Robo

WP-Thumbnail is a simple and neat WordPress Plugin that not only allows you to use a short-code to generate dynamic 
screenshot of webpages in your posts but also takes a realtime snapshot of the served webpage and saves a link to it 
on the page itself that too without burdening the servers. This helps in optimizing search results on Google by adding 
a thumbnail to the left of the search result snippet and makes shared posts more attractive, with a relevant thumbnails, 
on Social Sites like Facebook.
For more information, check out <a href="http://wp-thumbnail.robocasters.com/" rel="nofollow ugc">wp-thumbnail.robocasters.com</a>.
Features include:
<ul>
<li>Short-Code – The plugin has a shortcode that enables you to add dynamic screenshots of webpages to your post.</li>
<li>Meta Thumbnail – It uses meta name thumbnail and adds the live screenshot in it for being displayed as a thumbnail in Google Searches.</li>
<li>PageMaps – PageMaps is a structured data format that provides Google with information about the data on a page. It enables website creators to embed data and notes in webpages.</li>
<li>Facebook OG:Image – It sets image with content og:image to the top priority for being used as a Facebook Post thumbnail.</li>
<li>WP-Thumbnail Class – It adds a WP-Thumbnail class that helps image to be used for all other sharing purposes.</li>
</ul>

WP-Thumbnail

'Changing the way you share', giving you an experience you have never had before...

nikitanovikov

puravida1976

devdokimov

Dan Harrison

STW Support

This plugin allows any WordPress user to easily add thumbnail previews of websites right in the content of their posts using a simple <code>[stwthumb]http://www.yourwebsite.com[/stwthumb]</code> format. Loads of examples are available within the plugin documentation (you’ll see it when you activate the plugin).
The plugin requires a free or paid account from the thumbnail provider service <a href="https://shrinktheweb.com/" rel="nofollow ugc">ShrinkTheWeb.com</a>. No purchase is required to use the plugin or the free service.
Cool Features
<ul>
<li>Easily embed web page screenshots anywhere using shortcode!</li>
<li>So simple to use with TinyMCE shortcode helper!</li>
<li>Supports caching screenshots locally</li>
<li>Plenty of examples in the plugin documentation</li>
<li>Custom screenshot image quality</li>
<li>Enable mouseover (hover) screenshot previews</li>
<li>Alt and Title attributes support via shortcodes</li>
<li>Custom filename option support via shortcode for SEO purposes</li>
</ul>
Supported ShrinkTheWeb PRO features
<ul>
<li>Display “Inside Pages” or full URLs (Upgrade required) 
…rather than just the homepage of a domain.</li>
<li>Full-Length screenshot captures (Upgrade required)</li>
<li>Custom Size screenshot captures (Upgrade required)</li>
<li>Custom Browser Resolution (Upgrade required)</li>
</ul>
Take a look at ShrinkTheWeb for more information <a href="https://shrinktheweb.com/" title="Automated Website Preview Provider" rel="nofollow ugc">Shrink The Web</a>.
<h4>Donate</h4>
Did this plugin get you out of trouble? Please consider <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=ZBNAT7HJACUAG&lc=US&item_name=ShrinkTheWeb&no_note=0&cn=Add%20special%20instructions%20to%20the%20seller%3a&no_shipping=1&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted" rel="nofollow ugc">making a small donation</a> to thank the developer for their time.

ShrinkTheWeb (STW) Website Previews Plugin

This plugin accesses the ShrinkTheWeb API to automatically replace special tags in posts with website screenshots, where desired.

WP-Thumbnail vs ShrinkTheWeb (STW) Website Previews Plugin