What Xserver does

Xserver (エックスサーバー株式会社) is a privately held Japanese cloud infrastructure group founded in 2004 and headquartered in Osaka, operating as Japan's largest shared web hosting provider with a 25.7% domestic market share (W3Techs, December 2025) and 2.5 million+ sites under management. The company is led by founder/President Naoki Kobayashi and operates through a group structure that includes Xserver Cloud Co., Ltd. (infrastructure operations), XRegistry Co., Ltd. (domain registry), XS Customer Service Co., Ltd. (customer support), and Shin Cloud Co., Ltd. (next-generation service brands). The core technology stack is built on third-generation AMD EPYC processors, all-NVMe RAID10 SSD storage, and the KUSANAGI WordPress acceleration environment (via a technical partnership with Prime Strategy), delivered through proprietary automation and the Xアクセラレータ site-speed layer.

Xserver's product portfolio spans the full hosting and internet-services stack: shared hosting (Xserver, Xserver Business, シン・レンタルサーバー), managed WordPress hosting (Xserver for WordPress, wpX Speed), VPS and specialized virtual servers (Xserver VPS, VPS for Windows Server, VPS for Game, VPS for FX Premium, VPS for GPU), domain registration (Xserverドメイン, シン・ドメイン), SSL certificates (Xserver SSL with 1.7M+ issued), cloud storage (Xserverドライブ with 5,000+ corporate deployments), virtual desktop (Xserver クラウドPC), static content hosting (Xserver Static), e-commerce (Xserverショップ built on EC-CUBE), and website security (Xserver Site Security, CloudSecure WAF). The WordPress ecosystem is reinforced through the acquired Cocoon theme (2M+ downloads) and the XWRITE theme.

The business model is a high-volume, subscription-based PLG motion: customers sign up online with automated provisioning, paying monthly or annual fees (entry hosting from ¥990/month, VPS from ¥830/month, enterprise plans from ¥3,420/month) across a 250万+ site base. GTM combines self-serve web portals with the A8.net affiliate network, a formal business partner/reseller program, dedicated enterprise sales for Xserver Business, and owned SEO content media. FY2025 (March 2025) revenue reached ¥83,544,200,000 — the 21st consecutive year of revenue growth — with 255 group employees and an S&P Global 'aaa' SME credit rating held for five consecutive years.

Name

Xserver

Legal name

エックスサーバー株式会社

Website

https://xserver.co.jp

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

1–10 employees

Short description

Xserver is Japan's largest shared web hosting provider (25.7% domestic share, 2.5M+ sites), offering subscription-based shared hosting, VPS, WordPress, domain, SSL, and cloud infrastructure services to individuals, SMBs, and enterprises through a product-led self-serve model with dedicated enterprise sales.

Ownership category

akta.pro rank

Product category

Web Hosting Services

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210)

SIC

Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Managed Application Platforms (App PaaS & Runtime Services) (HDABAAAD)

Keywords

• Shared web hosting
• Virtual private servers
• Managed WordPress hosting
• Domain registration services
• Cloud infrastructure platform

Headquarters

HQ city

Osaka-shi

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Infrastructure, Personnel, Marketing or Sales, Technology or R&D, Operations

Revenue model

1. Rental Server Subscriptions: Monthly and annual subscription fees from shared and managed hosting plans (エックスサーバー, Xserverビジネス, Xserver for WordPress, シン・レンタルサーバー). Revenue is recurring, driven by 250万+ hosted sites and 20万+ enterprise customers.
2. VPS and Cloud Services: Virtual private server and cloud desktop services (Xserver VPS, Xserver VPS for Windows Server, Xserver クラウドPC, Xserver GAMEs, Xserver SNS) billed monthly via subscription, with plans ranging from ¥830/month for entry VPS to ¥63,360/month for high-spec configurations.
3. Domain Registration and SSL Certificates: Domain registration services (Xserverドメイン, シンドメイン) and SSL certificate issuance (Xserver SSL, SSL BOX) generating annual recurring revenue from domain renewals and one-time or annual SSL certificate fees.
4. Enterprise Services and Add-ons: Paid add-ons including site security scanning (XServer サイトセキュリティ), fixed IP access, setup/migration assistance, premium support, and EC shop creation (Xserverショップ) generating incremental subscription and one-time fees.
5. WordPress Themes and Plugins: Premium WordPress theme (XWRITE at ¥990/month) and security plugin (CloudSecure WP Security) sold as subscriptions, complementing the hosting platform ecosystem.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels9 records

