{"id":34888610,"url":"https://github.com/cedmax/4-letter-domains","last_synced_at":"2026-03-14T22:34:05.449Z","repository":{"id":27640389,"uuid":"31125111","full_name":"cedmax/4-letter-domains","owner":"cedmax","description":"A script to dns lookup 4 letter domains combinations","archived":false,"fork":false,"pushed_at":"2021-05-10T15:46:36.000Z","size":33,"stargazers_count":4,"open_issues_count":1,"forks_count":4,"subscribers_count":1,"default_branch":"master","last_synced_at":"2024-05-02T01:21:59.786Z","etag":null,"topics":["dns","domain-name"],"latest_commit_sha":null,"homepage":null,"language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/cedmax.png","metadata":{"files":{"readme":"readme.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2015-02-21T12:35:47.000Z","updated_at":"2024-05-02T01:21:59.786Z","dependencies_parsed_at":"2022-09-03T03:24:10.921Z","dependency_job_id":null,"html_url":"https://github.com/cedmax/4-letter-domains","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/cedmax/4-letter-domains","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cedmax%2F4-letter-domains","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cedmax%2F4-letter-domains/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cedmax%2F4-letter-domains/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cedmax%2F4-letter-domains/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/cedmax","download_url":"https://codeload.github.com/cedmax/4-letter-domains/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/cedmax%2F4-letter-domains/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":30520456,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-03-14T19:51:21.629Z","status":"ssl_error","status_checked_at":"2026-03-14T19:51:12.959Z","response_time":57,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["dns","domain-name"],"created_at":"2025-12-26T04:58:50.607Z","updated_at":"2026-03-14T22:34:05.440Z","avatar_url":"https://github.com/cedmax.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"### DISCLAIMER: \nThis scripts was made just for fun (and to find a nice email address). \nI don't endorse cybersquatting, I hate seeing domain parked on weird advertising platforms and if you plan to do so, please just f*ck off.\n\nThis script works well with .it domains because the registration rules enforce the existance of the DSN zone. This might not be true for all domain extensions, in particular I found out this is not the case for .com, so don't bother (also .com 4 letter domains are sold out since ages, in web years).\n\n# 4 Letter Domain Finder\n\nThere are a lot of Italian (.it) 4 letter domains yet available, I was playing around and I think I found a way to have a list of them in 4 simple (yet long to execute) steps.\n\nFirst of all download this repo content, npm install.\n\n\n## Start\n\n```\nyarn install \u0026\u0026 yarn start\n```\n\nthis will create a `db.json` file containg all the combinations and start looking up the dns for each.\nDue to the nic.it rules the domains not having a NS record available are most likely available (or pendingDelete).\n\nThis step is parallelised in chuncks sized as per config, but it might still require hours. \n\nYou can stop it anytime: as long as the db.json doesn't get deleted (or you don't change the domain extension / length, or the characters range in the config) it will restart where you left off.\n\nIn order to start from scratch run\n\n```\nyarn reset\n```","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcedmax%2F4-letter-domains","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcedmax%2F4-letter-domains","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcedmax%2F4-letter-domains/lists"}