How to Match a Website Certificate With Its True Owner

نام نویسنده:
 پنجشنبه 21 مرداد 95 ساعت: 17:54:03

Sometimes, though, you might see a website certificate error letting you know that the website’s certificate belongs to another page.
If you see these all the time, you might have an issue with your system’s clock being off or you might have some malware that needs cleaning, but if you only see it sometimes, it’s worth examining to understand the error.
To view any website’s certificate in any browser (except Edge), click the green padlock icon when visiting a page using HTTPS. Choose Details > View Certificate on Chrome, click the arrow and choose More Information on Firefox, and choose View Certificates on IE. This allows you to view who the certificate was assigned to.
However, one certificate can be valid for more than one URL name. If you view YouTube’s certificate, it shows as issued to By digging into the Detailstab in any browser and finding Subject Alternative Name, you can see other names that the certificate is valid for. So, Google’s cert is valid for,, and, for example.
Using this information to your advantage, you can find out if an invalid certificate warning is coming from a legitimate website name change (maybe Hewlett-Packard changes their name to Hewlett-Jackson and the site changes from to, or if it’s a cert for some shady URL across the world.


منبع: makeuseof

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