similar sites

Browse

Pricing AI Report

Tools

🚀Submit Your Site to AIPush your URL to AI search engines 🛰️AI Bot ObservatoryEvery AI crawler & who blocks it 📇AI Crawler Database900+ AI user agents + robots.txt gen ⚖️AI Crawler ComparisonCompare two AI crawlers head-to-head 💰AI Licensing / Pay-Per-CrawlWho can charge AI crawlers — Pay-Per-Crawl 🎛️AI Robots.txt Policy BuilderGoal-based robots.txt (cite me, don't train)🤖AI Crawler CheckerSee which AI bots your site blocks 🎯AI Readiness CheckerScore your site 0–100 for AI 🔎Similar Site SearchFind websites like any domain 🔗Backlink CheckerWho links to any site — free All tools →

Toplists Browse free →

Sites similar to signifying-nothing.com

Signifying Nothing alternatives & similar sites

American Government (POLS 1101) Slides — 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 Education →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
hoover.org ↗	55 match shared topic	Hoover Institution	en	politics	robotsllmsaihumans	emailphone	none
tpusa.com ↗	55 match shared topic	Empowering the Next Generation of Liberty \| Turning Point USA	en	politics WordPress	robotsllmsaihumans	emailphone	none
independent.org ↗	55 match shared topic	Independent Institute	en	politics WordPress WooCommerce	robotsllmsaihumans	emailphone	none
citizenlab.ca ↗	55 match shared topic	The Citizen Lab - The Citizen Lab	Canada en	politics WordPress	robotsllmsaihumans	emailphone	none
millercenter.org ↗	55 match shared topic	Home \| Miller Center	en	politics Drupal	robotsllmsaihumans	emailphone	none
politicalsciencenow.com ↗	55 match shared topic	PoliticalScienceNow.com -	en	politics WordPress	robotsllmsaihumans	emailphone	none
shorensteincenter.org ↗	55 match shared topic	Homepage - The Shorenstein Center	en	education WordPress	robotsllmsaihumans	emailphone	none
davisenterprise.com ↗	55 match shared topic	davisenterprise.com \| The Davis Enterprise	en	education	robotsllmsaihumans	emailphone	full · 19
learnliberty.org ↗	55 match shared topic	Learn Liberty	en	education WordPress WooCommerce	robotsllmsaihumans	emailphone	none
citizenlab.org ↗	55 match shared topic	The Citizen Lab - The Citizen Lab	en	politics WordPress	robotsllmsaihumans	emailphone	none
aclu.org ↗	35 match shared topic	American Civil Liberties Union \| The ACLU dares to create a more perfect union — beyond one person, party, or side. Our mission is to realize this promise of the United States Constitution for all and expand the reach of its guarantees.	en	politics WordPress	robotsllmsaihumans	emailphone	none
annenbergpublicpolicycenter.org ↗	37 match shared topic	The Annenberg Public Policy Center of the University of Pennsylvania \|	en	politics WordPress	robotsllmsaihumans	emailphone	none
americanprogress.org ↗	35 match shared topic	Center for American Progress	en	politics WordPress	robotsllmsaihumans	emailphone	none
americansforprosperity.org ↗	35 match shared topic	Home - Americans for Prosperity	en	politics WordPress	robots llmsaihumans	emailphone	none
americanpartysc.com ↗	35 match shared topic	American Party SC - Portal Berita Seputar Amerika Serikat Terpercaya	en	politics WordPress	robotsllmsaihumans	emailphone	none
amgreatness.com ↗	35 match shared topic	American Greatness › Next Generation Conservatism	en	politics WordPress WooCommerce	robotsllmsaihumans	emailphone	partial · 9
sar.org ↗	35 match shared topic	National Society Sons of the American Revolution – Since 1889	en	education WordPress	robotsllmsaihumans	emailphone	none
thenewamerican.com ↗	35 match shared topic	The New American - That Freedom Shall Not Perish	en	politics WordPress WooCommerce	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.