To view the security certificate of the website in the Chrome browser, first click the lock icon in the address bar; secondly select the "Certificate" or "Certificate Valid" option to enter the details page; focus on the three key information "Issued to", "Validity Period" and "Issuing Organization" in the certificate window; if there are problems with the certificate, such as expired, mismatched, or untrusted, the lock icon will turn red or gray and prompt "unsafe". When encountering warnings such as "Connection is not a private connection", ordinary users should avoid continuing to access, while website administrators need to check the certificate configuration problem.
It is actually quite simple to open a Chrome browser to view the security certificate of the website, but many people may not know how to operate it. If you want to confirm whether it is safe when you visit a website, especially before entering personal information or payment information, it is a good habit to view an SSL certificate.
Click on the address bar lock icon
When you open an HTTPS website, a lock icon appears on the left side of the Chrome address bar. Clicking on this lock will bring up a small window showing "Connection Security" or similar information. Click again at this time, select options such as "Certificate" or "Certificate Valid" (different systems or versions may vary slightly), and you will see the certificate details of the website.
In this certificate window, you can see:
- Which domain name is issued to
- Which agency issues it
- How long is the validity period
- Is there any encrypted connection and other information?
If there is a problem with the certificate, such as expired, mismatched, or untrusted, the lock icon may turn red or gray and prompt "unsafe".
View certificate details
After entering the certificate details page, you will see multiple tab pages, such as "General", "Details", "Issuer", etc. Among them, the "General" page will display the basic status and purpose of the certificate; the "Details" page will list all technical details, such as public keys, fingerprints, extended purposes, etc.
If you don’t understand these technical parameters very well, you should pay attention to at least a few key points:
- Issued to : Make sure the domain name is consistent with what you are visiting and prevent man-in-the-middle attacks.
- Validity period : Confirm that the certificate has not expired, otherwise it means that the website may not update the security settings in time.
- Issuing institution : Certificates issued by well-known authoritative institutions are more credible. If they are self-signed certificates, you should pay more attention.
Some websites may use wildcard certificates, such as *.example.com , which is fine, as long as the currently visited subdomain is included.
Pay attention to special circumstances and common errors
Sometimes you may encounter certificate warning pages, such as prompting "Your connection is not a private connection" or warnings with white characters on red background. This situation usually means that there is a problem with the certificate, which may be that the certificate is expired, the domain name is mismatched, or the website uses an untrusted certificate authority.
If you are an ordinary user, it is recommended not to continue visiting such websites, especially those involving login or payment. If it is a website you manage yourself, you need to contact your hosting service provider or certificate provider to check whether the certificate is configured correctly and whether there are any problems such as missing intermediate certificates.
Basically that's it. The whole process is not complicated, but it is very useful when you need to confirm the security of the website.
The above is the detailed content of How to view website security certificate in Chrome. For more information, please follow other related articles on the PHP Chinese website!
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