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Talk with us on Slack

Add to Slack - Easily share website screenshots within your Slack chat and more. 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
Result: Kontaktify Preview

Example (json output):

https://api.letsvalidate.com/v1/thumbs/?url=kontaktify.com&output=json
Result: 
{
	"mime_type": "image/jpeg",
	"base64": "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",
	"width": 320,
	"height": 240
}

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" />
A list of accepted devices: 
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

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
Result: 
{
	"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"]
	}]
}

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.