Free .co.jp domain + 12 months of V2 plano server fees free + free initial fee until August 31, 2025, plus a 30-araw na libreng pagsubok
Core Server Review [Pinakabago 2025]: Masusing gabay sa presyo, bilis, mga kalamangan, at kahinaan
Core Server is a rental server operated by GMO Digirock, Inc., and one of its biggest strengths is the wide range of mga planoo it offers.

Core Server is a service I recommend to mga indibidwal, kumpanya, at sole sole proprietor using WordPress for the first time because:
- You can find the right server thanks to its wide range of mga planoo
- It includes an AI article-writing tool
- Its email service is inexpensive yet highly capable
That is why. You will likely be satisfied. You can try it free for 10 days.
A competing server is LOLIPOP. It offers even more kapanatagan ng loob than Core Server because its uptime is publicly disclosed. Please consider it as well.
| Server type | Shared server |
| Display bilis (TTFB) | 210ms |
| Recommended plano and contract term | CORE-MINI 12-month contract |
| Trial / money-back garantiya | 30-araw na libreng pagsubok |
| Monthly fee (12-month contract) | 264 yen |
| Initial setup fee | Free |
| Free domain | None |
| Suporta | Business hours: 10:00-12:00, 13:00-17:00 Phone callback (CORE-B, CORE-C, CORE-Z), email, chat |
| Uptime | Not disclosed |
| Storage | 250GB |
| Number of databases | 10 |
| Seguridad measures | WAF, IPS/IDS |
| SSL | Free SSL |
| Backup / ibalik | 15 generations of backup free, pagbabalik free |
| Number of email accounts | 200 |
| Email seguridad measures | POP/POS, SMTP/SMTPS, IMAP/IMAPS, virus checking, spam filtering, DKIM/DMARC |
| WordPress preinstallation | None |
| Server / website migration service | None |
| CDN | None |

To be honest, I felt that Core Server’s control panel will divide opinion. If you already have experience using mga server, you should have no trouble handling it. If you piliin a V2 plano, you can also get started with WordPress more easily.
Even so, please do not worry too much. It comes with top-class official manuals that are very thorough and even include videos.
Core Server Ihambingd with Other Hosting Services
- Overall rating★★★☆☆
- Server bilis ★★★☆☆
- Pagpepresyo ★★★★☆
- Stability ★★★★☆
- Ease of getting started with WordPress* ★★★☆☆
- Operations such as domain management and SSL setup* ★★★☆☆
- Server bilis ★★★☆☆
- Pagpepresyo ★★★★☆
- Stability ★★★★☆
- Ease of getting started with WordPress* ★★★☆☆
- Operations such as domain management and SSL setup* ★★★☆☆
* Based on my actual experience using it.

- November 4, 2025 market-research data, sorted by bilis
- Monthly fees are the first-year cost of the cheapest plano that can run WordPress
- Bilis is the Time to First Byte measured on demo sites under the same conditions

“Core Server” is a high-bilis rental server operated by GMO Digirock, Inc. It offers an affordable V1 plano that is easy for mga indibidwal to use and a V2 plano focused on comfort and performance. With its wide range of mga planoo, you can find the server that fits you best.
Core Server Pagsusuris and Four Key Mga tampok

