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Protonotes: HTML prototyping collaboration tool. — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Web Design And Html →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
proto.io ↗	71 match 1 shared topics	Proto.io - Prototyping for all	United States~ en	web-design-and-html	robotsllmsaihumans	emailphone	none
protoio.com ↗	71 match 1 shared topics	Proto.io - Prototyping for all	United States~ en	web-design-and-html	robotsllmsaihumans	emailphone	none
ccbooth.com ↗	69 match 1 shared topics	Creator Collaboration Booth	en	web-design-and-html	robotsllmsaihumans	emailphone	none
prototypte.com ↗	66 match 1 shared topics	PROTOTYPTE	en	web-design-and-html	robotsllmsaihumans	emailphone	none
prototypekitcourse.com ↗	65 match 1 shared topics	GOV.UK Prototype Kit Bootcamp – Adam Silver	en	web-design-and-html	robotsllmsaihumans	emailphone	partial · 1
protontheme.com ↗	65 match 1 shared topics	Home - Protontheme	en	web-design-and-html WordPress WooCommerce	robotsllmsaihumans	emailphone	none
sitespo.com ↗	65 match 1 shared topics	Sitespo - Free Web Design Inspiration & Resources	en	web-design-and-html	robotsllmsaihumans	emailphone	none
protoship.io ↗	64 match 1 shared topics	Protoship	en	web-design-and-html	robotsllmsaihumans	emailphone	none
cssnamingconventions.com ↗	64 match 1 shared topics	CSS Naming Conventions	en	web-design-and-html	robotsllmsaihumans	emailphone	none
gcwebd.com ↗	64 match 1 shared topics	Small Business Websites in Bryan & College Station \| Glass Canvas Web Design	en	web-design-and-html	robotsllmsaihumans	emailphone	none
css-loaders.com ↗	64 match 1 shared topics	CSS Loaders: A collection of more than 600 loading animations	en	web-design-and-html	robotsllmsaihumans	emailphone	none
cssgenerator.org ↗	64 match 1 shared topics	CSS Generator Tool - CSS Demonstration and Generation	en	web-design-and-html	robotsllmsaihumans	emailphone	none
vollenden.com ↗	64 match 1 shared topics	VOLLENDEN PRODUCTIONS Inc. :: conecting you through the web	en	web-design-and-html	robotsllmsaihumans	emailphone	none
myhorizon.dev ↗	64 match 1 shared topics	Purpose Website UI Kit - Purpose is a unique and beautiful collection of UI elements that are all flexible and modular. A complete and customizable solution to building the website of your dreams.	en	web-design-and-html	robotsllmsaihumans	emailphone	none
ccinspire.com ↗	64 match 1 shared topics	CC inspire \| Website Design & Creative Inspiration \| Bristol, Rhode Island	en	web-design-and-html	robotsllmsaihumans	emailphone	none
integrationwebsite.com ↗	64 match 1 shared topics	WebsiteIntegrations - Integration & Design Services	en	web-design-and-html phpBB	robotsllmsaihumans	emailphone	none
provenbyusers.com ↗	64 match 1 shared topics	UX Testing & Research Tools \| Proven By Users	en	web-design-and-html	robotsllmsaihumans	emailphone	none
cssanimation.rocks ↗	63 match 1 shared topics	CSS Animation - Free CSS tutorials and guides - CSS Animation	en	web-design-and-html	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.