How to deal with website security certificate errors? Practical solution steps to share

in the process of browsing a web, many people have encountered the prompt that the browser pops up the website security certificate error. At this time, the page either cannot load normally or will be marked as an insecure site. Website security certificate errors will not only affect the normal access experience of users, but also may mean that the website is at risk of being tampered with, counterfeited, or the certificate itself has expired, misconfigured, etc. This article will share practical solutions from the perspectives of error troubleshooting, browser-side repair, server-side processing, etc., to help users in different scenarios quickly resolve the troubles caused by website security certificate errors.

, first troubleshoot the root cause of the website security certificate error?

want to solve the website security certificate error efficiently, we must first clarify the specific reasons for the error, and different root causes correspond to different solutions.

1, check the browser error message details

different browsers have slightly different prompts for website security certificate errors, such as Chrome will show "Your connection is not a private connection", Firefox will mark "Certificate is not trusted". Click the "Details" option in the prompt, you can usually see more specific reasons, such as certificate expiration, domain name mismatch, certificate is not trusted, etc. This is the first step of investigation.

2, check the system time of the local device

many people will ignore the impact of system time on the certificate, the website security certificate has a fixed valid period, if the local device system time and the actual time deviation is too large, such as setting in advance to a few years later, or lag for a long time, the browser will determine that the certificate has expired or not effective, and then trigger the website security certificate error prompt.

Second, how to repair the browser site security certificate error?

if the certificate of the website itself is normal, but there is a recognition problem on the browser side, you can fix the website security certificate error through the relevant settings of the browser.

1, clear browser cache and certificate cache

browser will cache the certificate information of the visited website. When the website updates the certificate, the old cache may cause identification conflicts and cause website security certificate errors. Users can go to the browser's settings interface, find the option to clear browsing data, tick "Cached pictures and files" and "Website data", and restart the browser after clearing and try to access.

2, manually import or trust website certificates

if it is a legitimate certificate issued by a niche organization, it may not be trusted by the browser by default. At this time, you can find the hidden option of "Continue Access" on the error prompt page. After entering the website, download the certificate file, and then enter the browser's certificate management interface. Import the downloaded certificate into the "Trusted Root Certificate Authority" list. Subsequent visits will no longer trigger the website security certificate error prompt.

How does the server solve the website security certificate error?

for website operation and maintenance personnel, website security certificate errors mostly stem from server-side certificate configuration problems, which need to be solved from the certificate itself and server settings.

1, check and update expired website certificates

website security certificate has a clear valid period, generally ranging from 1 year to 3 years, operation and maintenance personnel can check the expiration time of the certificate through the background of the certificate authority or the certificate management module of the server. If the certificate has expired, you need to apply for a new website security certificate from a regular institution in time. After completing the purchase and verification, replace the old certificate on the server.

2, fix the matching configuration of certificate and domain name

part of the website security certificate error is because the domain name bound to the certificate does not match the actual visited domain name. For example, the certificate is applied for the www domain name, but the user accesses the domain name without www, or the certificate only covers the main domain name and does not contain subdomains. At this time, you need to apply for a wild-card certificate containing the corresponding domain name, or configure the correct domain name mapping on the server to ensure that the certificate matches the visited domain name exactly.

four, how to avoid the site security certificate error occurs again?

solve the current website security certificate error, it is also necessary to take preventive measures to avoid similar problems from recurring.

1, open the certificate expiration reminder function

whether the user or the operation and maintenance personnel, can open the certificate expiration reminder. Regular certificate authorities will remind by email 1 to 3 months before the certificate expires, and website operation and maintenance personnel can also set up monitoring scripts on the server to monitor the valid period of the website security certificate in real time and prepare for renewal in advance.

2, choose a formal certificate authority

website security certificates issued by some informal institutions may not be trusted by mainstream browsers, which is easy to trigger website security certificate errors. It is recommended to choose formal service providers certified by international trust root institutions, such as Let's Encrypt, DigiCert, etc. The certificate compatibility of such institutions is better, which can effectively reduce the probability of errors.

To sum up, the solution of the website security certificate error needs to be processed in different scenarios. Ordinary users can check the local system time first, clean up the browser cache, and manually trust the legal certificate if necessary; website operation and maintenance personnel should focus on the valid period of the certificate, Domain name matching degree and other server-side configurations. As long as you follow the corresponding steps to check and deal with them one by one, you can quickly solve the website security certificate error and ensure the security and smoothness of web page access.