# Domain Scan by CYBERACE

> Scan, check and monitor SPF, DKIM, DMARC, SSL certificates, security headers, HTTPS, HSTS, DNSSEC, uptime and more. One dashboard for all your domains.

## About

Domain Scan by CYBERACE is a web application that helps domain owners, IT teams and security professionals monitor the technical trust and security posture of their domains. It performs automated checks across email authentication, web security and availability from a single dashboard.

The platform covers SPF, DKIM, DMARC, SSL/TLS certificates, HTTPS, HSTS, security headers, DNSSEC, CAA and uptime monitoring, helping teams detect misconfigurations, weaknesses and outages early.

## Key Features

- Domain security scanning for SPF, DKIM, DMARC, SSL/TLS, HTTPS, HSTS, DNSSEC, CAA and security headers
- Uptime monitoring with alerts for downtime and recovery events
- Public status pages for monitored domains
- AI-generated plain-language summaries for scan results
- Email alerts and webhook notifications for status changes
- Multi-language support in English, Spanish and Japanese

## Main URLs

- Homepage: https://domainscan.tools/
- Blog: https://domainscan.tools/blog
- AI Pentesting (EN): https://domainscan.tools/tools/pentest-ai
- Pentesting con IA (ES): https://domainscan.tools/es/tools/pentest-ai
- Login: https://domainscan.tools/login
- Register: https://domainscan.tools/register
- Glossary: https://domainscan.tools/glossary

## Free Tools

- All tools directory: https://domainscan.tools/tools

- SPF Checker: https://domainscan.tools/tools/spf-checker
- DKIM Checker: https://domainscan.tools/tools/dkim-checker
- DMARC Checker: https://domainscan.tools/tools/dmarc-checker
- SSL/TLS Checker: https://domainscan.tools/tools/ssl-checker
- Security Headers Checker: https://domainscan.tools/tools/security-headers-checker
- HSTS Checker: https://domainscan.tools/tools/hsts-checker
- DNSSEC Checker: https://domainscan.tools/tools/dnssec-checker
- MX Record Lookup: https://domainscan.tools/tools/mx-record-lookup
- CAA Record Checker: https://domainscan.tools/tools/caa-checker
- BIMI Record Checker: https://domainscan.tools/tools/bimi-checker
- Domain Expiration Checker (RDAP/WHOIS): https://domainscan.tools/tools/domain-expiration-checker
- DNS Blacklist Checker (RBL/DNSBL): https://domainscan.tools/tools/blacklist-checker
- Domain Security Scanner: https://domainscan.tools/tools/domain-security-scanner

## Product Access

- Free public scan available on the homepage without registration
- Paid plans starting at €29/month (about $39) for up to 10 domains
- Annual billing available from €290/year (2 months free)

## Spanish Site (URL mirror at /es/)

The homepage, tools, glossary and legal pages have a Spanish equivalent under the `/es/` prefix. Spanish articles keep their translated slugs under `/blog/…`.

- Homepage (ES): https://domainscan.tools/es
- Blog index (ES): https://domainscan.tools/es/blog
- Glossary (ES): https://domainscan.tools/es/glossary
- AI Pentesting (ES): https://domainscan.tools/es/tools/pentest-ai
- SPF Checker (ES): https://domainscan.tools/es/tools/spf-checker
- DKIM Checker (ES): https://domainscan.tools/es/tools/dkim-checker
- DMARC Checker (ES): https://domainscan.tools/es/tools/dmarc-checker
- SSL/TLS Checker (ES): https://domainscan.tools/es/tools/ssl-checker
- Security Headers Checker (ES): https://domainscan.tools/es/tools/security-headers-checker
- HSTS Checker (ES): https://domainscan.tools/es/tools/hsts-checker
- DNSSEC Checker (ES): https://domainscan.tools/es/tools/dnssec-checker
- MX Record Lookup (ES): https://domainscan.tools/es/tools/mx-record-lookup
- CAA Record Checker (ES): https://domainscan.tools/es/tools/caa-checker
- BIMI Checker (ES): https://domainscan.tools/es/tools/bimi-checker
- Caducidad de dominio (ES): https://domainscan.tools/es/tools/domain-expiration-checker
- Listas negras DNS (ES): https://domainscan.tools/es/tools/blacklist-checker
- Reverse IP Lookup (ES): https://domainscan.tools/es/tools/reverse-ip-lookup
- Website Response Checker (ES): https://domainscan.tools/es/tools/website-response-checker
- Website Down Checker (ES): https://domainscan.tools/es/tools/website-down-checker
- Domain Security Scanner (ES): https://domainscan.tools/es/tools/domain-security-scanner
- Privacy (ES): https://domainscan.tools/es/privacy
- Terms (ES): https://domainscan.tools/es/terms
- Cookies (ES): https://domainscan.tools/es/cookies