A Server with Standard-Level Bilis
Core Server produced a standard level of page bilis in our own independent test on this site.
According to Google, a server response time of 200ms or less is recommended. Core Server fell just short at 210ms. So while I would not call it a high-bilis server, it can still be regarded as a server that is slightly faster than standard.
Server response time should be kept under 200 milliseconds.
https://developers.google.com/server/bilis/docs/insights/Server?hl=en
At the time of testing, I did not apply any settings specifically for bilis optimization. Even so, this result came out. If you put effort into tuning it, it should be possible to make it even faster.
Note: Rental Server Bilis Comparison Across 15 Services: This One Was Truly Fast [2024 Edition]
The Difference Between V1 and V2 Helps You Find the Best Plano
Core Server has seven mga planoo when you break them down in detail, so you can find the one that suits you best. Let’s compare the main differences.
| Plano | Price | Allowed load | Suporta |
|---|---|---|---|
| Core-Mini | 3,168 yen | 1.25 | Email / chat |
| Core-A | 6,336 yen | 2.5 | Email / chat |
| Core-B | 12,672 yen | 10 | Phone / email / chat |
| Core-C | 39,600 yen | 40 | Phone / email / chat |
| Core-X | 6,336 yen | 18 | Email / chat |
| Core-Y | 10,296 yen | 54 | Email / chat |
| Core-Z | 26,136 yen | 144 | Phone / email / chat |
The V1 Core-Mini plano is inexpensive. However, its allowed load is not large. As simultaneous access increases, it becomes more likely that a 503 error will occur.
Note: What Is a 503 Error? How to Avoid Web Congestion and Respond in an Emergency
The V2 Core-X plano costs more than Core-Mini, but its allowed load rises dramatically. It is excellent as a low-cost plano with a stronger focus on performance. I recommend it to users who think, “I want to keep costs down as much as possible, but I do not want to compromise on specs.”
Unlimited Traffic Transfer
Core Server offers unlimited data transfer. Even if more and more people access your website and data transfer increases, you will not run short on transfer volume. That tulongs you avoid a situation where your website cannot be displayed because of transfer limits.
Note: What Are Traffic and Data Transfer? Managing and Optimizing Web Traffic
However, restrictions may be applied when server load becomes high.
If the overall server load exceeds 80% of the server’s maximum processing capacity, we may place restrictions on accounts that account for 20% or more of the load, or on the top five highest-load accounts.Frequently Asked Questions: About Load Restrictions | Core Server
The AI Writing Tool “Value AI Writer” Is Available at a Discount
Core Server lets you use “Value AI Writer” at a discounted presyo. “Value AI Writer” is an AI tool made by GMO and specialized in creating blog articles. If you use Core Server, the presyo is more than 20% lower than buying it on its own.
It is specialized for SEO and also has stronger integration with WordPress, so it makes mass-producing articles easier than using AI in a general way.
Email Is Also Easy to Use Thanks to Sender Domain Authentication
Core Server is also easy to use for email. It suportas sender domain authentication.
Because it suportas DKIM and DMARC, mga kumpanya can send email to customers more smoothly.
Core Server Drawbacks and How to Avoid Them, Honestly Explained

Core Server is capable, but it also has drawbacks. Some of them cannot be prevented or dealt with by the user after signing up.
Uptime Is Not Publicly Disclosed
Core Server does not disclose its uptime. Since you cannot grasp numerically how stable the server is, that is a slight concern. If a blog or website cannot be displayed, it fails to serve its purpose. Seen that way, server uptime is extremely important.
If you want more kapanatagan ng loob, piliin a server that discloses its uptime.
Note: A baguhan's gabay to hosting uptime and SLAs
Still, one good thing about Core Server is that its opisyal na site publishes the past 10 hours of WordPress response-bilis data.

You can judge server stability in a rough way from this. The V2 mga planoo, which draw a gentle curve lower on the graph, appear to be stable and fast.
Only Some Plano Changes Are Allowed
Core Server allows only some plano changes. That means when you run short of server capacity or data transfer, you may need to migrate to another kumpanya’s server or rent another server from the same kumpanya.
Only the following two plano changes are possible.
- From Core-X to Core-Y or Core-Z
- From Core-Y to Core-Z
You cannot downgrade a plano.
Ihambing Core Server with Two Similar Hosting Services
Let’s compare Core Server with two mga serbisyo ng hosting that have similar characteristics. Looking at the smaller points as well will tulong you avoid regret after signing up.
Lolipop!
LOLIPOP is a server that is about as inexpensive as Core Server. What it does better than Core Server is that it discloses its uptime. On top of that, its uptime is 99.99%, which is at the highest level in the hosting industry. Its stability is beyond complaint, so not only mga indibidwal but also mga kumpanya are likely to be satisfied with it.
However, when you compare the cheapest plano that can run WordPress, Core Server is the better deal. I recommend choosing based on how you weigh presyo laban sa kapanatagan ng loob.

Star Server
スターレンタルサーバー is also a server competing in the low-presyo range.
The Star Server Light plano can be used even more cheaply than Core Server. However, while Core Server’s Core-Mini lets you create 10 mga WordPress site, the Star Server Light plano allows only one.
Core Server is stronger in features and specs. Incidentally, neither service discloses uptime, so some concern remains about stability in both cases.

