subdomain checker - SERP Analysis

https://pentest-tools.com/information-gathering/find-subdomains-of-domain

https://subdomainfinder.c99.nl/

https://subdomains.whoisxmlapi.com/

https://hackertarget.com/find-dns-host-records/

https://seranking.com/free-tools/subdomain-finder.html

https://osint.sh/subdomain/

https://dnsdumpster.com/

https://www.merklemap.com/

https://www.nmmapper.com/sys/tools/subdomainfinder/

https://ralfvanveen.com/en/tools/subdomain-finder/

https://dnschecker.org/all-dns-records-of-domain.php

https://subdomainradar.io/

https://subdomains.whoisxmlapi.com/lookup

https://www.whatsmydns.net/

https://subdomainfinder.in/

https://medium.com/%40techlatest.net/subdomain-discovery-in-cybersecurity-with-kali-linux-b7337520425f

https://strobes.co/blog/how-to-protect-your-website-from-subdomain-takeovers/

https://www.reddit.com/r/HowToHack/comments/cqtyu4/how_to_find_all_the_subdomain_of_a_domain/

https://sitechecker.pro/subdomain-finder/

https://www.postman.com/postman/postman-security-workspace/request/ovx4xug/trusted-unauthorised-subdomain-test

https://owasp.org/www-project-web-security-testing-guide/latest/4-Web_Application_Security_Testing/02-Configuration_and_Deployment_Management_Testing/10-Test_for_Subdomain_Takeover

https://guard.io/subdomailing

https://dmarcian.com/domain-checker/

https://stackoverflow.com/questions/70518549/simplest-way-to-check-if-the-current-url-contains-a-subdomain

https://www.helpnetsecurity.com/2025/02/03/baddns-open-source-tool-check-domain-subdomain-takeover/

https://bolster.ai/blog/subdomain-hijacking-takeover

https://dnschecker.org/cname-lookup.php

https://www.reddit.com/r/HowToHack/comments/tny8ye/i_found_a_tool_that_finds_subdomains_from/

https://samanpavel.medium.com/finding-out-subdomains-64469cbfef52

https://support.hostinger.com/en/articles/1583405-how-to-create-and-delete-subdomains

https://www.supermonitoring.com/blog/dns-entries/

https://www.youtube.com/watch?v=wTZKzwnr03M

https://mxtoolbox.com/domain/

https://github.com/adrianlarion/its-alive

https://serverfault.com/questions/1160485/check-if-a-subdomain-is-in-a-list-of-subdomains-and-use-a-different-proxy-pass-d

https://devina.io/subdomain-finder

https://easydmarc.com/tools/spf-lookup

https://digger.tools/subdomains

https://serverfault.com/questions/1048157/how-to-check-for-the-existence-of-deep-subdomains-even-if-the-intermediate-ones

https://stackoverflow.com/questions/58815007/how-to-check-if-string-is-valid-subdomain

https://s4e.io/tools/find-subdomains

https://github.com/0xPugal/SubDomz

https://www.geeksforgeeks.org/sub404-tool-to-check-subdomain-takeover-vulnerability-in-linux/

https://security.stackexchange.com/questions/35078/how-can-i-find-subdomains-of-a-site

https://support.zendesk.com/hc/en-us/articles/4409381383578-Where-can-I-find-my-Zendesk-subdomain

https://www.virustotal.com/gui/domain/subdomain.slack.com/detection

https://www.analyticsmania.com/post/subdomain-tracking-with-google-analytics-and-google-tag-manager/

https://hsuper.tools/subdomain-checker/

https://www.namecheap.com/support/knowledgebase/article.aspx/9776/2237/how-to-create-a-subdomain-for-my-domain/

https://hstspreload.org/

https://support.google.com/a/answer/33786?hl=en

https://m.youtube.com/watch?v=7tp0lFFfx3k

https://docs.netlify.com/domains/get-started-with-domains/

https://suip.biz/?act=subfinder

https://geekflare.com/cybersecurity/find-subdomains/

https://binsec.com/en/tools/identify-subdomains/

https://www.whatsmydns.net/domain-age

https://0xdf.gitlab.io/2025/05/31/htb-checker.html

https://search.censys.io/

https://ralfvanveen.com/tools/bulk-subdomain-finder/

https://learn.microsoft.com/en-us/defender-office-365/email-authentication-dkim-configure

https://www.hostitsmart.com/blog/how-to-find-subdomains-of-a-domain/

https://www.hackerone.com/blog/guide-subdomain-takeovers-20

https://botster.io/bots/find-subdomains

https://ahrefs.com/website-authority-checker

https://bsky.social/about/blog/4-28-2023-domain-handle-tutorial

https://www.stationx.net/how-to-perform-subdomain-enumeration/

https://httpstatus.io/

https://news.ycombinator.com/item?id=37531801

https://www.nmmapper.com/

https://docs.railway.com/guides/public-networking

https://mxtoolbox.com/

https://learn.microsoft.com/en-us/rest/api/iotcentral/controlplane/apps/check-subdomain-availability?view=rest-iotcentral-controlplane-2021-06-01

https://www.duplichecker.com/domain-age-checker.php

https://securitytrails.com/

https://developers.cloudflare.com/dns/zone-setups/

https://letsencrypt.org/docs/challenge-types/

https://ahrefs.com/traffic-checker

https://blogger.googleblog.com/2006/03/subdomain-availability-checker.html

https://www.youtube.com/watch?v=NVCNzgg5yZE

https://socradar.io/how-to-find-subdomains-using-free-online-services/

https://www.hostinger.com/domain-name-search

https://docs.lovable.dev/tips-tricks/custom-domain

https://cloud.google.com/recaptcha/docs/create-key-website

https://www.wordtracker.com/

https://www.brokenlinkcheck.com/

https://ping.eu/

https://render.com/docs/web-services

https://www.calculator.net/ip-subnet-calculator.html

https://opentunnel.net/subdomain-finder/

https://help.pinterest.com/en/business/article/claim-your-website

https://ideoname.com/blog/best-subdomain-finder-tools/

https://pentest-tools.com/network-vulnerability-scanning/port-scanner-online-nmap

https://www.geeksforgeeks.org/subzy-subdomain-takeover-vulnerability-checker-tool/

https://freedns.afraid.org/

https://developers.google.com/speed/public-dns/cache

https://subdomainfinder.c99.nl/scans/2020-09-07/j.sni.global.fastly.net

https://www.seobility.net/en/seocheck/

https://www.seoreviewtools.com/valuable-backlinks-checker/