## Japanese Site (URL mirror at /ja/)

The landing and free tools have Japanese equivalents under the `/ja/` prefix. The blog has its own JA index at `/ja/blog` and every Japanese post lives under `/blog/…` (same path space, listed above under 日本語ガイド). Legal pages remain available in English and Spanish.

- Homepage (JA): https://domainscan.tools/ja
- Blog index (JA): https://domainscan.tools/ja/blog
- AI Pentesting (JA): https://domainscan.tools/ja/tools/pentest-ai
- SPF Checker (JA): https://domainscan.tools/ja/tools/spf-checker
- DKIM Checker (JA): https://domainscan.tools/ja/tools/dkim-checker
- DMARC Checker (JA): https://domainscan.tools/ja/tools/dmarc-checker
- SSL/TLS Checker (JA): https://domainscan.tools/ja/tools/ssl-checker
- Security Headers Checker (JA): https://domainscan.tools/ja/tools/security-headers-checker
- HSTS Checker (JA): https://domainscan.tools/ja/tools/hsts-checker
- DNSSEC Checker (JA): https://domainscan.tools/ja/tools/dnssec-checker
- MX Record Lookup (JA): https://domainscan.tools/ja/tools/mx-record-lookup
- CAA Record Checker (JA): https://domainscan.tools/ja/tools/caa-checker
- BIMIチェッカー (JA): https://domainscan.tools/ja/tools/bimi-checker
- ドメイン有効期限チェッカー (JA): https://domainscan.tools/ja/tools/domain-expiration-checker
- DNSブラックリストチェッカー (JA): https://domainscan.tools/ja/tools/blacklist-checker
- Reverse IP Lookup (JA): https://domainscan.tools/ja/tools/reverse-ip-lookup
- Website Response Checker (JA): https://domainscan.tools/ja/tools/website-response-checker
- Website Down Checker (JA): https://domainscan.tools/ja/tools/website-down-checker
- Domain Security Scanner (JA): https://domainscan.tools/ja/tools/domain-security-scanner

