HEATKEYS

Position	Website	Change	Thumbnail
1	validator.w3.org - The W3C Markup Validation Service W3C	0
2	relsoftware.com - Link Checker, Web Link Validator Web Link Validator is a link checker and site management tool that helps webmasters automate the process of website testing.	0
3	valet.webthing.com - Site Valet Site Valet offers a uniquely comprehensive website monitoring service together with powerful online tools.	0
4	html.validator.pro - Online Multipage Validator | No Download | Validate Entire Website This is a free, online HTML validator. Instead of validating one document at a time, enter a Starting URL and our robot does the work	0
5	lithopssoft.com	0
6	bryanhadaway.com - Bryan Hadaway's Web + Tech Blog	0
7	echolink.org - Introducing EchoLink	0
8	thefreecountry.com - thefreecountry.com: Free Programmers' Resources, Free Webmasters' Resources, Free Security Resources Free programmers	0
9	jsonformatter.curiousconcept.com - JSON Formatter & Validator The JSON Formatter & Validator helps debugging JSON data by formatting and validating JSON data so that it is easily read by human beings.	0
10	feedvalidator.org - Feed Validator for Atom and RSS	0
11	ivalidation.net	0
12	stackoverflow.com - Stack Overflow	0
13	human.cornell.edu	0
14	teamtreehouse.com - Learn Web Design, Web Development, and iOS Development - Treehouse	0

I have no idea. Please, refresh tomorrow ;)

Site	Traffic	Engagement
w3.org	67%	0.9x
relsoftware.com	9.7%	0.5x
brokenlinkcheck.com	5.1%	0x
lithopssoft.com	3.7%	0x
webthing.com	3%	0x
Other	11.5%	0x

Top Advertisers for link validation

Site
relsoftware.com
illumit.com
brokenlinkcheck.com
powermapper.com
ssw.com.au