Free SSL and cheap SSL introduction __HTTP2

Read the  ssl/tls feature introduction and level description   If you're a bit preface, then let's start with a cheap SSL practice practicing. The following describes some free and inexpensive SSL certificates, cheap SSL certificates are actually very cheap, the free SSL certificate will often add "free" or "complimentary" words are more valuable and browser compatibility has a certain problem, or the certificate chain too long. Free SSL Startssl.com ,startcom Company provides free Startssl (Class 1) certificate, valid for 1 years, after the expiration of the certificate can be free to renew, root certificate in addition to IE6 almost all support, the application has a certain degree of difficulty, the site has a certain review. However, there used to be the use of its certificate regardless of the server to do domestic and foreign have been Q things. CLOUDFLARE.COM&NBSP, an internationally renowned CDN manufacturer, now offers a free SSL certificate. The certificate provided is UNIVERSALSSL, Universal SSL, and the user does not need to request and configure certificates to be used by the certification authority to use the SSL certificate, you can save the cost of purchasing a certificate, but only in the case of CF acceleration to use. The certificate also does not support IE6. WOSIGN.COM&NBSP, Vauton is a home to provide SSL Certificate Services website, compatibility is already very high, its free SSL certificate application is relatively simple, online open, an SSL certificate can only correspond to a domain name, support certificate Status online query protocol (OCSP). Its root certificate is also widely supported by the major browsers. Chinese support certificate is easy to issue. Some people say it certificate backbone in the domestic speed, some people say it is a long certificate chain, slow speed, silly points are not clear. Letsencrypt.org, the major well-known network manufacturers jointly issued a free SSL certificate, in order to promote the way of HTTPS encryption is also broken heart. Issue more trouble, signed for three months, you can continue to renew. cheap SSL

Note: Many years can be cheaper to buy, search for a discount code may be cheaper. Ssls.com, agent of the major companies SSL certificate, the price is relatively cheap, the cheapest Comodo positivessl for 4.99 USD/year, RAPIDSSL for 8.99 USD/year, Positivessl multi-domain Universal Domain name certificate Support 1 00 domain names, 25.99 USD/year. Cheapsslsecurity.com, agent of the major companies SSL certificate, the price is more affordable, the cheapest Comodo positivessl for 4.99 USD/year, RAPIDSSL for 6.66 USD/year (Geely AH). Comodo Instant SSL ov Business Certificate sold for 26.18 USD/year. Gogetssl.com, agent of the major companies SSL certificate, the price of the economy, the cheapest Comodo positivessl for 5.25 USD/year, RAPIDSSL for 8.85 USD/year. Its commercial OV certificate, Comodo instantssl 23.22 dollars/year, is really cheap ah. Cheapsslshop This station is to use the RapidSSL. Various certificates are quite cheap, especially RapidSSL, 3 years every year as long as 6.1 knives seemingly, very affordable.

Namecheap, the famous domain name registration manufacturer also provides the SSL certificate, buys more expensive, buys/transfers the domain name or buys the host (buys one months) simultaneously buys the SSL only to need 1.99 US dollars/year. The way to save money is to buy a certificate as soon as it expires. Ha ha.