Reviews and expert opinion Sixcore

Gwen Rodgers
Gwen Rodgers
Web Hosting Expert

Japanese company X Server’s Sixcore subsidiary offers high-performance, multi-domain rental servers. Its website might be hard for you to decipher if you don’t speak Japanese.


Screenshot 2019-06-29 at 16.07.33Sixcore is a small hosting company that simply isn’t a match for big brands like Hostinger. The bigger hosting companies simply offer a better price for similar configuration.

Sixcore is a brand of Japanese company X Server Corporation, which was established in 2004. Thanks to this company’s ample experience in server operation and maintenance, accumulated over many years, Sixcore can offer high-performance, high-quality rental servers as well as domain registration, domain management, and security enhancement services such as proprietary SSL certificates.

Servers are located in Japanese data centers that have several security measures, including 24/7 surveillance, room access controls, earthquake countermeasures, fire prevention systems, and blackout countermeasures.

Sixcore’s website supports Japanese, and it translates poorly into English.

Features and Ease of Use

Sixcore offers four shared server plans (S1, S2, S3, and S4), and all except for the S1 plan provide a free domain. Some of the other features of these four plans are:

  • 5 to 10 domains
  • 50 GB to 200 GB disk space
  • 14 Tbps bandwidth
  • 100 to 400 subdomains
  • Unlimited email accounts
  • 10 to 40 FTP accounts
  • 5 to 20 MySQL databases
  • Ability to use your own SSL
  • Automatic backups
  • Perl, PHP, Python, and Ruby programming support

A one-click installer lets you install popular programs such as WordPress and EC-Cube. Robust security measures include a web application firewall (WAF), Cloudmark spam software, and F-Secure’s antivirus program.

Servers are equipped with the latest high-performance 16-core CPUs and a large memory capacity of 96 GB memory. These servers are owned by Sixcore (or its parent company) and are managed in-house. Sixcore restricts the number of users using each server, thus ensuring fast and stable website operations for customers. RAID 10 replicates your data so that you are protected against disk failure.

Pricing and Support


Sixcore’s shared hosting plans are incredibly costly; up to five times the global industry average, and even high for the expensive Japanese market. You pay for plans in Japenese yen (JPY) by bank transfer (incurs a fee), credit card, debit/prepaid card (which may depend on the card issuer), or at a convenience store (such as 7-Eleven). Available billing cycles are quarterly, half-yearly, and yearly.

You can take advantage of a 14-day free trial period that runs from the server application date to the payment due date, and Sixcore also offers various speed tests to check rental servers’ response times before you buy a plan.

Although you can supposedly contact this company’s customer support team via telephone, support ticket, or email (via an online form), my exploratory email went unanswered. Fortunately, those seeking self-support resources can find a failure and maintenance information page, an F.A.Q. page, and an online manual. The only downside for someone like me is how well these resources translate into English.


How does Sixcore match up to the competition?

HostingerCompare 4.9 Compare
InterServerCompare 4.8 Compare
SixcoreCompare 4.1 Compare
BluehostCompare 2.5 Compare



Sixcore Web Hosting

Sixcore Dedicated Server

Plan NameStorageBandwidthCPURAMPricePlan NameStorageBandwidthCPURAMPriceDedicated Server1000 GBUnlimitedXeon 6 core CPU24GB$249.04More Details
More details
A Free Domain is included when purchasing any hosting service from Sixcore

User reviews

Be the first user to leave a review about Sixcore in English!
Write a Review

Bottom line on Sixcore

If you don’t mind paying a premium for high performance, you could take Sixcore’s multi-domain rental servers for a spin.

Sixcore might offer a good service at a reasonable price, but does it match up with the top web hosting companies? We find it hard to say “yes.”


  • 15 years of industry experience
  • Multi-domain rental server
  • 14-day free trial period
  • Various payment methods and billing cycles


  • Extremely steep pricing
  • Plans only payable in Japanese yen
Gwen Rodgers
Gwen Rodgers
Gwen is a web developer and software engineer who loves to get lost in JavaScript (and a good book). She spends her free time teaching girls how to be coders, and doing yoga on her balcony in the sunshine.

Sixcore Alternatives

Cheapest prices in the market for long-term plans
Read Review
Liquid Web
Best managed hosting for multiple platforms, from WordPress to Magento
Read Review
The best choice for flexible hosting on a month-to-month basis
Read Review
Fastest, most consistent speeds in our testing
Read Review