网站SSL证书有什么用？企业网站必须安装吗—

很多企业在建站过程中，会接触到SSL证书、https加密这些专业词汇，不清楚其作用和必要性。现如今，**SSL证书已经是企业网站的标配**，几乎所有正规上线的官网都会安装部署，没有SSL证书的网站会被浏览器标记为“不安全”，严重影响用户体验和网站收录。今天详细解读SSL证书的核心作用、分类和安装必要性。
SSL证书的核心功能是实现网站数据https加密传输。传统http协议的网站，数据传输是明文传输，用户在网站填写的手机号、留言信息、咨询内容容易被窃取、篡改，存在极大的信息安全隐患。安装SSL证书后，网站数据全程加密传输，杜绝数据泄露、劫持、篡改风险，保障用户信息安全和企业网站数据安全，规避网络安全风险。
其次，SSL证书直接影响浏览器展示和用户信任度。未安装证书的http网站，打开后浏览器地址栏会显示红色不安全警示，大部分用户看到警示会直接关闭网站，严重流失客户。而部署SSL证书的https网站，地址栏显示安全标识，页面无风险提示，能够快速提升用户信任感，降低网站跳出率，提升品牌专业形象。
从SEO优化角度来看，SSL证书是搜索引擎的基础加分项。百度、搜狗、头条等主流搜索引擎，优先收录https加密网站，对http不安全网站降低收录权重、限制排名展示。没有SSL证书的网站，大概率出现收录困难、排名靠后、流量低迷等问题，无法实现线上获客。想要网站正常优化引流，安装SSL证书是基础前提。
除此之外，SSL证书是平台对接的必备条件。企业网站想要对接微信、支付宝、小程序、公众号挂载、广告投放、第三方接口，都必须要求网站为https加密协议，无证书网站无法完成对接，限制企业线上营销渠道拓展。
SSL证书分为免费域名证书和付费企业证书，普通展示型企业网站，免费证书即可满足需求，足够保障网站安全和优化需求；商城网站、支付型、交易型网站，建议选择付费高级证书，安全等级更高，适配交易场景。总而言之，建站必须安装SSL证书，是合规运营、流量获取、品牌信任的基础保障。
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网站SSL证书有什么用？企业网站必须安装吗

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