に運用するためには、サーバーが特定の要件を満たしていることが望ましいです。特に以下の5つの特徴は、サイトのパフォーマンスや運営のしやすさに直結します。
Price is an important factor when choosing a server, but it is risky to judge only by a low monthly fee.
★
Hikaru Ono
A server is the foundation of a blog or website. Just as a house with a weak foundation is risky no matter how good it looks, I recommend choosing the highest-quality server you can manage.
レンタルサーバーは、リソースの利用形態によって主に3つの種類に分けられます。それぞれの特徴を理解し、自身のサイト規模や目的に合ったものを選びましょう。
★
月額料金だけで選ぶと失敗する理由
サーバー選びにおいて料金は重要な要素ですが、月額料金の安さだけで判断するのは危険です。
- CPU and memory: These correspond to a person's brain and workspace. The more CPU cores and the more memory a server has, the more traffic and complex processing it can handle quickly.
- Disk (storage): This is where data is stored. SSDs are now the standard because they are faster than older HDDs, and servers that use even faster NVMe SSDs can read and write data extremely quickly.
- Web server software: Apache and Nginx are common, but in recent years more servers have adopted LiteSpeed for even faster performance.
- Transfer volume: This is the amount of data consumed when your site is viewed. If the transfer limit is low, the site may stop displaying when traffic spikes.
Note: What Are Traffic and Transfer Volume? Managing and Optimizing Web Traffic
失敗しないWordPressレンタルサーバーの選び方【7つのチェックポイント】
Installing WordPress manually requires specialist steps such as downloading files from the official site, uploading them with FTP software, creating a database, and linking it.
ここでは、数あるレンタルサーバーの中から、自分に合ったものを見つけるための具体的な7つのチェックポイントを解説します。
表示速度を左右するサーバースペックの見極め方
サイトの表示速度は、読者の満足度や検索エンジンからの評価（SEO）に直接影響します。以下のスペック項目を確認しましょう。
- CPU・メモリ: 人間の頭脳や作業スペースに相当します。コア数が多く、メモリ容量が大きいほど、多くのアクセスや複雑な処理を高速にこなせます。
- ディスク（ストレージ）: データを保存する場所です。従来のHDDより高速な「SSD」が主流で、さらに高速な「NVMe」規格のSSDを採用しているサーバーは、データの読み書きが非常に速いです。
- Webサーバーソフトウェア: ApacheやNginxが一般的ですが、近年ではさらに高速な「LiteSpeed」を採用するサーバーが増えています。
WordPress簡単インストール機能の重要性
WordPressを手動でインストールするには、公式サイトからファイルをダウンロードし、FTPソフトでアップロード、データベースを作成して紐付けるといった専門的な手順が必要です。
- Backup frequency and number of generations: Check whether backups are taken automatically every day and whether multiple generations of data, such as the past 14 days, are stored.
- Ease of restoration: It is important that you can restore from backup data easily through the control panel. Some services charge extra for restoration, so pay attention to that.
Hikaru Ono
If your hosting does not include backups, or if you want a second layer of backup, use a WordPress plugin.
5 Powerful WordPress Backup Plugins to Help You Get Your Data Back
5 Powerful WordPress Backup Plugins to Help You Get Your Data Back
serverfield.org
Support Quality: The Value of 24/7 Support
★
- Support hours: Servers with “24/365” support provide peace of mind because you can contact them even late at night or on holidays.
- Contact methods: Check whether multiple contact methods are available, such as email, phone, and chat. Phone or chat support is especially useful when you need an answer quickly.
- Quality of the manuals: Well-organized online manuals that compile common questions and setup procedures are also important for improving your ability to solve problems on your own.
万が一のデータ消失に備え、バックアップ機能は生命線となります。多くのサーバーでは自動バックアップ機能が提供されていますが、その内容は異なります。
When comparing pricing plans, consider the following points, not just the headline monthly fee.
- Setup fee: This is a one-time cost charged when you sign up. It is often waived during campaigns, so timing also matters.
- Contract term and discounts: Many plans offer much lower monthly rates when you sign a long-term contract such as 12, 24, or 36 months.
- Renewal fees: Even if you sign up cheaply during a campaign, the price may return to the regular rate when you renew. If you plan to run the site long term, always check renewal fees as well.
Scalability and Flexibility in Plan Changes with Future Growth in Mind
サポート体制の充実度：24時間365日対応の価値
サイトに問題が発生した際、迅速に解決できるかはサポート体制にかかっています。
料金プラン：初期費用と月額費用の賢い見方
料金プランを比較する際は、表面的な月額料金だけでなく、以下の点も考慮しましょう。
- Xserver: 契約時に一度だけ発生する費用です。キャンペーンで無料になっていることも多いので、契約のタイミングも重要です。
- LOLIPOP: 長期契約（12ヶ月、24ヶ月、36ヶ月）をすることで、月額あたりの料金が大幅に割引されるプランが多くあります。
- ConoHa WING: キャンペーン価格で安く契約できても、更新時に通常料金に戻ることがあります。長期的な運用を考えるなら、更新費用も必ず確認しておきましょう。
将来性を考慮した拡張性とプラン変更の柔軟性
- 【Hostinger】: Despite its low price, it delivers overwhelming speed, making it easy for individuals to get started without falling behind competing sites.
- Xserver: Its stability, speed, and reliable support make it an ideal foundation for a site built to generate revenue.
- ConoHa WING: Its fast display speed works in your favor for SEO and helps prevent visitors from leaving. It is also highly cost-effective.
- mixhost: It can handle a wide range of niches, its display speed is fast, and it is especially well regarded among affiliate marketers.
