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Is HTTP/2 on the roadmap for Googlebot? 1 Recommended Answer 5 Replies 5 Upvotes
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This page is served with a server that only uses HTTP/2: https://rwserve.readwritetools.com/  HTTP/1.1 is not supported.

I know that Googlebot cannot handle HTTP/2 sites right now, since I can confirm that using curl. On the other hand, the Fetch API does properly reach the site. I'm guessing that Googlebot uses a proprietary HTTPS client to do its work, one that does not handle ALPN per  RFC 7301 specification 

Is HTTP/2 on the roadmap for Googlebot?
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Joe,
 
yes it is. For now you can use SPDY (pre-HTTP/2) with support of NPN (no RFC) that is supported from Chrome41.
 
One day Chrome41 will be updated and suddenly you can get HTTP/2 and ALPN. But no timeframe when this happen yet.
 
Regards,
 
Peter
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I wonder if someone from Google would care to elaborate?

This post,  from October of 2017,  says that it has been in the works since 2015:  https://moz.com/blog/challenging-googlebot-experiment "Does Googlebot Support HTTP/2?"
"At the moment, Google doesn’t support HTTP/2-only crawling (...) We are working on that, I suspect it will be ready by the end of this year (2015) or early next year (2016) (...) 

I deploy HTTP/2-only sites using https://rwserve.readwritetools.com/ that works beautifully in all browsers and many crawlers, but sadly not Googlebot. I'd like to tell my customers a more definite answer than "someday".
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How do we enable http 2  &  HTTP/1.1 at the same time? My server won't show HTTP/1.1. I am getting lots of search console errors:

"Page fetch Failed: Crawl anomaly"
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me as well...
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