HEATKEYS

Position	Website	Change	Thumbnail
1	w3schools.com - W3Schools Online Web Tutorials HTML XHTML CSS JavaScript XML XSL ASP SQL ADO VBScript Tutorials References Examples	0
2	validator.w3.org - The W3C Markup Validation Service W3C	0
3	jqueryvalidation.org - jQuery Validation Plugin | Form validation with jQuery – this site is a work in progress	0
4	regexlib.com - Regular Expression Library Regular Expression Library provides a searchable database of regular expressions. Users can add, edit, rate, and test regular expressions.	0
5	gist.github.com - Gist - GitHub	0
6	stackoverflow.com - Stack Overflow	0
7	freeformatter.com - Free Online Tools For Developers - FreeFormatter.com Online tools for developers, including formatters (JSON, XML, HTML, SQL, etc.), minifiers (JavaScript, CSS), validators, compactors and many more!	0
8	developers.pinterest.com	0
9	yiiframework.com - Yii Framework: Best for Web 2.0 Development Yii is a high-performance component-based PHP framework best for Web 2.0 development.	0
10	owasp.org - OWASP	0
11	commons.apache.org - Apache Commons - Apache Commons	0
12	myphpform.com - PHP form - tutorial and articles on creating PHP forms	0

I have no idea. Please, refresh tomorrow ;)

Site	Traffic	Engagement
w3schools.com	21.7%	0x
stackoverflow.com	20.7%	0x
mathiasbynens.be	16.9%	0x
webpronews.com	16.5%	0x
oreilly.com	8.4%	0x
Other	15.8%	0x

Top Advertisers for url validation

Site
godaddy.com