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 →

Browse free →

Sites similar to underground8.at

Underground8 alternatives & similar sites

Blue Shield Umbrella — 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 Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
aithershield.ai ↗	64 match 1 shared topics	AitherShield - Quantensicherheit	de	information-and-network-security	robotsllmsaihumans	emailphone	none
4-assured.com ↗	62 match 1 shared topics	M-CR IT-Systemhaus: Sichere Netzwerke mit 4-assured: Firewall & VPN Lösungen	de	information-and-network-security	robotsllmsaihumans	emailphone	none
khani-cybersec.com ↗	62 match 1 shared topics	Hamid Reza Shahsavarkhani — Cyber Security Consulting für OT & IT	de	information-and-network-security	robotsllmsaihumans	emailphone	none
whitelisthacker.com ↗	62 match 1 shared topics	whitelisthackers	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
whitelisthacker.net ↗	62 match 1 shared topics	whitelisthackers	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
whitelisthacker.org ↗	62 match 1 shared topics	whitelisthackers	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
whitelisthackers.com ↗	62 match 1 shared topics	whitelisthackers	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
whitelisthackers.net ↗	62 match 1 shared topics	whitelisthackers	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
whitelisthackers.org ↗	62 match 1 shared topics	whitelisthackers	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
beispiel.io ↗	62 match 1 shared topics	whitelisthackers	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
aarforge.com ↗	61 match 1 shared topics	AarForge · Vulnerability Intelligence	de	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
giselaschenker.com ↗	61 match 1 shared topics	eleven2 gmbh	de	information-and-network-security	robotsllmsaihumans	email phone	none
the-secure-internet.com ↗	61 match 1 shared topics	Die Spezialisten für IT-Sicherheit & Datenschutz - m-privacy GmbH	de	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
adele-firewall.swiss ↗	61 match 1 shared topics	Adele FireWall \| Das Schweizer Messer der Cyber-Sicherheit	de	information-and-network-security Spree Commerce	robotsllmsaihumans	emailphone	none
24awareness.com ↗	61 match 1 shared topics	IntraCast – Ihr IT-Sicherheits-Podcast	de	information-and-network-security	robotsllmsaihumans	emailphone	none
defcom.com ↗	61 match 1 shared topics	Defcom ist eine Gesellschaft, die eine neuartige und offene Verschlüsselung für den Datenschutz entwickelt.	de	information-and-network-security	robotsllmsaihumans	emailphone	none
degertech.com ↗	61 match 1 shared topics	DegerTech – Schützen Sie Ihr Unternehmen vor Phishing, Hacker-Angriffen & Cyber-Crime – Phishing-Awareness, Pentesting, Beratung - Startseite	de	information-and-network-security	robotsllmsaihumans	emailphone	none
abdsg.info ↗	61 match 1 shared topics	intersoft consulting services AG \| Experten für Datenschutz & IT	de	information-and-network-security WordPress	robots llmsaihumans	email phone	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.