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SSL for Free is a developer resource for coding, documentation, communities, security research, or software tools.

CentralOps collection of DNS, WHOIS, traceroute, email, and network lookup tools.

Online service for detailed and free analysis of suspicious files and URLs.

Awesome List is a GitHub repository or organization with source code, releases, documentation, or project resources.

Search page for checking names against a published no-fly-list style dataset.

OFAC search tool for checking sanctions lists, entities, individuals, and compliance records.

Guide to free and open source privacy tools, safer apps, and alternatives to data-heavy services.

Maps who links to any domain using the open Common Crawl hyperlink graph. Free, no-signup referring-domain and competitor link-footprint lookups for d

Free and open-source domain and infrastructure research toolkit combining DNS, RDAP, WHOIS, passive subdomain discovery, IP and ASN data, email authen

Free DNS, WHOIS, DKIM discovery, SPF/DMARC analysis and blacklist checks with plain-English results, no signup.

Free, no-login IP reputation lookup that aggregates up to 8 risk sources, flags residential vs datacenter, and profiles /24 C-block neighbors. Also of

Is a free platform offering network diagnostic tools (ping, traceroute, MTR, DNS, WHOIS, HTTP, etc.) tailored for ISPs and infrastructure professional

is a website that gives you a free and comprehensive report about a specific website.

Password generator that creates strong passphrases from Diceware-style word lists.

IANA database listing top-level domains, registry operators, and root zone delegation data.

constant popups documents a safety warning, scam report, malware concern, or risky download example.

unsafe extension documents a safety warning, scam report, malware concern, or risky download example.

Adware documents a safety warning, scam report, malware concern, or risky download example.

adware documents a safety warning, scam report, malware concern, or risky download example.

Reddit link documents a safety warning, scam report, malware concern, or risky download example.

Adware documents a safety warning, scam report, malware concern, or risky download example.

adware distributor Kape documents a safety warning, scam report, malware concern, or risky download example.

adware installers documents a safety warning, scam report, malware concern, or risky download example.

doxxing another sites owner documents a safety warning, scam report, malware concern, or risky download example.