## English Guides

- [What Is an SPF Record?](https://domainscan.tools/blog/what-is-spf-record)
- [DMARC Explained: Setup Guide](https://domainscan.tools/blog/dmarc-explained)
- [How to Configure DMARC in My Hosting](https://domainscan.tools/blog/how-to-configure-dmarc-in-hosting)
- [SSL Certificate Check Guide](https://domainscan.tools/blog/ssl-certificate-check)
- [TLS Checker: How to Test Certificates, Chains and Protocol Versions](https://domainscan.tools/blog/tls-checker-test-guide)
- [MX Record Lookup: How to Check Mail Server DNS Records](https://domainscan.tools/blog/mx-record-lookup-guide)
- [Security Headers Guide](https://domainscan.tools/blog/security-headers-guide)
- [DKIM Check: How to Verify a DKIM Record](https://domainscan.tools/blog/dkim-check-how-to-verify-dkim-record)
- [DKIM Record Not Propagating?](https://domainscan.tools/blog/dkim-record-not-propagating)
- [DKIM Record Exists but Fails Validation](https://domainscan.tools/blog/dkim-record-exists-but-fails-validation)
- [Check SPF and DKIM Before DMARC](https://domainscan.tools/blog/check-spf-and-dkim-before-dmarc)
- [What Is a DKIM Selector?](https://domainscan.tools/blog/what-is-dkim-selector-how-to-find-it)
- [DKIM Record Missing Public Key](https://domainscan.tools/blog/dkim-record-missing-public-key-fix)
- [How to Configure DKIM in Microsoft 365](https://domainscan.tools/blog/how-to-configure-dkim-in-microsoft-365)
- [How to Set Up DMARC for Microsoft 365](https://domainscan.tools/blog/how-to-setup-dmarc-microsoft-365)
- [How to Configure DKIM in Google Workspace](https://domainscan.tools/blog/how-to-configure-dkim-in-google-workspace)
- [Where to Add a DMARC Record](https://domainscan.tools/blog/where-to-add-dmarc-record-hosting-dns-registrar)
- [Configure SPF, DKIM and DMARC in Cloudflare DNS](https://domainscan.tools/blog/configure-spf-dkim-dmarc-cloudflare-dns)
- [SPF Check: How to Validate an SPF Record](https://domainscan.tools/blog/spf-check-how-to-validate-spf-record)
- [DMARC Record Generator: How to Build a DMARC Policy](https://domainscan.tools/blog/dmarc-record-generator-how-to-build-dmarc-policy)
- [What Is DMARC? Complete Guide 2026](https://domainscan.tools/blog/what-is-dmarc-complete-guide)
- [DKIM Check: How to Check DKIM Record Free (2026)](https://domainscan.tools/blog/dkim-check-free-tool-guide)
- [SPF, DKIM and DMARC: The Ultimate Email Authentication Guide](https://domainscan.tools/blog/spf-dkim-dmarc-ultimate-guide)
- [Best DNS Monitoring Tools in 2026: A Neutral Buyer's Guide](https://domainscan.tools/blog/best-dns-monitoring-tools-2026)
- [Best SPF, DKIM and DMARC Checkers in 2026](https://domainscan.tools/blog/best-spf-dkim-dmarc-checkers-2026)
- [Best SSL/TLS Certificate Monitoring Tools in 2026](https://domainscan.tools/blog/best-ssl-tls-monitoring-tools-2026)
- [Best Free Domain Security Scanners in 2026](https://domainscan.tools/blog/best-free-domain-security-scanners-2026)
- [Why Are My Emails Going to Spam?](https://domainscan.tools/blog/why-are-my-emails-going-to-spam)
- [Is My Domain Secure?](https://domainscan.tools/blog/is-my-domain-secure)
- [Domain Security Risks Checklist](https://domainscan.tools/blog/domain-security-risks-checklist)
- [Can Someone Spoof My Domain?](https://domainscan.tools/blog/can-someone-spoof-my-domain)
- [Why Does My Website Show Not Secure?](https://domainscan.tools/blog/why-does-my-website-show-not-secure)
- [Website Security Check Before Launch](https://domainscan.tools/blog/website-security-check-before-launch)
- [How to Know If My SSL Certificate Expired](https://domainscan.tools/blog/how-to-know-if-my-ssl-certificate-expired)
- [Domain Monitoring Alerts](https://domainscan.tools/blog/domain-monitoring-alerts-what-to-watch)
- [What Happens If DNS Records Change?](https://domainscan.tools/blog/what-happens-if-my-dns-records-change)
- [How to Protect My Website: Practical Security Checklist](https://domainscan.tools/blog/how-to-protect-my-website)
- [Domain Security Checklist: DNS, Email, TLS and Headers](https://domainscan.tools/blog/domain-security-checklist-dns-email-tls-headers)
- [Why DMARC Fails: Common Errors and Practical Fixes](https://domainscan.tools/blog/why-dmarc-fails-common-errors-fixes)
- [Reverse IP Lookup: How to Find Every Domain on the Same IP](https://domainscan.tools/blog/reverse-ip-lookup-guide)
- [Is My Website Down? How to Check and What to Do Next](https://domainscan.tools/blog/is-my-website-down-checker-guide)