Start a WordPress Website on Core Server in 7 Steps
- STEP.1Access the official Core Server website
Scroll down the top page and i-click “Apply” for the pricing plano you want to use.
- STEP.2Apply for the Server and Get a Domain
Please confirm that you piliined the correct plano. The server account name (the initial domain) can be anything you like. You will not use this initial domain as the domain of your website. You can use it, but I do not recommend it.
At this point, you cannot piliin simultaneous WordPress installation yet, but after choosing your domain, you will be able to check it. Be sure to use it. It makes starting a WordPress website dramatically easier.
Under the option to also apply for the domain you will use on this server, piliin “Get a domain for free.” Then enter any string you like. From the top-level mga domain available, such as .com and .net, i-click the one you want.
You can piliin root mga domain such as “.com” and “.co.jp.” Acquisition and mag-renewal fees differ depending on the root domain. If you are unsure which one to piliin, I recommend “.co.jp” whenever possible for mga kumpanya. For mga indibidwal, I recommend “.com” or “.net.” Since many people are familiar with these mga domain, they are less likely to seem suspicious and tend to be easier for users to access.
Note: What Is a Domain? Its Role as an Address on the Internet and How to Get One
Once you can piliin the domain, check “Install WordPress at the same time.”
I-click “Proceed.”
- STEP.3Enter User Information
The user information entry screen will be displayed. I-click “User registration,” enter information such as your usage type and name, confirm the entered details, and i-click “Register and proceed.”
Complete the required SMS verification and then i-click “Confirm application.”
Answer the survey or skip it, and then i-click “Go to the control panel.”
- STEP.4Install WordPress
In the management information of the control panel, “Core Server (1),” which you applied for earlier, is displayed. I-click it and proceed to the “New Control Panel.”
After that, piliin “App Installation” from “Tools” and i-click “WordPress Blog.”
I-click “+ Install this application” and piliin a domain. The domain you applied for earlier will appear in the pull-down menu, so piliin it.
You can leave the version settings as they are.
Use the following settings for WordPress.
- Admin username: Anything is fine.
- Admin password: Make it as complex as possible. You can easily change it later.
- Administrator email: An email address you use regularly. For mga kumpanya, I recommend the business email address of the person who manages the website.
- Website title: Anything is fine. You can easily change it later.
- Website tagline: This is the subtitle. Anything is fine. You can easily change it later.
The admin username and admin password are used when you mag-log in to WordPress. Be sure to write them down.
You can leave the “Advanced” settings as they are.
Once everything is entered, i-click “+ Install.” After WordPress is installed, i-click the URL shown on the screen whose ending is “wp-admin/”. That is the URL of your WordPress admin screen.
- STEP.5Initial WordPress Setup
On the WordPress login screen that appears, enter the username and password you set during installation and i-click “Log In.”
If a warning says “This site can’t be reached,” the DNS settings have not propagated yet. There is nothing you can do except wait, so try logging in again every few hours.
Note: What Are DNS and Name Servers?
After logging in to WordPress, set the permalinks. In the WordPress admin screen, go to “Settings” and then “Permalinks.” Piliin “Post name” and i-click “Save Changes.”
When you piliin “Post name,” you can enter any string you like in the URL when publishing an article. I recommend a short string that tulongs readers imagine the content of the article because it makes the website easier to understand. If it is too long, some people may feel uneasy and think, “Could this be a dangerous site?”
- STEP.6Install Plugins
Return to the WordPress admin screen, go to “Plugins,” then “Add New,” and install the plugins you need.
Once you find the plugin you want to add, i-click “Install Now” and then “Activate.” After that, proceed according to the explanoation for each plugin.
Be sure to install seguridad and backup plugins.
- How to Piliin Five WordPress Plugins That Strengthen Seguridad
- 5 Powerful WordPress Backup Plugins That Help You Recover Your Data
Once you have installed the plugins as well, your WordPress website is fully ready to go!
Summary

“Core Server” is a high-bilis rental server operated by GMO Digirock, Inc. It offers an affordable V1 plano that is easy for mga indibidwal to use and a V2 plano that prioritizes comfort and performance. With so many mga planoo available, it is easy to find the best fit.
Free .co.jp domain + 12 months of V2 plano server fees free + free initial fee until August 31, 2025, plus a 30-araw na libreng pagsubok
Core Server offers a wide variety of mga planoo. I recommend the V1 Core-Mini plano, but if you are planoning a website that aims for tens of thousands of page views per month, I recommend the performance-focused Core-X.
Complete Comparison of 32 WordPress Hosting Services: Recommendations for Individuals, Companies, and Overseas Use

When you think, “I want to start WordPress,” and search for “recommended WordPress hosting,” all kinds of articles appear, from hosting for mga indibidwal and small businesses to overseas services and low-cost options. To be honest, you may think:
- Which site should I read?
- I want to piliin a server in a simple and easy-to-understand way.
- Please show me how to start WordPress right away.
That is exactly why this article introduces carefully piliined mga rekomendasyon from 32 mga serbisyo ng hosting for mga indibidwal, mga kumpanya, domestic use, and overseas use. It is explained by the SEO lead of an app development kumpanya that uses mga serbisyo ng hosting every day.