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Search tool for scholarly metadata, DOI records, research papers, and citation links.
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deadlinkchecker.com
Dead Link Checker checks website availability, outages, broken links, or service status from the web.
drlinkcheck.com
Dr. Link Check checks website availability, outages, broken links, or service status from the web.
findaforum.net
Directory and search tool for discovering forums by topic, size, and activity.
viz.greynoise.io
Threat intelligence search tool for checking internet scan traffic and suspicious IP activity.
github.com
Hurl is an open source link or URL tool for shortening, managing, or working with web links.
ilo.muni.la
Search engine tool for Toki Pona words and phrases.
importyeti.com
Search tool for exploring US import records and supplier relationships between companies.
isitdownrightnow.com
Is It Down Right Now checks website availability, outages, broken links, or service status from the web.
istheservicedown.com
Is The Service Down? checks website availability, outages, broken links, or service status from the web.
isupmap.com
isUpMap checks website availability, outages, broken links, or service status from the web.
keyword.io
Keyword research tool for finding autocomplete ideas from search engines and content platforms.
github.com
Link Stack is an open source link or URL tool for shortening, managing, or working with web links.
github.com
Linkclump Plus is an open source link or URL tool for shortening, managing, or working with web links.
github.com
Linkding is an open source link or URL tool for shortening, managing, or working with web links.
linkok.com
linkok.com crawls websites to find broken links, redirects, and technical SEO issues.
matilda.science
Search engine and bibliometric tool for open science.
github.com
Open-Multiple-URLs is an open source link or URL tool for shortening, managing, or working with web links.
openbuckets.io
Search tool for discovering publicly exposed cloud storage buckets and related security issues.
github.com
SEOMacroscope crawls websites to find broken links, redirects, and technical SEO issues.
siteslike.com
Website discovery tool for finding similar websites by category, topic, or domain.
spyfu.com
SpyFu helps research keywords, search demand, related terms, and content opportunities for SEO.
theindex.fyi
Directory and discovery site for useful websites, tools, resources, and curated links.
updowntoday.com
UpDownToday checks website availability, outages, broken links, or service status from the web.