A free certificate is a free DV SSL certificate, which can protect at most one complete domain name (for example, www.landui.com or weixin.landui.com, each subdomain is considered as a complete domain name), and wildcards are not supported. Free SSL certificates only verify domain name information. Paid SSL certificates mainly include paid DV SSL certificates, enterprise OV SSL certificates and enhanced EV SSL certificates. OV SSL certificate and EV SSL certificate need to do strict identity verification for applicants, and need to provide credible identification. Tianwei Chengxin provides many types of SSL certificates, which have the functions of not eavesdropping, not changing, not denying and not impersonating. What is a free certificate and what is a paid certificate
A free SSL certificate is also called a self-signed SSL certificate. Generally speaking, the application for this certificate is free, and only the transmitted information is encrypted, which cannot prove the true identity of the website and effectively improve the trust of users. Only suitable for personal websites or websites with low security requirements.
there are three main types of paid SSL certificates, namely domain-name DV SLL certificate, enterprise-type OV SSL certificate and enhanced EV SSL certificate. Enterprise-type OV SSL certificate and enhanced EV SSL certificate need strict identity verification for applicants, and need to provide credible identification, which has significantly improved the user's trust. The difference between free and paid certificates
1. Different types of certificates are supported
Generally, free SSL certificates only support DV SSL certificates, which are only used to provide the most basic authentication, and are suitable for human websites or websites with low security requirements; The paid SSL certificate supports DV SSL, OV SSL and EV SSL certificates, and provides a high level of security protection, which is suitable for websites with high security requirements.
2. The validity period of supported certificates is different
This is easy to understand. Free SSL certificates usually only support for three months, and if the period expires, you need to purchase other certificates; Generally, the paid SSL certificate can support 13 months, with a relatively long service period, and once it expires, you can choose to renew it, which will not affect the normal operation of the website.
3. Different technical guidance services are supported
Generally, paid SSL certificates will provide professional service support, from application to installation to use, 7 24 responding to users' inquiries and solving problems in time. These are high-quality official services that users who use free SSL certificates cannot enjoy.
4. Customers' trust is different
After the paid SSL certificate is installed on the website, the website will display a green icon, and if it is an EV SSL certificate, it will also display the name of the enterprise, which can enhance customers' trust in the website to some extent; If you install a free SSL certificate, the URL will not show these.
so in the end, generally speaking, it is more appropriate to choose paid SSL certificates. Anxin certificate provides a variety of paid SSL certificates with good quality and low price. There are SSL digital certificates from many global authoritative CA institutions such as Symantec, GeoTrust, COMODO and GlobalSign to choose from, and the quality is guaranteed and you can use them with confidence.
Free certificates are generally domain-name certificates, which are usually issued automatically, and there is no compensation guarantee. The paid certificate has the protection of compensation, and the encryption level is higher. Generally, it will add the function of verifying the identity of the enterprise. The enhanced certificate also has the anti-counterfeiting function, and it has a unique green address bar and the company name display in the address bar, so it can help the website enhance its image and increase the website experience.