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Alternatives to domain-checker

domain-checker is an agent skill by davidondrej: Check domain registration in batches using public RDAP APIs, without keys or login. If it doesn't fit your setup, these 12 agent skills cover similar ground. They are ordered by how closely they match domain-checker and by our rank, which weighs adoption, freshness and documentation; money never changes the order. attack-surface-recon leads the list (largest repository here (8,008 stars); active in the last 30 days). 1 of them is published by the company behind the product. Each entry shows data reasons to switch, and you can open a side-by-side comparison with domain-checker.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

You're replacing

domain-checker

Check domain registration in batches using public RDAP APIs, without keys or login.

12 alternatives

Ordered by how closely each matches domain-checker (shared product, category or stated alternative) and by rank.

  1. 1
    attack-surface-recon

    AIPentest

    侦察/攻击面测绘:被动whois/amass/crt.sh/FOFA/Shodan,主动subfinder/httpx/naabu/katana/nuclei,DNS地域/CDN/Nginx catch-all/宝塔/UniApp指纹。开局第一动作,认知写入项目黑板。Use when starting recon…

    • Largest repository here (8,008 stars)
    • Active in the last 30 days

    ★ 8KLast active Oct 16, 2026Claude Code, Claude apps, Codex, Cursor +6

  2. 2
    aws-vpc-dns-investigation

    ddericcoOfficial

    Use this skill when a name is not resolving as expected inside a VPC, or before applying a DNS control-plane change.

    • Published by the vendor

    ★ 116Last active Oct 21, 2026Claude Code, Claude apps, Codex, Cursor +6

  3. 3
    dns-debug

    scitix

    Diagnose DNS resolution failures in the cluster (NXDOMAIN, timeouts, SERVFAIL).

    • Open source (Apache-2.0)

    ★ 238Last active Sep 14, 2026Claude Code, Claude apps, Codex, Cursor +6

  4. 4
    networkpolicy-debug

    scitix

    Diagnose NetworkPolicy-related connectivity issues (traffic unexpectedly blocked, default-deny effects, egress blocking DNS).

    • Open source (Apache-2.0)

    ★ 238Last active Sep 14, 2026Claude Code, Claude apps, Codex, Cursor +6

  5. 5
    domain-dns-ops

    steipete

    DNS/domain ops: registrars, zones, redirects, DNS/HTTP verify, manager truth.

    • Repository has 7.4K stars
    • Open source (MIT)

    ★ 7.4KLast active Jul 17, 2026Claude Code, Claude apps, Codex, Cursor +6

  6. 6
    wiki-recon

    Encod3d-Sec

    External recon and OSINT pipeline - subdomain enum, live host discovery, URL crawl, JS analysis, nuclei scan.

    • Open source (MIT)

    ★ 335Last active Aug 14, 2026Claude Code, Claude apps, Codex, Cursor +6

  7. 7
    clickclack

    steipete

    ClickClack ops: chat app, Cloudflare Workers deploy, DNS/docs/app, container rollout.

    • Repository has 7.4K stars
    • Open source (MIT)

    ★ 7.4KLast active Jul 17, 2026Claude Code, Claude apps, Codex, Cursor +6

  8. 8
    intranet-penetration-testing

    langbyyi

    内网渗透测试深度专业技能：本地信息收集与凭证窃取(mimikatz/LSASS/ntds.dit)、内网探测与隐藏隧道(frp/Chisel/DNS/ICMP)、Windows/Linux提权、横向移动矩阵(IPC/WMI/DCOM/PSEXEC)、AD域渗透与域控接管(Zerologon/Kerberoast/AD…

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 131Last active Oct 16, 2026Claude Code, Claude apps, Codex, Cursor +6

  9. 9
    hetzner-dns

    HybridAIOne

    Read and manage Hetzner DNS zones and records through gateway-proxied DNS API requests with guarded A, AAAA, CNAME, and TXT changes.

    • Supports JavaScript

    ★ 159Last active Oct 24, 2026Claude Code, Claude apps, Codex, Cursor +6

  10. 10
    crt.sh

    taracodlabs

    Enumerate subdomains and TLS certs via CT logs (no API key needed)

    • Supports TypeScript

    ★ 863Last active Oct 19, 2026Claude Code, Claude apps, Codex, Cursor +6

  11. 11
    infrastructure

    transilienceai

    Network infrastructure testing - port scanning, DNS attacks, MITM, VLAN hopping, IPv6, SMB/NetBIOS, sniffing, and DoS assessment.

    • Open source (MIT)
    • Ships helper scripts

    ★ 591Last active Jul 26, 2026Claude Code, Claude apps, Codex, Cursor +6

  12. 12
    reconnaissance

    transilienceai

    Domain assessment and web application mapping - subdomain discovery, port scanning, endpoint enumeration, API discovery, and attack surface analysis.

    • Open source (MIT)

    ★ 591Last active Jul 26, 2026Claude Code, Claude apps, Codex, Cursor +6

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