Core offering

Xserver provides subscription-based cloud infrastructure services in Japan, centered on shared web hosting (with WordPress-optimized acceleration via KUSANAGI), enterprise hosting, VPS (with root access on AMD EPYC and NVMe storage), cloud virtual desktops, game servers, domain registration, SSL certificates, cloud storage, and related managed services. Offerings are sold as monthly/annual subscriptions accessible online, with both consumer self-serve plans and dedicated enterprise hosting tiers for 20万+ corporate customers.

Product overview

Xserver (エックスサーバー株式会社) is Japan's leading cloud infrastructure group offering a comprehensive portfolio of hosting and internet services. The core product is the XServer shared hosting platform — Japan's No.1 shared hosting service with 250万+ sites under management — which anchors an ecosystem including XServerビジネス (corporate hosting), XServer for WordPress (managed WordPress), XServer VPS (root-access VPS), XServer VPS for Windows Server, XServer VPS for Game, XServer VPS for GPU, XServer VPS for FX プレミアム, Xserver クラウドPC (virtual desktop), Xserver GAMEs, Xserver SNS, Xserver 固定IPアクセス (fixed IP access), and Xserver Static (free static hosting). The シン (Shin) sub-brand covers シン・レンタルサーバー, シン・VPS, シン・フリーサーバー, and シン・クラウドデスクトップ for specialized segments. Domain and security services include XServerドメイン, XServer SSL, SSL BOX, XServer サイトセキュリティ, クラウドセキュアWAF, and CloudSecure SSL. Cloud storage is provided via XServerドライブ, and e-commerce via XServerショップ built on EC-CUBE. WordPress extensions include Xwrite and Cocoon themes, plus CloudSecure WP Security plugin. The group operates across 4 companies: エックスサーバー株式会社 (hosting), エックスサーバークラウド株式会社 (cloud infrastructure), XRegistry株式会社 (domain registry), and XSカスタマーサービス株式会社 (customer service).

Differentiator

Problem solved

Functional benefit

Brands

• XServer レンタルサーバー: Japan's No.1 market share rental server service with 20+ years of operation and 2.5 million+ managed sites
• XServerビジネス
• XServer for WordPress
• XServer VPS
• XServerドメイン
• XServerドライブ
• XServer SSL
• XServer GAMEs
• XServer クラウドPC
• XServer SNS
• シン・レンタルサーバー
• シンVPS
• シン・ドメイン
• wpX Speed
• wpXシン・レンタルサーバー
• スターレンタルサーバー
• スタードメイン
• Cocoon
• Xwrite

