Alternatives and competitors
Sites like purl.org
The 20 closest persistent identifiers alternatives to purl.org, ranked by what they actually offer, and the 3 technologies behind it.
Looking for an alternative to purl.org? The closest matches are curl, DOI.org query endpoint and Archive of Our Own. We match sites by what they actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Vote on each alternative and leave a short note to help the next person choose.
- Neighbours
- k = 20
- Sites searched
- 4,032
- Vector
- 384-d
- Query
- 41 ms
01 · Entity
About purl.org
purl.org
PURL Administration
Summary by Claude
A free service run by the Internet Archive that lets users create persistent URLs (PURLs), stable web addresses that redirect to resources even when the resources move.
- Who it’s for
- Librarians, researchers, ontology publishers and web developers
- Business model
- Nonprofit, donation-funded
02 · Embedding space
Competitor map
Each alternative by how close its vector is to purl.org’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.
similarity × popularity
03 · Nearest neighbours
Alternatives to purl.org
Thumbs up if it’s a real alternative to purl.org, thumbs down if it isn’t.
- 01
curl
command line tool and library for transferring data with URL syntax
Very close cos 0.896 - 02
Home Page
API endpoint
Very close cos 0.894 - 03
Request temporarily denied. | Archive of Our Own
nonprofit online fanfiction repository operated by the Organization for Transformative Works
Close cos 0.893 - 04
NLnet Labs - Home
Research & Development, Internet architecture, DNS, Routing, Stability and Security.
Close cos 0.887 - 05
Православный портал «Азбука веры» | Православный сайт
«Азбука веры» – ведущий религиозный интернет-портал: 40 сайтов, включающих библиотеку, молитвослов, календарь, аудио, видео, викторины...
Close cos 0.882 - 06 Close cos 0.881
- 07
IP Echo Service
Close cos 0.882 - 08
Client Challenge
distributor of eBooks and other digital media
Close cos 0.883 - 09
What Is My IP Address? - ifconfig.me
Get my IP Address
Close cos 0.882 - 10
Welcome to Open Library | Open Library
Open Library is an open, editable library catalog, building towards a web page for every book ever published. Read, borrow, and discover more than 3M books for free.
Close cos 0.880 - 11
Wikidata
free multilingual online knowledge graph
Close cos 0.880 - 12
Wikisource
online multilingual library that collects open-content source material
Close cos 0.881 - 13
OSF
tools that make open science practice easier
Close cos 0.880 - 14
ORCID
non-profit organization that issues ORCID Identifiers
Close cos 0.876 - 15
Zenodo
research data repository
Close cos 0.878 - 16
Client Challenge
free and open-source web content management system
Close cos 0.879 - 17
Free email accounts | Register today at mail.com
Email how it is supposed to be: ✔ Free, simple and secure ✔ Manage multiple mail accounts in one place, from any device ✔ Sign up today!
Close cos 0.879 - 18
LiveInternet @ Статистика и дневники, почта и поиск
LiveInternet - крупный сервис дневников и сообществ, авторитетный сервис статистики для сайтов
Close cos 0.877 - 19
Arch Linux
Linux distribution
Close cos 0.873 - 20
The Comprehensive Perl Archive Network - www.cpan.org
Perl package repository
Close cos 0.873
Ranked by score: the cosine similarity of each site’s vector to purl.org’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones purl.org uses too. Votes and comments come from visitors and don’t change the ranking.
04 · Fingerprints
Technology
What purl.org is built with, and what its closest competitors use, from its homepage’s code and its DNS records.
Built with
- JavaScript libraries
- jQuery asset https://purl.archive.org/static/jquery/jquery.js
- CSS & UI
- Bootstrap asset https://purl.archive.org/static/bootstrap/js/bootstrap.js
- Web servers
- nginx header server: nginx
Stack changes
No changes yet. Each new crawl is compared with the last one, and what purl.org adds or drops shows up here.
What competitors use
Across the 20 closest sites.
- Google Search Console · not on purl.org 17/20
- nginx 7/20
- Fastly · not on purl.org 4/20
- Cloudflare DNS · not on purl.org 4/20
- Google Fonts · not on purl.org 4/20
- Cloudflare · not on purl.org 3/20
- Font Awesome · not on purl.org 3/20
- Google Cloud DNS · not on purl.org 3/20
- GlobalSign · not on purl.org 3/20
- Microsoft 365 · not on purl.org 3/20
- Amazon SES · not on purl.org 2/20
- Bootstrap 2/20
- jQuery 2/20
- Google Workspace · not on purl.org 2/20
- Yandex Metrica · not on purl.org 2/20
- Google Cloud · not on purl.org 2/20