## Guías en español

- [¿Qué es un registro SPF?](https://domainscan.tools/blog/que-es-registro-spf)
- [Cómo configurar DMARC](https://domainscan.tools/blog/como-configurar-dmarc)
- [Cómo configurar DMARC en mi hosting](https://domainscan.tools/blog/como-configurar-dmarc-en-mi-hosting)
- [Verificar certificado SSL](https://domainscan.tools/blog/verificar-certificado-ssl)
- [Test TLS: cómo comprobar certificados, cadena y versiones seguras](https://domainscan.tools/blog/test-tls-comprobar-ssl-certificado)
- [Lookup MX: cómo comprobar los registros de correo de un dominio](https://domainscan.tools/blog/lookup-mx-registros-correo)
- [Cabeceras de seguridad web](https://domainscan.tools/blog/cabeceras-seguridad-web)
- [Verificar registro DKIM](https://domainscan.tools/blog/verificar-registro-dkim)
- [DKIM no propaga: cómo corregirlo](https://domainscan.tools/blog/dkim-no-propaga)
- [DKIM en DNS pero no valida](https://domainscan.tools/blog/dkim-en-dns-pero-no-valida)
- [Comprobar SPF y DKIM antes de DMARC](https://domainscan.tools/blog/comprobar-spf-y-dkim-antes-de-dmarc)
- [Qué es un selector DKIM](https://domainscan.tools/blog/que-es-selector-dkim-como-encontrarlo)
- [Registro DKIM sin clave pública](https://domainscan.tools/blog/registro-dkim-sin-clave-publica-solucion)
- [Cómo configurar DKIM en Microsoft 365](https://domainscan.tools/blog/como-configurar-dkim-en-microsoft-365)
- [Cómo configurar DKIM en Google Workspace](https://domainscan.tools/blog/como-configurar-dkim-en-google-workspace)
- [Dónde añadir el registro DMARC](https://domainscan.tools/blog/donde-anadir-registro-dmarc-hosting-dns-registrador)
- [Configurar SPF, DKIM y DMARC en Cloudflare DNS](https://domainscan.tools/blog/configurar-spf-dkim-dmarc-cloudflare-dns)
- [Comprobar registro SPF](https://domainscan.tools/blog/comprobar-registro-spf)
- [Generador de registro DMARC](https://domainscan.tools/blog/generador-registro-dmarc)
- [¿Qué es DMARC? Guía completa 2026](https://domainscan.tools/blog/que-es-dmarc-guia-completa)
- [Verificar DKIM: Herramienta gratuita 2026](https://domainscan.tools/blog/verificar-dkim-herramienta-gratis-guia)
- [SPF, DKIM y DMARC: Guía definitiva](https://domainscan.tools/blog/spf-dkim-dmarc-guia-definitiva)
- [Mejores herramientas de monitorización DNS en 2026](https://domainscan.tools/blog/mejores-herramientas-dns-2026)
- [Mejores verificadores de SPF, DKIM y DMARC en 2026](https://domainscan.tools/blog/mejores-verificadores-spf-dkim-dmarc-2026)
- [Mejores herramientas para monitorizar certificados SSL/TLS en 2026](https://domainscan.tools/blog/mejores-monitores-ssl-tls-2026)
- [Mejores escáneres gratuitos de seguridad de dominio en 2026](https://domainscan.tools/blog/mejores-escaneres-gratis-seguridad-dominio-2026)
- [Por qué mis emails llegan a spam](https://domainscan.tools/blog/por-que-mis-emails-llegan-a-spam)
- [¿Es mi dominio seguro?](https://domainscan.tools/blog/es-mi-dominio-seguro)
- [Riesgos de seguridad de dominio](https://domainscan.tools/blog/riesgos-seguridad-dominio-checklist)
- [¿Pueden suplantar mi dominio?](https://domainscan.tools/blog/pueden-suplantar-mi-dominio)
- [Por qué mi web sale como no segura](https://domainscan.tools/blog/por-que-mi-web-sale-como-no-segura)
- [Checklist de seguridad web antes de lanzar](https://domainscan.tools/blog/checklist-seguridad-web-antes-de-lanzar)
- [Cómo saber si mi certificado SSL ha caducado](https://domainscan.tools/blog/como-saber-si-mi-certificado-ssl-ha-caducado)
- [Alertas de monitorización de dominio](https://domainscan.tools/blog/alertas-monitorizacion-dominio-que-vigilar)
- [Qué pasa si cambian mis registros DNS](https://domainscan.tools/blog/que-pasa-si-cambian-mis-registros-dns)
- [Cómo proteger mi página web: checklist práctico de seguridad](https://domainscan.tools/blog/como-proteger-mi-pagina-web)
- [Checklist de seguridad de dominio: DNS, email, TLS y cabeceras](https://domainscan.tools/blog/checklist-seguridad-dominio-dns-email-tls-cabeceras)
- [Por qué falla DMARC: errores comunes y soluciones prácticas](https://domainscan.tools/blog/por-que-falla-dmarc-errores-comunes-soluciones)
- [Reverse IP Lookup: cómo ver todos los dominios en la misma IP](https://domainscan.tools/blog/guia-reverse-ip-lookup)
- [Está caída mi web? Cómo comprobarlo y qué hacer](https://domainscan.tools/blog/mi-web-esta-caida-como-comprobarlo)

