osintverse-community/checkdmarc
Checks a domain's SPF, DMARC, MX, BIMI and DNSSEC records and reports problems
No key · Python wheel · 149 installs / 30 days
Lists a domain's pages in Common Crawl's URL index, with each capture's time, status, type and language
Community-packaged from github.com/commoncrawl/cdx_toolkit: the registry's community pins the upstream release; the tool is its authors' work. Maintain that project? Claim this package.
Run
Through ot mcp, an agent calls run_tool with this; ot asks you before anything that goes online or touches a target. Set it up: ot mcp install claude (or cursor, vscode, codex, gemini).
{"tool":"osintverse-community/cdx-toolkit","target":"example.com","input_type":"domain"}Or just say: "Run osintverse-community/cdx-toolkit on example.com with OTInstaller." The registry's read-only MCP server at api.otinstaller.com/mcp can find tools without installing anything.
ot run osintverse-community/cdx-toolkit d:example.com --format tableot install osintverse-community/cdx-toolkitPython wheel, run in a read-only container (Docker optional with --native) · network allowed · no key · up to 10 min. The first ot run installs the tool after asking once. The example value is the registry's own test input, so this command has run. Drop --format table for JSON.
ot? Install it in one linecurl -fsSL https://get.otinstaller.com/ot | shot release for your machine from GitHub Releases.checksums.txt, and the Ed25519 signature on that file against the key built into the script.ot in /usr/local/bin or ~/.local/bin. Nothing else is written. Read the script.irm https://get.otinstaller.com/ot.ps1 | iexot release for your machine from GitHub Releases.checksums.txt, and the Ed25519 signature on that file against the key built into the script.ot in %LOCALAPPDATA%\Programs\ot, and adds it to your PATH. Nothing else is written. Read the script.sha256:577ae9a9…04e431 from PyPI. ot re-hashes the file after download and refuses a mismatch.ot checks the same identity before every install and refuses another signer.ot downloads the copy and checks the same hash.Not health-checked yet; 0.9.39 came out today; nobody has said yet whether it works.
0.9.39 is in its first week. Nobody has said whether it works yet.
Used 0.9.39?It's broken for me
{"languages": "eng", "length": "996", "mime": "text/html", "status": "200", "timestamp": "20261005112841", "url": "https://example.com/"}
{"languages": "eng", "length": "999", "mime": "text/html", "status": "200", "timestamp": "20261005151603", "url": "https://example.com/"}
{"languages": "eng", "length": "993", "mime": "text/html", "status": "200", "timestamp": "20261005154750", "url": "http://example.com/"}
{"languages": "eng", "length": "995", "mime": "text/html", "status": "200", "timestamp": "20261005185728", "url": "http://example.com/"}
{"languages": "eng", "length": "998", "mime": "text/html", "status": "200", "timestamp": "20261005220006", "url": "https://example.com/"}
{"languages": "eng", "length": "999", "mime": "text/html", "status": "200", "timestamp": "20261005231354", "url": "https://example.com/"}
{"languages": "eng", "length": "993", "mime": "text/html", "status": "200", "timestamp": "20261005235803", "url": "http://example.com/"}
{"languages": "eng", "length": "996", "mime": "text/html", "status": "200", "timestamp": "20261006030441", "url": "https://example.com/"}
{"languages": "eng", "length": "1004", "mime": "text/html", "status": "200", "timestamp": "20261006033845", "url": "https://www.example.com/"}
{"languages": "eng", "length": "998", "mime": "text/html", "status": "200", "timestamp": "20261006082447", "url": "https://example.com/"}
{"languages": "eng", "length": "1002", "mime": "text/html", "status": "200", "timestamp": "20261006084244", "url": "https://www.example.com/"}
{"languages": "eng", "length": "1000", "mime": "text/html", "status": "200", "timestamp": "20261006124306", "url": "https://example.com/"}
{"languages": "eng", "length": "993", "mime": "text/html", "status": "200", "timestamp": "20261006143312", "url": "http://example.com/"}
{"languages": "eng", "length": "993", "mime": "text/html", "status": "200", "timestamp": "20261006173838", "url": "http://www.example.com/"}
{"languages": "eng", "length": "995", "mime": "text/html",The start of what version 0.9.39 printed on its test input (jsonl), recorded by the registry on 24 Oct 2026. ot run wraps it in the result envelope.
This repository packages github.com/commoncrawl/cdx_toolkit for the OTInstaller Registry as osintverse-community/cdx-toolkit. The tool is the work of its authors, under the Apache-2.0 license; this repository only holds the manifest and release workflow.
Report problems with the tool upstream, and problems with the packaging here. If you maintain the upstream project and want to publish it yourself, open an issue or run ot claim osintverse-community/cdx-toolkit: the package is transferred to you.
It installs the upstream project's own release from PyPI, pinned by version and hash; nothing here is rebuilt.
Searches Common Crawl's URL index, which needs no key, for pages on the domain itself (not its subdomains) in the latest crawl, or the latest --crawls. The index is often overloaded: cdx_toolkit retries its 502 and 504 answers, and searching many crawls at once can take minutes.
ot run osintverse-community/cdx-toolkit --domain …
Packaged version: 0.9.39.
cdx-toolkit finds url. Tools that take those:
Alternatives to cdx-toolkit that also take a domain; ot auto runs every installed one on the same value.
Checks a domain's SPF, DMARC, MX, BIMI and DNSSEC records and reports problems
Reads a server's TLS certificate: names it covers, issuer, validity, fingerprints and JARM
Looks up a domain's A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records
Finds registered look-alike domains for phishing, typosquatting and brand impersonation
Enumerates a domain's DNS: standard records, SRV services, zone transfer checks and DNSSEC