Awesome

Talk with us on Slack

<a href="https://slack.com/oauth/authorize?scope=commands&client_id=90891660039.191950558144"><img alt="Add to Slack" height="40" width="139" src="https://platform.slack-edge.com/img/add_to_slack.png" srcset="https://platform.slack-edge.com/img/add_to_slack.png 1x, https://platform.slack-edge.com/img/add_to_slack@2x.png 2x" /></a> - Easily share website screenshots within your Slack chat and more. <img src="https://github.com/letsvalidate/api/raw/master/letsvalidate-slack.gif" width="850" height="auto" alt="Screen record">

You can follow us on Twitter or subscribe to our newsletter for upcoming updates.

API for generating thumbnails of captured screenshots of websites.

/v1/thumbs/

Name	Default	Accepted Value	Description
url		Any valid URLs	Target URL (required), http(s):// prefix is optional
output	raw	raw, json	Output format (raw, json)
prettify	false	Any boolean values	Prettify JSON output
format	jpg	jpg, jpeg, png	Image format (jpg, png)
quality	100	1..100	Image quality
full	false	Any boolean values	Capture full page
size		t, s, m, l, x, og, o	The size of the thumbnail. Available predefined sizes: t - Tiny (90x68), s - Small (120x90), m - Medium (200x150), l - Large (400x300), x - Extra large (480x360), og - Recommended image size of Facebook's Open Graph protocol (1200x630), o- Original size, *widthxheight - Custom sizes
width	320	1..16383	The width of the thumbnail
height	240 (mobile: 568)	1..16383	The height of the thumbnail
mobile	false	Any boolean values	Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text autosizing and more
device		See the below list	Predefined user agent, viewport width & height, ...
viewportWidth	1200 (mobile: 412)	1..1600	The viewport width of the page
viewportHeight	1200 (mobile: 732)	1..1600	The viewport height of the page
viewport		widthxheight	The viewport width & height of the page
selector		CSS Selector	Capture DOM node
userAgent		Any valid user agents	Not yet implemented
delay		0..10	Not yet implemented

more options? open an issue

Example (command line):

$ curl -s https://api.letsvalidate.com/v1/thumbs?url=kontaktify.com > kontaktify.jpg

Example (web browser):

https://api.letsvalidate.com/v1/thumbs/?url=kontaktify.com

<details> <summary>Result:</summary> <img src="https://api.letsvalidate.com/v1/thumbs/?url=kontaktify.com" width="320" height="240" alt="Kontaktify Preview"> </details>

Example (json output):

https://api.letsvalidate.com/v1/thumbs/?url=kontaktify.com&output=json

<details> <summary>Result:</summary>

{
	"mime_type": "image/jpeg",
	"base64": "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",
	"width": 320,
	"height": 240
}

</details>

Example of using og size with the following HTML code.

<!-- Put additional og tags here -->
<meta property="og:image" content="https://api.letsvalidate.com/v1/thumbs?url=kontaktify.com&size=og" />

<!-- The same image also works for twitter card -->
<!-- Put additional twitter card tags here -->
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:image" content="https://api.letsvalidate.com/v1/thumbs?url=kontaktify.com&size=og" />

<details> <summary>A list of accepted devices:</summary>

galaxys5
nexus5x
nexus6p
iphone5
iphone6
iphone6plus
ipad
ipadpro
iphone4
ipadmini
nokian9
nokialumia520
nexus7
nexus6
nexus5
nexus4
nexus10
microsoftlumia950
microsoftlumia550
blackberryz30
blackberryplaybook
galaxynote3
galaxynoteii
galaxysiii
kindlefirehdx
lgoptimusl70
laptopwithtouch
laptopwithmdpiscreen
laptopwithhidpiscreen

</details>

API for analyzing technologies of websites.

/v1/technologies/

Name	Type	Default	Description
url	string		Target URL (required), http(s):// prefix is optional
prettify	boolean	false	Prettify JSON output

Example:

https://api.letsvalidate.com/v1/technologies/?url=kontaktify.com

<details> <summary>Result:</summary>

{
	"url": "https://www.kontaktify.com",
	"originalUrl": "http://kontaktify.com",
	"applications": [{
		"name": "BuySellAds",
		"confidence": "100",
		"version": "",
		"icon": "BuySellAds.png",
		"website": "http://buysellads.com",
		"categories": ["Advertising Networks"]
	}, {
		"name": "Carbon Ads",
		"confidence": "100",
		"version": "",
		"icon": "Carbon Ads.png",
		"website": "http://carbonads.net",
		"categories": ["Advertising Networks"]
	}, {
		"name": "CloudFlare",
		"confidence": "100",
		"version": "",
		"icon": "CloudFlare.svg",
		"website": "http://www.cloudflare.com",
		"categories": ["CDN"]
	}, {
		"name": "Facebook",
		"confidence": "100",
		"version": "",
		"icon": "Facebook.svg",
		"website": "http://facebook.com",
		"categories": ["Widgets"]
	}, {
		"name": "Google Analytics",
		"confidence": "100",
		"version": "UA",
		"icon": "Google Analytics.svg",
		"website": "http://google.com/analytics",
		"categories": ["Analytics"]
	}, {
		"name": "Google Font API",
		"confidence": "100",
		"version": "",
		"icon": "Google Font API.png",
		"website": "http://google.com/fonts",
		"categories": ["Font Scripts"]
	}, {
		"name": "Hotjar",
		"confidence": "100",
		"version": "",
		"icon": "Hotjar.png",
		"website": "https://www.hotjar.com",
		"categories": ["Analytics"]
	}, {
		"name": "Kontaktify",
		"confidence": "100",
		"version": "",
		"icon": "Kontaktify.png",
		"website": "https://www.kontaktify.com",
		"categories": ["Widgets"]
	}, {
		"name": "Nginx",
		"confidence": "100",
		"version": "",
		"icon": "Nginx.svg",
		"website": "http://nginx.org/en",
		"categories": ["Web Servers"]
	}, {
		"name": "React",
		"confidence": "100",
		"version": "",
		"icon": "React.png",
		"website": "http://facebook.github.io/react",
		"categories": ["JavaScript Frameworks"]
	}, {
		"name": "Twitter",
		"confidence": "100",
		"version": "",
		"icon": "Twitter.svg",
		"website": "http://twitter.com",
		"categories": ["Widgets"]
	}, {
		"name": "Twitter Bootstrap",
		"confidence": "100",
		"version": "",
		"icon": "Twitter Bootstrap.png",
		"website": "http://getbootstrap.com",
		"categories": ["Web Frameworks"]
	}, {
		"name": "Zepto",
		"confidence": "100",
		"version": "",
		"icon": "Zepto.png",
		"website": "http://zeptojs.com",
		"categories": ["JavaScript Frameworks"]
	}]
}

</details>

Notes

The current API rate limit is 100/1 calls/minute per client's ip address.
All generated thumbnails will be host CloudFlare CDN and serve over https, and without any watermarks.
Internally I use Wappalyzer for analyzing technologies of websites.
Currently for accessing the APIs no need any keys.
The thumbnailing handles all modern websites.
Using headless chrome for capturing screenshots.