- [Cómo configurar DMARC en Microsoft 365 paso a paso](https://domainscan.tools/blog/configurar-dmarc-microsoft-365)

## 日本語ガイド

- [SPF・DKIM・DMARCとは？メール認証を正しく設定する完全ガイド](https://domainscan.tools/blog/spf-dkim-dmarc-toha)
- [DMARCの設定方法：DNSレコードを安全に導入する手順](https://domainscan.tools/blog/dmarc-settei-guide)
- [DKIMレコードの確認方法](https://domainscan.tools/blog/dkim-record-kakunin)
- [SPFレコードの確認方法](https://domainscan.tools/blog/spf-record-kakunin)
- [SSL/TLS証明書の確認方法](https://domainscan.tools/blog/ssl-certificate-kakunin)
- [HTTPセキュリティヘッダー設定ガイド](https://domainscan.tools/blog/security-header-settei)
- [DMARCが失敗する原因と解決方法](https://domainscan.tools/blog/dmarc-error-kaiketsu)
- [ドメインセキュリティチェックリスト](https://domainscan.tools/blog/domain-security-checklist-ja)
- [Reverse IP Lookupの使い方](https://domainscan.tools/blog/reverse-ip-lookup-tsukaikata)
- [Webサイトがダウンしている？外部から確認する方法](https://domainscan.tools/blog/website-down-kakunin)
- [SPFレコードとは？メール送信元を指定するDNS設定](https://domainscan.tools/blog/spf-record-toha)
- [DMARCレコード生成ガイド：安全なポリシーの作り方](https://domainscan.tools/blog/dmarc-record-generator-tsukaikata)
- [DMARCとは？仕組み・設定・運用の完全ガイド](https://domainscan.tools/blog/dmarc-toha-complete-guide)
- [DKIMを無料で確認する方法：セレクターから公開鍵まで](https://domainscan.tools/blog/dkim-check-free-guide)
- [DNS監視ツール比較 2026：選定基準と確認ポイント](https://domainscan.tools/blog/dns-monitoring-tools-2026-ja)
- [SPF・DKIM・DMARCチェッカー比較 2026](https://domainscan.tools/blog/spf-dkim-dmarc-checker-hikaku-2026)
- [SSL/TLS証明書監視ツール比較 2026](https://domainscan.tools/blog/ssl-tls-monitoring-tools-2026-ja)
- [無料ドメインセキュリティスキャナー比較 2026](https://domainscan.tools/blog/domain-security-scanner-2026-ja)
- [Webサイトを保護する実践セキュリティチェックリスト](https://domainscan.tools/blog/website-security-checklist-ja)
- [ホスティング環境でDMARCを設定する方法](https://domainscan.tools/blog/hosting-dmarc-settei)
- [DKIMレコードがDNSに反映されない原因と確認方法](https://domainscan.tools/blog/dkim-dns-hanei-sarenai)
- [DKIMレコードは存在するのに検証に失敗する場合](https://domainscan.tools/blog/dkim-record-kensho-shippai)
- [DMARC導入前にSPFとDKIMを確認するチェックリスト](https://domainscan.tools/blog/dmarc-mae-spf-dkim-check)
- [DKIMセレクターとは？見つけ方とDNS確認方法](https://domainscan.tools/blog/dkim-selector-toha)
- [DKIMレコードに公開鍵がない場合の意味と修正](https://domainscan.tools/blog/dkim-public-key-nashi)
- [Microsoft 365でDKIMを設定する方法](https://domainscan.tools/blog/microsoft-365-dkim-settei)
- [Google WorkspaceでDKIMを設定する方法](https://domainscan.tools/blog/google-workspace-dkim-settei)
- [DMARCレコードはどこに追加する？DNS管理先の見つけ方](https://domainscan.tools/blog/dmarc-record-doko)
- [Cloudflare DNSでSPF・DKIM・DMARCを設定する方法](https://domainscan.tools/blog/cloudflare-spf-dkim-dmarc-settei)
- [メールが迷惑メールに入る原因：ドメイン設定チェック](https://domainscan.tools/blog/email-spam-genin)
- [自分のドメインは安全？実践チェックリスト](https://domainscan.tools/blog/domain-anzen-check)
- [ドメインセキュリティのリスク一覧：何が起こり得るか](https://domainscan.tools/blog/domain-security-risk-ja)
- [自分のドメインはなりすまされる？確認とリスク低減](https://domainscan.tools/blog/domain-spoofing-check-ja)
- [Webサイトに「保護されていない通信」と表示される原因](https://domainscan.tools/blog/website-not-secure-genin)
- [Webサイト公開前のセキュリティチェックリスト](https://domainscan.tools/blog/website-launch-security-check)
- [SSL証明書の期限切れを確認する方法](https://domainscan.tools/blog/ssl-certificate-kigen-check)
- [ドメイン監視アラート：何を監視すべきか](https://domainscan.tools/blog/domain-monitoring-alert-ja)
- [DNSレコードが変わると何が起こる？影響と確認方法](https://domainscan.tools/blog/dns-record-change-impact)
- [Microsoft 365でDMARCを設定する方法](https://domainscan.tools/blog/microsoft-365-dmarc-settei)
- [MXレコードLookup：メールサーバーDNSの確認方法](https://domainscan.tools/blog/mx-record-lookup-ja)
- [TLSチェッカー：証明書・チェーン・プロトコルの確認方法](https://domainscan.tools/blog/tls-checker-guide-ja)

