PyFunceble-dev
The tool to check the availability or syntax of domain, IP or URL.
Decision gist · record as of 2026-08-14
Yes, if you need to check domain, IP, or URL availability at scale. Low install friction, permissive license, active maintenance, and no known vulnerabilities make it a safe choice. The 15 runtime dependencies suggest some overhead; verify whether your use case requires all of them or if a lighter alternative suits you better.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later (supports current versions, <4).
- Some backends (e.g., PostgreSQL) require optional dependencies installed separately.
- Low install friction with a pure-Python wheel distribution.
License · maintenance · safety
Apache 2.0 (permissive) — Licensed under Apache 2.0 (permissive), allowing commercial and private use with minimal restrictions beyond attribution and liability disclaimers.
last release 2026-08-01 (13 days) · last repo commit 2026-08-01 · 346 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 124,475 downloads/mo, #11,866 on PyPI
Alternatives
Verify before relying
pip install pyfunceble-dev
from pyfunceble import PyFunceble
checker = PyFunceble()
result = checker.check('example.com')- Whether the 15 runtime dependencies (PyMySQL, SQLAlchemy, requests, etc.) are all required for basic domain checking or if some are optional for specific backends.
- Performance characteristics when checking large batches of domains or IPs.
- Whether the CLI and Python API have feature parity or if certain capabilities are CLI-only.
What it is and what it does
PyFunceble is a domain, IP, and URL availability and syntax checker that combines multiple verification sources—WHOIS records, DNS lookups, and HTTP status codes—to determine whether a target is live or valid. It runs as a CLI tool or can be embedded in Python projects via its API, and supports input from hosts files, plain lists, AdBlock filter lists, and RPZ records.
The package is designed for active deployment in CI/CD pipelines (GitHub Actions, Travis CI, GitLab CI) and on standalone systems. It carries 15 runtime dependencies including SQLAlchemy, requests, dnspython, and PyMySQL, suggesting support for database backends and multiple query methods. The dev variant (pyfunceble-dev) receives frequent updates; the stable pyfunceble package updates more slowly after features mature.
Use it for
- Bulk-verify domain lists in security scanning or threat intelligence workflows.
- Monitor domain and IP reputation as part of a CI/CD pipeline or scheduled job.
- Validate domain syntax and availability before registration or DNS configuration.
- Parse and check domains from AdBlock filter lists or DNS RPZ records.
- Integrate domain-checking logic into a Python application via the API.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need to check domain, IP, or URL availability at scale.
Low install friction, permissive license, active maintenance, and no known vulnerabilities make it a safe choice. The 15 runtime dependencies suggest some overhead; verify whether your use case requires all of them or if a lighter alternative suits you better.
Install
pyfunceble-dev on PyPI
Before you install
Low install friction with a pure-Python wheel distribution. Active maintenance with a release 13 days old and recent commits; the project is actively developed and deployed across multiple platforms.
Requires Python 3.10 or later (supports current versions, <4). Some backends (e.g., PostgreSQL) require optional dependencies installed separately.
License in practice
Licensed under Apache 2.0 (permissive), allowing commercial and private use with minimal restrictions beyond attribution and liability disclaimers.
Quickstart
pip install pyfunceble-dev
from pyfunceble import PyFunceble
checker = PyFunceble()
result = checker.check('example.com')Verify before relying
- Whether the 15 runtime dependencies (PyMySQL, SQLAlchemy, requests, etc.) are all required for basic domain checking or if some are optional for specific backends.
- Performance characteristics when checking large batches of domains or IPs.
- Whether the CLI and Python API have feature parity or if certain capabilities are CLI-only.
Package facts
| License | Apache 2.0 permissive |
| Python support | Supports the current Python release <4,>=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 15 packagesPyMySQLpython-dotenvalembicrequestspyfunceble-process-managerdnspythonpackagingcoloramaSQLAlchemyshtabsetuptoolsPyYAMLpython-boxinflectiondomain2idna |
| Maintenance | Actively maintained 13 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 124,475 / month, #11,866 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaEnvironment :: ConsoleIntended Audience :: DevelopersProgramming Language :: PythonProgramming Language :: Python :: 3Topic :: Internet |
Evidence: pyfunceble_dev-4.4.2-py3-none-any.whl
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See also whois · email-validator · python-whois · fqdn · whoisit · nslookup · dnstwist · pyIsEmail · domain2idna · ipwhois