{"id":37184520,"url":"https://github.com/prbinu/cert-scanner","last_synced_at":"2026-01-14T21:19:32.665Z","repository":{"id":57575372,"uuid":"72042811","full_name":"prbinu/cert-scanner","owner":"prbinu","description":"A fast TLS Cert scanner to scan HTTPS and SMTP servers","archived":false,"fork":false,"pushed_at":"2019-09-18T20:24:18.000Z","size":15,"stargazers_count":13,"open_issues_count":0,"forks_count":6,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-01-19T03:41:42.700Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/prbinu.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.txt","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2016-10-26T20:43:54.000Z","updated_at":"2024-12-22T13:46:23.000Z","dependencies_parsed_at":"2022-09-26T19:02:07.829Z","dependency_job_id":null,"html_url":"https://github.com/prbinu/cert-scanner","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/prbinu/cert-scanner","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/prbinu%2Fcert-scanner","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/prbinu%2Fcert-scanner/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/prbinu%2Fcert-scanner/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/prbinu%2Fcert-scanner/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/prbinu","download_url":"https://codeload.github.com/prbinu/cert-scanner/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/prbinu%2Fcert-scanner/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28434770,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-14T18:57:19.464Z","status":"ssl_error","status_checked_at":"2026-01-14T18:52:48.501Z","response_time":107,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 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":[],"created_at":"2026-01-14T21:19:32.031Z","updated_at":"2026-01-14T21:19:32.658Z","avatar_url":"https://github.com/prbinu.png","language":"Go","funding_links":[],"categories":[],"sub_categories":[],"readme":"# cert-scanner\nA fast TLS Cert scanner written in golang to scan HTTPS and SMTP servers, extract certificate information, and print it in a machine readable format.\n\n### Installation\n\nPrequisites: [golang](https://golang.org/dl/)\n\n```\n% git clone https://github.com/prbinu/cert-scanner.git\n% cd cert-scanner\n% go build\n```\n\nTo test:\n```\n% echo \"yahoo.com\" | ./cert-scanner -port 443 --quiet\n```\n\n###Usage\n```\n% cert-scanner --help\n\nUsage of ./cert-scanner:\n  -CAfile string\n    \tPEM format file of CA's\n  -batch-size int\n    \tflag to process requests in batch (default 32)\n  -delimiter string\n    \tfield separator char, works with -line option only (default \"|\")\n  -fields string\n    \tfield names to display (eg 'ip, host, pubkey_alg')\n  -filter string\n    \tquery filter to remove unwanted output (eg 'pubkey_alg = \"SHA\" AND x509_ver = 3')\n  -json\n    \tJSON output\n  -mx-lookup\n    \tresolve MX record (for -starttls smtp)\n  -output-dir string\n    \toutput directory to save output files (default \".\")\n  -port string\n    \tPort to scan (default \"25\")\n  -pretty\n    \tformatted JSON output\n  -quiet\n    \tsupress output to stdout\n  -starttls string\n    \tuse the STARTTLS command before starting TLS for those protocols that support it, where 'prot' defines which one to assume.  Currently, only 'smtp' is supported.\n  -timeout int\n    \tper-request timeout (default 10)\n  -tls-version string\n    \tprotocol version to use {ssl3, tls1, tls1_1, tls1_2} (def all versions)\n\n```\n\n###Caveats\nSince the Go TLS implementation does not support deprecated/insecure ciphers and old SSL versions, cert-scanner does not have weak cipher test or enumeration feature.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fprbinu%2Fcert-scanner","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fprbinu%2Fcert-scanner","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fprbinu%2Fcert-scanner/lists"}