目的別・用途別おすすめレンタルサーバーの選び方
- wpX Speed: It supports unlimited multi-domain usage and offers plenty of databases. Because it includes reserved resources and automatic scale-up, it is less affected by other sites and can be run stably.
- Shin Rental Server: Because it delivers high performance while keeping costs down, it offers excellent value when running multiple sites.
- ColorfulBox: Because plan changes are flexible and the backup system is robust, you can manage multiple important sites with confidence.
あなたのサイトの目的によって、最適なサーバーは異なります。
- LOLIPOP (Light plan): Its monthly fee is very low, yet it still includes the basic functions needed to start with WordPress.
- Star Rental Server (Light plan): It offers a stable server environment and the features you need despite the low price.
- Little Server (Mini plan): It is the option to choose when you want to minimize cost above all else, and it is sufficient for running a small site.
Hikaru Ono
Free servers have extremely low specs, so I do not recommend them if your goal is monetization or traffic acquisition.
個人ブログ・アフィリエイトサイト向けベストチョイス
複数サイト運営者が選ぶべき高性能サーバー
5 Things You Must Check Before Migrating Servers
- Confirm your current site data: Always take backups of your full WordPress files and database.
- Confirm the new server specifications: Check whether the new server supports the versions of PHP and MySQL used by your current site.
- Check how your domain is managed: If your domain registrar and hosting company are different, you will need to change the name server (DNS) settings.
- Reconfigure the SSL certificate: When you migrate servers, the SSL certificate must also be set up again. Check whether it can be activated on the new server in advance.
- Email addresses: If you use email addresses on the same domain as the server, remember that email data migration and reconfiguration may also be necessary.
Steps and Precautions for a Safe Server Migration
The general migration procedure is as follows. Using plugins can simplify the work.
- Take a backup on the old server: Use a plugin such as All-in-One WP Migration to export the site data, including files and the database.
- Sign up for the new server and configure the domain: Contract the new server and add the domain for the site you are migrating.
- Install WordPress on the new server: In many cases, you install an empty copy of WordPress first.
- Edit the hosts file on the new server and test it: Set things up so that only your own PC accesses the new server, then confirm that the site displays correctly. This is an important test before DNS is switched over.
- Import the data to the new server: Use a plugin such as All-in-One WP Migration to import the data you exported from the old server into the new one.
- Change the name servers (DNS): In the control panel of your domain management company, rewrite the name server information so it points to the new server. This causes public traffic to start going to the new server.
- Cancel the old server: After the name server change has propagated across the internet and you have confirmed for about a week that the site displays stably, cancel the old server.
Five WordPress Plugins for Successful Server Migration and the Keys to Doing It Well
Five WordPress Plugins for Successful Server Migration and the Keys to Doing It Well
serverfield.org
サイトの表示速度改善やコスト削減のため、サーバーの移行（乗り換え）を検討するケースは少なくありません。ここではその手順と注意点を解説します。
サーバー移行前に必ずチェックすべき5つのポイント
- ConoHa WING: WordPressのファイル一式とデータベースのバックアップを必ず取得します。
- mixhost: 新しいサーバーが現在のサイトで利用しているPHPやMySQLのバージョンに対応しているかを確認します。
- Rakko Server: ドメインの管理会社とサーバー会社が異なる場合、ネームサーバー（DNS）の変更作業が必要になります。
- SSL証明書の再設定: サーバーを移行するとSSL証明書も再設定が必要です。新サーバーで事前に有効化できるか確認しましょう。
失敗しないサーバー移行の手順と注意点
一般的な移行手順は以下の通りです。プラグインを使うと作業を簡略化できます。
What to Do When WordPress Feels Heavy or Slow
- Insufficient server specs: The server may not be able to keep up with the amount of traffic. Consider moving to a higher plan.
- Image optimization: Large images are a major cause of slow display speed. Use a compression plugin or similar tools to make your images lighter.
- Plugin conflicts or too many plugins: Disable or remove unnecessary plugins, and check one by one whether a specific plugin is causing the problem.
- Use of caching: If you install a cache plugin or enable the cache feature provided by the server, such as LiteSpeed Cache, page display can become faster.
移行作業を代行してくれるサーバーサービス一覧
サーバー移行は専門的な知識が必要で、失敗するとサイトが表示されなくなるリスクもあります。自信がない場合は、専門家やサーバー会社が提供する移行代行サービスを利用するのが賢明です。
- Check the situation:WordPress移行代行サービスを提供しています。
- Contact support:WordPressの移行を代行する有料サービスがあります。
- ラッコサーバー: 「かんたんWordPress移行」というサポート機能を提供しています。
- その他、多くのサーバー会社や制作会社が有料で移行代行サービスを提供しています。
よくある質問とトラブルシューティング
サイト運営中によくある問題とその対処法です。
WordPressが重い・遅い時の対処法
The best hosting service depends on the purpose of your website, your budget, and your technical skill level.
- For people who want to get started first: “ConoHa WING” and “LOLIPOP” are good fits because their control panels are easy to understand and their upfront costs are easier to keep down.
- For people who seriously want to earn from blogging or affiliate marketing: “Xserver” and “wpX Speed” provide a powerful foundation because they are fast, stable, and backed by dependable support.
- For people who want performance while still prioritizing cost: “mixhost” and “ColorfulBox” are strong options because they actively adopt new technology and offer excellent cost performance.
サーバーダウンの原因はアクセス集中、ハードウェアの故障、サイバー攻撃など多岐にわたります。
Hikaru Ono
If you still cannot decide after reading this far, choose Xserver. You will not go wrong.