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html meta-tags head

Html head meta tags explanation required?

发布于 2020-03-29 21:00:41

I have seen the following meta tags in many places can anyone explain that are these necessary and how? What do they exactly mean?

<meta name="hdl" content="">
<meta name="lp" content="">
<meta name="byl" content="">
<meta name="utime" content="">
<meta name="ptime" content="">
<meta name="pdate" content="">
<meta name="dat" content="">
<meta name="CG" content="">
<meta name="SCG" content="">
<meta name="PT" content="">
<meta name="PST" content="">
<meta name="CN" content="">
<meta name="CT" content="">
<meta name="genre" itemprop="genre" content="">
<meta name="url" itemprop="url" content="">
Questioner
user3872505
Viewed
29
PaulS 2020-01-31 18:29

Take a look here: https://wiki.whatwg.org/wiki/MetaExtensions Keep in mind, custom meta tags can be set and don't necessarily have a "general" meaning.