ssl证书是互联网安全的基础。它们用于建立加密连接，并允许在浏览器或用户的计算机与服务器或网站之间安全地传输数据.
DV SSL（已通过域验证） 证书是最简单，最常见的SSL证书类型。OV and EV Certificates 还可以验证持有证书的公司或组织的身份，从而为最终用户提供更多信任。
谷歌希望让网络更安全，其中很大一部分涉及确保人们通过谷歌访问的网站是安全的。这就是为什么使用SSL的网站会从搜索结果的更高排名中获益.
还有很多理由可以考虑将ssl添加到网站中:
未通过https提供服务的网页现在在google chrome和mozilla firefox中显示为“不安全”。不要让你的网站成为其中之一。立即添加SSL
虽然所有ssl证书都使用类似的方法来保护和验证您的数据，但它们提供的信任和断言级别是不同的.
扩展的验证证书提供了最高级别的验证和信任。它们会验证并显示公司或组织的名称以及绿色地址栏，绿色地址栏是网络上最易识别的信任指标之一.
尽管普遍存在在线安全需求，但并非所有SSL证书都是一样的.以下指南旨在帮助您确定哪种证书适合您.
RapidSSL® Certificates help you keep your customers' transactions secure with up to 256-bit data encryption and site authentication. Buy a certificate and speed through enrollment with automated domain control validation. Best of all, our SSL certificates are among the most affordable in the industry. We keep our costs down and pass the savings on to you.
Secure your website fast. GeoTrust® QuickSSL® Premium certificates are one of the quickest ways for you to start protecting online transactions and applications with SSL. With an automatic authentication and issuance process, it takes just minutes to get your QuickSSL Premium SSL certificate. After that, managing and renewing your certificates is a snap. With GeoTrust, you get inexpensive SSL without sacrificing convenience, choice, or reliability.
RapidSSL® Wildcard Certificates help you secure multiple subdomains with one low-cost SSL certificate issued to *.yourdomain.com. Protect your customers' personal data with up to 256-bit encryption. Automated domain control validation makes site authentication a breeze. At RapidSSL, we believe in providing the SSL protection you need at a competitive price.
Secure your domain and all same level subdomains fast. GeoTrust QuickSSL Premium Wildcard certificates are one of the quickest ways to start protecting all your subdomains on a single certificate. Our automated email authentication process means you get your certificate in minutes. With QuickSSL Premium wildcard certificates, you get unlimited subdomains and on an unlimited number of servers - one certificate that will adapt as your business grows.
Simplify certificate management with the convenience of a Wildcard certificate. GeoTrust® True BusinessID Wildcard certificates allow you to secure multiple subdomains on a single certificate, reducing management time and cost. Whether it's your company's home page or your mail server's hostname, protecting sensitive information is your goal — and it's our goal too.
Business-class SSL—only better. When it comes to selecting SSL security for your business, you have a lot of choices. With GeoTrust, the decision is easy. GeoTrust® True BusinessID SSL certificates let your customers know that your site is trustworthy and that you take their security seriously enough to get your certificate from a globally trusted certificate authority.
Protect your website or email traffic with industrial-strength 2048-bit encryption with a Secure Site SSL Certificate.
With Secure Site Pro SSL offer high-assurance certificate with added features for comprehensive website security.
Make a strong security statement with the green address bar. GeoTrust® True BusinessID with EV (Extended Validation) is our premium business-class SSL security product, visually confirming the highest level of authentication available among SSL certificates. The green bar says it all. Web site visitors really notice when the address bar turns green in their high-security browsers and the organization field starts to rotate between your business name and GeoTrust.
Secure Site Extended Validation (EV) SSL Certificates protect your most valuable assets–your customers and your brand–from phishing scams and online fraud.
Secure Site Pro EV SSL is the highest authentication with extra features for comprehensive website security and robust protection against identity-targeted attacks.
多年期证书让您以单一折扣价购买两到三年的 SSL 证书覆盖范围. 当您购买多年期 SSL 证书时，您将锁定一个价格，最多可享受 3 年的保障。
最初，您将收到一个在证书颁发机构浏览器论坛允许的最长期限内有效的证书（1年零 1 个月），有权在订单期间无限次重新颁发证书。
自动补发将在整个期限内自动进行，以确保您的网站得到持续保护。
例如，2 年 SSL 证书订单的工作方式如下：
SSL证书必须定期重新验证。最长证书有效期为13个月，需要每年重新验证。
ssl证书允许在Internet上进行数据加密，并允许数据从Web服务器安全地传输到浏览器。使用SSL，您的网站可以使用https协议，并在最终用户的Web浏览器中显示一个挂锁，以指示连接是安全的.
SSL证书是Internet的重要组成部分。它们不仅可以加密您的计算机与网站所在服务器之间的通信，而且还可以验证网站是否为其声称的那样.
SSL证书基于三种不同的审查级别。域验证（dv）、组织验证（ov）和扩展验证（ev）。证书类型之间的主要区别与证书颁发机构RapiDSSL、GeoTrust和Symantec为颁发证书而需要和验证的信息有关。更高级别的证书需要更多信息，并且通常显示在浏览器栏中。例如，ev ssl将浏览器栏变为绿色，并向访问者显示组织名称，以产生更多信任.
通配符ssl证书提供与其他ssl证书相同的加密和身份验证功能，但也可以应用于网站的无限数量的子域。通配符SSL证书支持根域（example.com）及其子域. 了解更多
EV（扩展验证）证书是可用的 SSL 中最高级别的，为您的网站提供最大的可信度和信任。 EV 可确保消费者的个人和财务信息在身份验证的最高级别下得到保护。此外，还会执行其他验证，例如企业机构记录检查、申请人联系信息和业务是否存在至少 3 年等。EV 证书最适合用于业务关键的网页。
