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4Pedia alternatives & similar sites

4Pedia Reference Search -- Find Authoritative Sources Fast — 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 Search →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
yandex.com ↗	65 match shared topic	Yandex — fast Internet search	en	search	robotsllmsaihumans	emailphone	none
serper.dev ↗	65 match shared topic	Serper - The World's Fastest and Cheapest Google Search API	en	search Drupal	robotsllmsaihumans	emailphone	none
metager.org ↗	65 match shared topic	MetaGer: Privacy Protected Search & Find	en	search	robotsllmsaihumans	emailphone	none
4sandiego.com ↗	65 match shared topic	4SanDiego -- Local Search for San Diego Resources	United States~ en	search	robotsllmsaihumans	emailphone	none
zubee.com ↗	65 match shared topic	Zubee.com Search - Fast Searching and Personal Email	en	search	robotsllmsaihumans	emailphone	none
juicysearch.com ↗	65 match shared topic	JuicySearch \| Best OnlyFans Search Engine & Finder	en	search WordPress	robotsllmsaihumans	emailphone	none
turbopuffer.com ↗	65 match shared topic	turbopuffer - fast search engine built on object storage	en	search	robots llmsaihumans	emailphone	none
dialyou.com ↗	65 match shared topic	Find Businesses Near You on Local Search Engine - DialYou.Com	en	search	robotsllmsaihumans	emailphone	none
4information.com ↗	60 match shared topic	4Information -- Search IT Products, Services & Knowledge	en	search	robotsllmsaihumans	emailphone	none
4losangeles.com ↗	60 match shared topic	4LosAngeles -- Search Local Businesses, News, Events, and More	en	search	robotsllmsaihumans	emailphone	none
4chicago.com ↗	60 match shared topic	4Chicago -- Local search for Chicago people, places, and services	en	search	robotsllmsaihumans	emailphone	none
4atl.com ↗	60 match shared topic	4ATL -- Atlanta Search Engine for Local Results	en	search	robotsllmsaihumans	emailphone	none
4houston.com ↗	60 match shared topic	4Houston -- Search Houston Services, News, Places, and Stores	en	search	robotsllmsaihumans	emailphone	none
4crime.com ↗	60 match shared topic	4Crime -- Specialized Search for Crime News & Information	en	search	robotsllmsaihumans	emailphone	none
4luxury.com ↗	60 match shared topic	4Luxury -- Search the World of Luxury Goods, Services, and News	en	search	robotsllmsaihumans	emailphone	none
4nerds.com ↗	60 match shared topic	4Nerds -- Search for Nerdy Interests, Products, and News	en	search	robotsllmsaihumans	emailphone	none
activesearchresults.com ↗	60 match shared topic	Active Search Results Search Engine	en	search	robotsllmsaihumans	emailphone	none
4opinions.com ↗	60 match shared topic	4Opinions -- Search for Opinions, Reviews, and Viewpoints	en	search	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.