Websites
Change research topic
- AhmiaFreeSearch engine for publicly indexed Tor onion pages with open source code.
- Analyze IDPaidFinds related websites through shared identifiers and also provides a Username Checker.
- ArgusFreeLocal Python toolkit for domain, network and website research through a shared command line.
- BackTweetsUnknownTraces links and public mentions of a URL and shows its web archive history and AI visibility.
OPSEC caution
The AI readability check retrieves the entered website live and examines its raw HTML and robots.txt, among other things. The target server receives these requests.
- BuiltWithFreemiumIdentifies website technologies and shows their usage history, as well as websites using matching technologies or keywords.
- cariddiFreeLocal web crawler for finding URLs, endpoints, files and potentially exposed keys.
- dark.failFreeDirectory of selected onion services with availability indicators and PGP tools for checking addresses.
- darkdumpFreeLocal tool for searching the darknet and extracting content from matching pages. Includes a web interface, CLI and file export.
- flowsintFreeA self-hosted OSINT platform for research workflows and graph visualisation of connections.
OPSEC caution
Extension modules send queries from your own installation to websites and external services. According to the documentation, extensive queries may cause the infrastructure used to be flagged or blocked.
- LyzemFreeSearch engine for public Telegram channels, posts and group descriptions.
- OSINT UIFreemiumWeb platform with 20 OSINT tools, linked research results, reports and optional API and MCP access.
OPSEC caution
OSINT UI sends search values to the connected data providers and makes these queries using your own API keys. The keys are stored in encrypted form in the service.
- Pentest-Tools.comFreemiumPlatform for subdomain and infrastructure research, authorised vulnerability scans and penetration tests.
- PulsediveFreemiumThreat data for domains, IP addresses and URLs, with sources, risk indicators, history and an API.
OPSEC caution
Comments, edits and submissions display your username. This association remains even after the account is deleted.
- robinFreeSearches darknet search engines and uses a language model to summarise the pages found.
- SemrushFreemiumA marketing suite for domain, keyword, backlink and competitor analysis, with API and MCP access.
- SimilarwebFreemiumAnalyses website traffic, visitor origins, keywords and digital competitors.
- Social SearcherFreeFree search interface for publicly indexed social media profiles, posts and images through embedded Google search.
- socid-extractorFreeA local Python tool that extracts profile data and internal account IDs from profile pages and API responses.
- Taranis AIFreeA self-hosted OSINT platform for collecting news, AI analysis and report creation.
OPSEC caution
When an external LLM endpoint is configured, the optional AI service sends the content to be analysed to that provider. The endpoint is set in your own installation.
- TelegagoFreeA custom Google search for publicly indexed Telegram content.
- Telegram Phone Number CheckerFreeA locally installable Python tool for looking up Telegram accounts by telephone number or username.
OPSEC caution
Queries use your own Telegram account. Bellingcat warns that Telegram may suspend the account used because of the automation.
- TorBotFreeA local Python crawler for websites and onion sites. Shows page titles, descriptions and linked pages.
- UbikronPaidBrowser-based research workspace with a web archive, case notes, full-text search and AI support.
- urlscan.ioFreemiumAnalyses web pages in a browser sandbox and searches stored scans by technical characteristics.
- WatcherFreeSelf-hosted platform for cyber news, leak indicators and suspicious domains, with AI summaries.
- Wayback MachineFreeFree web archive for earlier versions of web pages, with a timeline, shareable archive URLs and APIs.
- Web ArchivesFreemiumA browser extension for earlier and cached versions of a web page across multiple web archives.
- Web ScraperFreemiumExtracts web data using visual rules in the browser and runs recurring retrieval jobs in the cloud.
OPSEC caution
The AI Sitemap Wizard sends the HTML of the open tab to Web Scraper and stores its URL.
- web-checkFreeAnalyses websites using DNS, WHOIS, TLS and technology checks. Free in a browser or on your own infrastructure.