Twitter card not working

问题:

My meta tags for twitter in site:

<meta property="twitter:card" content="summary_large_image">
<meta property="twitter:site" content="....">
<meta property="twitter:title" content=".....">
<meta property="twitter:description" content="test description">
<meta property="twitter:image" content="....">

I even tried with twitter:image:url and also allowed twitter bot in robot.txt but no luck till now

回答1:

May I know where did you test if the twitter card is working or not? Did you check with https://cards-dev.twitter.com/validator?

Also, sometimes the placement of the meta tags do matter, place them early in the head section but after the og (open graph) meta-tags.

Let me know what error you get(if any) on the card validator.

回答2:

Use name instead of property in you meta tags Like :

<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="....">
<meta name="twitter:title" content=".....">
<meta name="twitter:description" content="test description">
<meta name="twitter:image" content="....">

回答3:

If none of the above works, try changing twitter:image to twitter:image:src and make sure that the image fulfills the size requirements:

smallest size supported

• summary: 144x144px
• summary_large_image: 300x157px

Largest size supported

In both cases the maximum is 4096x4096px and at most 5MB.