Why is a site no longer being indexed by Google after HTTPS switch?

[ATMOSMarketing56]

A client of ours recently had a new site built and made the switch to HTTPS. We made sure to redirect all of the HTTP pages to HTTPS and submitted a new sitemap to Google. GWT says the sitemap was submitted successfully but only 4 pages have been indexed where there should be over 2000. This has led to a plummet of organic traffic and we can't find the issue. Has anyone else had issues/success with doing a HTTPS switch that knows how to fix this problem?

[kwoolf]

There are so many things to check here. I imagine you've checked your server redirects, your host settings, your DNS, your robots.txt, your internal links, your canonical URLs, and your SSL cert. settings to make sure there are no problems and nothing is being blocked.

After that, you'll need to give this some time. Google might need to crawl your site again for your changes to get noticed. Post your URL so we can all take a look to see if there is anything else going on here.

[JaneCopland]

Hi there,

Just checking in to see if you looked through the things Kevin mentioned and if you are still experiencing the indexation problem after the HTTPS switch?

Cheers,

Jane