## MCP Server (AI agents)

Free domain security scanning is available as an MCP tool for ChatGPT, Claude, Cursor and other MCP clients.

- Setup guide: https://domainscan.tools/mcp (also /es/mcp and /ja/mcp)
- Support and contact: https://domainscan.tools/support (also /es/support and /ja/support)
- Guide article (EN): https://domainscan.tools/blog/scan-domains-from-chatgpt-mcp
- Guia (ES): https://domainscan.tools/blog/escanear-dominios-desde-chatgpt-mcp
- Guide (JA): https://domainscan.tools/blog/chatgpt-kara-domain-scan-mcp
- MCP endpoint (Streamable HTTP): https://api.domainscan.tools/functions/v1/mcp-server
- Anonymous tool: `scan_domain(domain, dkim_selector?)` — returns a 0-100 security score, per-check findings (SSL, SPF, DKIM, DMARC, MTA-STS, HSTS, CSP, DNSSEC, CAA, uptime, BIMI, domain expiry, DNS blocklists), fix hints and a private report link. Rate-limited per IP.

### Authenticated MCP access (registered users)

Create a personal API key in Settings → API & MCP and connect any MCP client with `Authorization: Bearer ds_live_...`. Authenticated tools include:

- `list_domains()` — list your monitored domains and their latest score/status.
- `get_domain_report(domain)` — latest full scan report for one of your domains.
- `scan_my_domain(domain)` — trigger a fresh scan of one of your domains (respects plan limits).
- `get_uptime()` — uptime and average response time for your domains (24h / 7d / 30d).
- `list_incidents()` — recent downtime or degraded incidents.

Authenticated calls are limited to 100 per hour per API key. Keys can be revoked at any time from Settings.

## Contact

- Website: https://domainscan.tools/