根據 Google 近日官方網誌，網站有安裝 SSL certificate 可能對 SEO 有所得益。
根據 Google 網誌
We’ve also seen more and more webmasters adopting HTTPS (also known as HTTP over TLS, or Transport Layer Security), on their website, which is encouraging.
For these reasons, over the past few months we’ve been running tests taking into account whether sites use secure, encrypted connections as a signal in our search ranking algorithms. We’ve seen positive results, so we’re starting to use HTTPS as a ranking signal. For now it’s only a very lightweight signal — affecting fewer than 1% of global queries, and carrying less weight than other signals such as high-quality content — while we give webmasters time to switch to HTTPS. But over time, we may decide to strengthen it, because we’d like to encourage all website owners to switch from HTTP to HTTPS to keep everyone safe on the web.
詳情可參閱
http://googlewebmastercentral.blogspot.com/2014/08/https-as-ranking-signal.html
客人可以考慮加裝 SSL 至自已網站上。(需要額外費用作 SSL 證書及專用 IP )
此外，SSL 數碼證書可以分為標準（域名認證 domain validated）和 EV（伸延認證 extended validation）。
域名認證數碼證書是最簡單的 SSL ，它是一種低成本的 SSL ，透過域名 WHOIS (或 FTP) 認證，通常需要在1 – 2個工作日內處理
EV SSL（伸延認證 SSL）需要對申請人機構進行嚴緊驗證，並涉及較多成本。然而，當發佈和安裝後，訪問者的瀏覽器的網址列會變為綠色（也稱為 green bar）。 SSL 刻有申請人機構名稱，通常對網站訪問者具有更高的信任。例如，我們的主網站（https://www.website-solution.net）採用了 EV SSL。
現時你瀏覽的網站 (https://kb.website-solution.net) 有 domain-validated SSL 傳輸加密保護．
