Helpful Content
Helpful content is content made primarily to satisfy people with useful, reliable, original information rather than to manipulate search rankings.
Glossary A-Z
Glossary Terms Starting With H
Browse glossary definitions that start with this letter, then follow topic tags and related paths into adjacent concepts.
A-Z index
Use the letter index for quick lookup, then follow tags to adjacent concepts.
H
3 terms
Hreflang
Hreflang is a signal that tells search engines about language or regional variants of equivalent pages.
HTTP Status Code
An HTTP status code is the numeric response a server returns to explain what happened when a URL was requested.