Same error as some people were having in 2019 - a temporary bug?
SniCertificate::CertificateInvalidError: Unable to verify challenge
I have a static site hosted on netlify. Today I changed my domain from .com to .tk. After setting up the DNS stuff, in Domain Management I got an error like SniCertificate::CertificateInvalidError: Unable to verify challenge for *.foobar.tk. The details below shown that the previous .com domain is still used when trying to renew the Let’s Encrypt certificate.
hi @wlnirvana - i have merged these two threads together as this is clearly the same issue. can you tell us your netlify site and your domain name?
Hi @PhilStollery! Welcome to netlify community.
This should be working now! We need to fix the messaging on that page. I am not convinced we were “unable to verify challenge”. 
Hi, @tenshis, and welcome to the Netlify community site. 
I’m showing this SSL certificate was updated at 12:22 UTC today. Is it working for you now?
If there are other questions or concerns, please let us know.
I just encountered the same issue with the domain managed through Netlify. Any ideas how to resolve this issue?
*.mrkaluzny.com, mrkaluzny.com
Hi!
I have the same problem as stated before. I can’t even access the domain https://rangbagen.se.
I have had the website up for 3 months and then it couldn’t renew the certificate, and now I can’t even access the site.
Do you guys have any idea what the problem can be?
hi there, i just responded to you on your other thread. I am going to close this one to keep conversations from getting like 