Products and services

• XServer レンタルサーバー (XServer Shared Web Hosting) Japan's No.1 market-share shared web hosting service with 99.99%+ uptime, KUSANAGI-powered WordPress acceleration, unlimited domains, email, and MySQL. Entry pricing from ¥990/month. Targets individuals, freelancers, and SMBs.
• XServerビジネス (XServer Business) Corporate-focused shared and dedicated hosting service with setup/migration assistance, free homepage creation, dedicated servers, enhanced security, and business-grade support. 20万+ enterprise customers onboarded. Pricing from ¥3,420/month.
• XServer for WordPress Managed WordPress hosting service for corporate users combining Xserver's hosting platform stability and security with WordPress-specific features and dedicated support.
• XServer VPS Virtual private server with root access, third-generation AMD EPYC CPUs, NVMe SSD storage, and 2GB RAM starting at ¥830/month. Targets developers and tech-savvy users; #1 in Japan for performance and cost-performance.
• XServer VPS for Windows Server Windows OS-based VPS service with NVMe storage, supporting Remote Desktop and Microsoft Office. Pricing from ¥1,980/month (2GB plan).
• XServer VPS for Game / Xserver GAMEs Multiplayer game server hosting for Minecraft, ARK, Rust, and 30+ other game titles, with pre-configured templates for one-click setup. From ¥830/month.
• XServer VPS for FX プレミアム Resource-dedicated VPS optimized for FX automated trading with high response performance and stable operation even during trade concentration periods.
• XServer VPS for GPU GPU server service designed for generative AI training/inference and high-speed data processing workloads.
• XServer クラウドPC (Cloud PC Virtual Desktop) Cloud-based Windows virtual desktop service accessible from any internet device, using NVMe SSD and AMD EPYC processors with 99.99% uptime SLA.
• Xserver SNS Hosted server service enabling users without specialized technical knowledge to easily deploy social networking servers (e.g., Misskey) from ¥891/month.
• XServer 固定IPアクセス (Fixed IP Access) Enterprise fixed IP access service enabling secure remote connections to internal systems, cloud services, and management dashboards using pre-approved fixed IP addresses, with user management, connection history, and log output features.
• Xserver Static Free cloud hosting service optimized for serving static web content.
• XServerショップ (E-commerce Site Service) E-commerce site creation service built on the EC-CUBE open-source platform (180万+ downloads in Japan), offering unlimited product listings with no setup or monthly fees.
• XServerドメイン (Domain Registration) Domain registration service with the #1 domestic growth rate in Japan, offering .com/.net from ¥0 for first-time registrants and low-cost renewals; includes free DNS record editing and Whois privacy proxy.
• XServer SSL (SSL Certificate Service) SSL certificate issuance service with 170万+ issued certificates, offering up to 71% discounts and same-day issuance. Includes free Let's Encrypt and premium EV SSL options.
• XServerドライブ (Cloud Storage) Enterprise cloud storage with unlimited users, NVMe SSD options, and enterprise-grade security. 5,000+ companies onboarded. Data stored domestically in Japan.
• XServer サイトセキュリティ (Site Security Diagnostic) Website security diagnostic service that automatically performs daily security checks on URLs registered by the customer.
• XServer API and XServer MCP Server Public API and MCP (Model Context Protocol) server enabling AI agents and external programs to execute server operations programmatically on XServer VPS and related services.

Quantifiable outcome

• 99.99%+ server uptime across core hosting services
• +5 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability2 records

Feature5 records

Partnerships

Twelve partnerships are on record, tiered minor and core.

• Misskey (しゅいろ氏 / Misskey開発プロジェクト)minorStrategic or Co-development Partner · 27 October 2023Xserver provides development environment hosting and financial funding to support the open-source decentralized SNS Misskey project. Xserver was the first Japanese VPS provider to offer a one-click Misskey app image, and subsequently offered development aid to accelerate the OSS project's roadmap.
• 京都市 (City of Kyoto)minorOthers · 20 June 2023Xserver donated ¥10 million to Kyoto City's SDGs Future City Promotion Plan via the corporate version of the hometown tax donation program (企業版ふるさと納税), supporting the '文化遺産・文化芸術を守りたい！' project. Kyoto is Xserver's founding city.
• Prime Strategy Co., Ltd. (プライム・ストラテジー株式会社)coreTechnology or Integration · 31 May 2021Technical partnership to integrate 超高速WordPress実行環境 'KUSANAGI' (virtual machine/image optimized for WordPress) into Xserver hosting services. KUSANAGI optimizes PHP and MySQL processing, achieving world-class WordPress execution speeds. Xserver deploys KUSANAGI across its WordPress hosting lineup, with wpXシン・レンタルサーバー receiving the technology first.
• Dell Corporation (デル株式会社)minorStrategic or Co-development Partner · 30 June 2017Collaboration with Dell Corporation to provide cloud services targeting mid-sized enterprises ('ひとり情シス' support). Dell's announcement referenced Xserver's hosting infrastructure as part of their SMB cloud service offerings.
• Netowl Inc. (ネットオウル株式会社)minorOthers · 17 January 2013Associated company (関連会社) after Xserver participated in Netowl's third-party share allocation in January 2013. Netowl operates domain and free hosting services including スタードメイン.
• GlobalSign (グローバルサイン)minorChannel Partner/ Reseller/ DistributorPartnership with GlobalSign to offer one-click SSL certificate installation (ワンクリックSSL) via API integration into Xserver's hosting control panel, simplifying SSL deployment for customers.
• Shin Cloud Inc. (シンクラウド株式会社)coreOthersXserver group company established November 2023 to operate newer/speed-focused services (シン・レンタルサーバー, シン・VPS, wpX Speed, etc.). Transfer of relevant services from Xserver to Shin Cloud completed February 2024. Shin Cloud operates independently with its own brand identity and management.
• XRegistry Inc. (XRegistry株式会社)coreOthersGroup company responsible for domain registry operations — sourcing and managing domain names for resale through registrars. Led by Simon Yannick (CEO), established April 2024.
• XS Customer Service Inc. (XSカスタマーサービス株式会社)coreOthersGroup company providing customer support services (email, phone, chat) for Xserver group customers. Acts as 'concierge' for end-user inquiries, handling Tier 1-2 support across all group services.
• Xserver Cloud Inc. (エックスサーバークラウド株式会社)coreOthersGroup company responsible for server infrastructure development, management, and operations. Operates data center colocation facilities and manages the large-scale network backbone supporting all Xserver services.
• CloudSecure Inc. (クラウドセキュア株式会社)minorOthersGroup company (established via ハービスENT offshoot) operating security services including CloudSecure WAF, SSL certificates, and site security scanning services.
• Cocoon Developer (わいひら氏)coreStrategic or Co-development PartnerXserver acquired the Cocoon WordPress theme development business in September 2022 while maintaining developer わいひら氏 as lead maintainer via a business partnership. Cocoon remains free and available on all hosting platforms. Xserver provides technical and financial support to ensure continuity.

