Is it possible to use SEOTools to check expiration dates of https SSL certificates. We have a spreadsheet of about 50 https sites we need to keep track of expiration dates for.
You could use this website: https://www.sslshopper.com/ssl-checker.html#hostname=tessin.se
Using a function like XPathOnUrl you could scrape the "The certificate will expire in 438 days." and then RegExpFind to get the number.