HTTPS protocol by default

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Another important fact is that if you have your website on both HTTP and HTTPS, Google will prefer the secure version, i.e. HTTPS . In this case, the problem is that search engines would consider both versions of the website as duplicates, so this problem must be solved anyway, preferably by redirecting using canonicalization .

If you finally decide to switch to HTTPS, you need to lithuania phone number data add an HTTPS website variant in Google Webmaster Tools and, after an automatic check, check crawl errors and index status. This will make it easy to find out which pages are not redirected and edit them before the search engine notices.

Anyway, I wouldn't rely solely on Google Webmaster Tools , but you can also use a crawling program such as ScreamingFrog , where you insert a list of old http addresses, and the result will be a new list of unredirected pages.

List
In July 2015, Seznam issued a statement that it does not recommend migrating websites from HTTP to HTTPS. The problem is that it does not manage to transfer all off-page factors , and at the time of writing this article, this problem has not been solved. In any case, Seznam developers promised that this problem would be solved during February 2016 .

Direct support for the List declares :

"It still applies that you will make it easier for us to process your website if you redirect all your URLs from the HTTP version with a permanent redirect (HTTP 301) to their HTTPS followers, including images."

Another recommendation from Seznam is to use canonicalization if you want to use both HTTP and HTTPS versions of your website. You can read more about this redirection in the Seznam help.