Google’s recent announcement has stated that forms on web pages over HTTP will be classed as ‘not secure’ in Chrome from October. Now is the time to make the switch to HTTPS to avoid being shown as “not secure” in Chrome 62.
There are a number of beneficial factors in changing to HTTPS, namely a unique SEO opportunity which if implemented in the correct way can increase your website rankings.
The process of moving to HTTPS will alert Googlebot to recrawl the majority of your URLs.
Googlebot has its own method for identifying and prioritising which URLs to recrawl; however, when a move to HTTPS is detected, it will temporarily increase the crawl rate in an attempt to crawl as many URLs as possible within a short time frame. This is a unique opportunity to improve your website’s signals in the Google Index.
It would be an SEO’s dream if Googlebot could recrawl their entire website (on the same domain/hostname) after implementing SEO improvements. However, the move to HTTPS will present a unique opportunity to implement some major SEO improvements right before the Googlebot recrawl.
If you complete these changes before the end of October please allow time for the status to change and your website will reap the benefits with renewed and improved SEO signals in the Google index.