Scale indicators12 records

Recent moves19 records

Expansion highlights6 records

Direct peers

• GMO Internet Group (ConoHa by GMO, お名前.com, ムームードメイン): Japan's largest internet conglomerate with ConoHa VPS/Wing, ロリポップ!, and お名前.com directly competing against Xserver's VPS, shared hosting, and domain services. Closest like-for-like Japanese competitor given overlapping product breadth and PLG-style self-serve model.
• Sakura Internet (さくらインターネット): Long-standing Japanese hosting and cloud provider offering さくらのレンタルサーバー, さくらのVPS, and さくらのクラウド. Comparable business model focused on domestic SMB/enterprise with similar VPS and shared hosting tiers and No.1/share-tier positioning in Japan.
• KAGOYA JAPAN: Japanese hosting provider offering shared hosting, VPS, dedicated servers, and cloud services with comparable self-serve pricing and target SMB segment. Direct overlap with Xserver VPS and rental server lines.
• paperboy&co. (ロリポップ! / ヘテムル): GMO subsidiary operating the popular ロリポップ! shared hosting brand and ヘテムル. Direct mass-market hosting competitor to Xserver's entry-level shared hosting, particularly for individual and SMB WordPress users.
• mixhost: Japanese managed cloud hosting service (operated by DigitalCube) emphasizing high-performance WordPress and LiteSpeed-based hosting. Directly comparable to Xserver's WordPress-focused products with similar premium positioning and developer-friendly feature set.
• Hostinger: Global low-cost hosting provider with strong PLG motion, hosting WordPress, VPS, and domain products. While not currently a major Japanese competitor, comparable self-serve PLG model and aggressive pricing philosophy make it a relevant global benchmark for Xserver's SMB/individual segment.

Broad incumbents

• CPI (KDDI Web Communications): KDDI subsidiary offering shared hosting, VPS, and managed WordPress (Kinsta-style) services. Comparable enterprise-grade managed hosting with the additional backing of a major telecom parent's infrastructure and customer base.
• IDC Frontier (NTT Group): NTT subsidiary providing hosting, cloud (IDCFクラウド), and data center services. Broader incumbent with similar VPS/cloud offerings but primarily targeting enterprise customers; overlaps with Xserver Business and Xserver Cloud.
• Internet Initiative Japan (IIJ): Major Japanese internet and cloud services provider with IIJ GIO hosting, IIJ Omnibus, and related cloud offerings. Broader incumbent competing with Xserver's enterprise hosting and cloud infrastructure products across larger enterprise segments.

Emerging players

• ColorfulBox (カラフルボックス): Smaller but rapidly growing Japanese shared hosting provider focused on WordPress and LiteSpeed-based hosting. Overlaps with Xserver's entry-level and managed WordPress offerings but at smaller scale and narrower product range.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/xserverjp
• Facebookfacebook.com/xserver.co.jp

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Xserver