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今すぐ世界のトップSSLブランドを一か所で購入できます。

Comodo、GlobalSign、Digicert、GeoTrust、Thawte、Sectigo、Entrust・・・

SSL証明書

Secure あなたの website with trusted SSL.

Enable HTTPS, encrypt website traffic と choose the right certificate fまたは one website, subドメインs または multiple ドメインs.

Starting at$12.99/ 年
取得 SSL Help Me Choose
無料 reissues24/7 human suppまたはtTrusted CA options
A secure website starts with HTTPS
● https://example.com
✓
Connection secured
SSL/TLS encrypts data between あなたの website と its visitまたはs.
ICANN認定レジストラ 2006年以来
Trusted CA OptionsChoose fまたは different website needs
無料 再発行Reissue when あなたの setup changes
24/7 有人サポートHelp when you need it

SSL Finder

Find the right SSL in two simple choices

Choose what you need to secure, then select the level of identity verification you need.
1 · Coverage2 · 認証

What do you need to secure?

How much identity verification do you need?

Recommended

単一ドメイン DV SSL

A practical choice fまたは one stとard website that mainly needs HTTPS と encryption.

$12.99/ 年View This SSL

Choose by coverage

Start with what you need to protect

You do not need to understと SSL terminology first. Start with あなたの website setup.
Best fまたは most websites

ONE WEBSITE

シングルドメインSSL

example.com

Fまたは one website または ドメイン that needs HTTPS protection.

  • Simple choice fまたは stとard websites
  • DV, OV と EV options
  • Fast DV issuance available
From $12.99/年View plans

ONE DOMAIN + SUBDOMAINS

ワイルドカードSSL

*.example.com

Fまたは one ドメイン with multiple first-level subドメインs such as shop, mail, api または pまたはtal.

  • One certificate fまたは many subドメインs
  • Useful fまたは growing web platfまたはms
  • DV と OV options

DIFFERENT DOMAINS

マルチドメインSSL

example.com + brand.net

Fまたは businesses, agencies と IT teams managing several different ドメイン names.

  • Secure multiple ドメインs together
  • Suitable fまたは business pまたはtfolios
  • DV, OV と EV options

Choose verification

DV, OV または EV: choose the identity level you need

このse options differ mainly in verification depth. Start with DV unless verified business identity is part of あなたの requirement.
FASTEST

DV · ドメイン 認証

Verifies control of the ドメイン と enables HTTPS quickly.

  • ドメイン control verification
  • Fastest validation path
  • Good fまたは stとard websites
BUSINESS

OV · Organization 認証

Verifies the ドメイン と the またはganization behind the website.

  • Organization identity checked
  • Suitable fまたは public-facing businesses
  • 利用可能 fまたは Single, Wildcard と Multi-ドメイン
EXTENDED

EV · 拡張 認証

Uses extended またはganization verification fまたは higher identity assurance.

  • 高est verification depth
  • Fまたは またはganizations with stronger identity requirements
  • 利用可能 fまたは Single と Multi-ドメイン
暗号化 strength is not the main difference between DV, OV と EV. この main difference is how much identity verification is perfまたはmed befまたはe issuance.

Why NiceNIC SSL

Professional SSL without unnecessary complexity

Clear choices fまたは everyday websites, growing platfまたはms と business environments.
🔒

Secure HTTPS connections

Encrypt data exchanged between website visitまたはs と あなたの server.

↻

無料 certificate reissues

Reissue あなたの certificate when あなたの deployment, key または server setup changes.

◉

24/7 human suppまたはt

取得 help choosing と managing あなたの SSL certificate when you need it.

Fまたは advanced 購入するers

Compare SSL types when you need mまたはe detail

Most customers can use the SSL Finder above. 開く this comparison if you want to compare technical coverage と validation options.
Compare Single, Wildcard と マルチドメインSSL
種類What it securesDVOVEV
単一ドメインOne website または ドメインはいはいはい
WildcardOne ドメイン + first-level subドメインsはいはいいいえt available
Multi-ドメインSeveral different ドメインsはいはいはい

SSL FAQ

Common SSL certificate questions

Clear answers fまたは customers, search engines と AI search systems.
Which SSL certificate should I choose?
Choose シングルドメインSSL fまたは one website, ワイルドカードSSL fまたは one ドメイン と its first-level subドメインs, または マルチドメインSSL fまたは several different ドメインs. このn choose DV, OV または EV based on the identity verification you need.
What is the difference between DV, OV と EV SSL?
DV verifies ドメイン control. OV also verifies the またはganization behind the website. EV uses extended またはganization verification fまたは higher identity assurance. この main difference is verification depth, not basic HTTPS encryption strength.
Can one SSL certificate secure multiple ドメインs?
はい. A マルチドメインSSL certificate can secure multiple different ドメイン names, subject to the plan's ドメイン limits.
Does SSL make a website trustwまたはthy?
SSL encrypts the connection と enables HTTPS. It does not by itself guarantee that a website または its content is trustwまたはthy. OV と EV add またはganization identity verification fまたは use cases that require it.
How long is a publicly trusted TLS certificate valid in 2026?
Publicly trusted TLS certificates issued from March 15, 2026 through March 14, 2027 can have a maximum technical validity period of 200 days. Longer commercial subscription terms may tこちらfまたはe require reissuance during the subscription period.
Can I reissue my SSL certificate?
NiceNIC SSL plans suppまたはt free reissues. Reissuance can be useful when server settings, keys または certificate deployment details change.
Do I need OV または EV fまたは a nまたはmal website?
Many stとard websites can start with DV. Choose OV または EV when verified またはganization identity is an impまたはtant requirement fまたは the website または business.
Wこちら can I get help choosing SSL?
Use the SSL Finder on this page または visit the NiceNIC Suppまたはt Center fまたは help with SSL selection と management.

Ready to secure あなたの website?

Start with シングルドメインSSL fまたは a stとard website, または use the SSL Finder to choose advanced coverage.

$12.99 / 年 starting price取得 SSL
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