john-kurkowski/tldextract

Health v2 · maintenance only

Adoption not part of the score

2014 stars · 220 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Python library that accurately splits URLs into subdomain, domain, and public suffix components using the Public Suffix List. It also ships a small CLI for extraction and suffix list updates.

Use cases

• parse domain and subdomain from a url in python
• get registrable domain from url like bbc.co.uk
• extract tld from hostname correctly
• validate whether a string is a valid domain
• group urls by root domain for analytics
• avoid naive dot-splitting when parsing hostnames

When to choose

• you need PSL-accurate domain parsing with edge cases like co.uk handled
• you want optional support for private suffixes like blogspot.com
• you need a maintained, widely used Python solution with CLI support

When to avoid

• you only need scheme/host/path splitting, which urllib.parse already does
• you need full URL normalization or crawling, not just hostname decomposition
• you work outside Python and need a native implementation

Facets

library · maturity stable

parser web-scraping developer-tools web-development developer-tools apis python cli cross-platform public-suffix-list url-parsing domain-parsing tld subdomain

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