opensquat
atenreiro/opensquat
openSquat is an OSINT security tool designed to detect brand protection threats such as typosquatting, phishing, and IDN homograph attacks through newly registered domain feeds and similarity detection.
980 160GPL-3.0Updated 2026-08-01
84
GreatOverview
openSquat is an advanced open-source intelligence and brand protection tool that helps security analysts and organizations identify potential phishing, typosquatting, bitsquatting, and IDN homograph threats. By leveraging newly registered domain (NRD) feeds, Levenshtein distance similarity algorithms, and optional cloud-based APIs or MCP server integrations, it scans for look-alike domains targeting specific keywords and brands, providing validation through DNS checks and certificate transparency logs.
Capabilities
- ▸Levenshtein distance similarity detection
- ▸Daily NRD feed processing
- ▸DNS validation via Quad9
- ▸VirusTotal and certificate transparency log checks
- ▸Multiple output formats (JSON, CSV, TXT)
- ▸Model Context Protocol (MCP) server support
Best for
Monitoring newly registered domains for phishing threats mimicking a specific brand, Detecting typosquatting and homograph attacks against enterprise domains, Integrating domain intelligence directly into AI assistants via Model Context Protocol (MCP), Automating brand protection workflows and threat intelligence gathering
Works with
Claude CodeCursorGitHub Copilot
Evoa Score breakdown= Σ (score × weight)
84Task usefulness20%100 → +20.0
実タスクにどれだけ役立つか（機能の豊富さ・用途の明確さ）。 — AIによるcapabilities/use-cases解析
Code quality15%90 → +13.5
実装・指示の品質。 — AIによるSKILL.md/README解析
Maintenance15%100 → +15.0
リポジトリがどれだけ活発に保守されているか。 — GitHub 最終push日時の新しさ
Documentation12%44 → +5.3
ドキュメントの充実度・分かりやすさ。 — README/独自要約の情報量
Security15%80 → +12.0
危険・不審な挙動が無いか。 — AIによるセキュリティレビュー
Originality10%85 → +8.5
ありふれたラッパーではない独自性。 — AIによる独自性判定
Popularity8%78 → +6.2
コミュニティの採用度。 — GitHub Stars/Forks（対数スケール）
Compatibility5%75 → +3.8
対応AIエージェントの広さ。 — AIによる対応エージェント判定
Weighted total84.3 / 100
ライセンス不明/制限あり（Red）のSkillは総合スコアに0.85倍の補正を適用します。 ランキングはこのScoreのみで決まり、広告で変わりません。 算出方法の詳細 →
Security considerations
The tool performs active lookups against external DNS resolvers, certificate transparency logs, and threat intelligence APIs, which may expose target keywords or queries to third-party services depending on the execution mode.
Categories
Summary and analysis are original content generated by AI Skills Rank. The skill's source text is not reproduced here — view it on the linked repository.