MyIPScan

DNS and Domain Tool

CAA Lookup

Check Certification Authority Authorization records for a domain. CAA can guide certificate issuance, but it is not a full TLS certificate or website-security audit.

Direct answer

CAA Lookup: answer first

Check CAA DNS records for a domain and see which certificate authorities may issue certificates. Use the result as an observable public-signal check with stated limitations, not as an absolute guarantee.

Last updated

Check CAA records

Enter a domain to check CAA records.
Technical response details (optional)


What the results mean
CAA records can name certificate authorities that may issue certificates for a domain. Values often include issue, issuewild, or iodef.
How to use this tool
  1. Enter a domain.
  2. Review returned CAA records and TTL values.
  3. Use SSL Certificate Checker, HTTP Headers Checker, and Security Headers Checker for complementary website signals.


FAQ
Does this inspect the live certificate?
No. It checks DNS CAA records only.
Can CAA stop every bad certificate?
No. It is a policy signal used by certificate authorities, not a standalone protection layer.
Why use CAA?
CAA can reduce accidental issuance by unexpected certificate authorities when configured correctly.







  

    
B2B diagnostic report model

    
Domain intelligence diagnostics

    
Domain checks connect public DNS, RDAP-safe context, reverse DNS, CAA, DNSSEC hints, IP/ASN context, provider hints, and blacklist context.

  

  

    
SummaryStart with a plain-language status for the public target.

    
Top issuesPrioritize the few findings that need attention first.

    
What passedShow expected public signals without turning them into a certification.

    
What needs reviewSeparate limited, unavailable, and review-worthy signals.

    
Why it mattersExplain the business, delivery, crawl, or implementation impact.

    
Recommended fixesPoint to the DNS, hosting, email, CMS, or SEO owner who can act.

    
What this tool cannot checkThis does not enumerate subdomains, scan ports, prove ownership, prove origin IP exposure, or certify infrastructure security.

    
Client-safe copyClient-safe copy should keep high-level DNS/RDAP/provider findings while suppressing raw payloads and RDAP contact personal data.

    
Monitoring beta (optional)Optional monitoring beta can compare DNS, RDAP status, expiration windows, provider hints, reverse DNS, and blacklist context for approved public domains.

  

  

    

      
Client-safe report

      
Share findings without leaking raw technical material

      
Use Safe Copy or this page's summary when sending results to a client, vendor, developer, or support team. Raw headers, credentials, tokens, cookies, private addresses, email local-parts, and oversized payloads should stay out of client-facing copy.

    

    

      Review Safe Copy
      Ask about monitoring beta
    

  

  

    Domain Intelligence ReportDomain intelligence diagnostics follow-up.
      SSL Certificate CheckerDomain intelligence diagnostics follow-up.
      Website Exposure ScannerDomain intelligence diagnostics follow-up.
      Email Deliverability DoctorDomain intelligence diagnostics follow-up.
      AI/Search Visibility ScannerDomain intelligence diagnostics follow-up.
  







  

    

      
Check my website/domain

      
What this checks

      
Public DNS, HTTP, HTTPS, certificate, redirect, header, IP/ASN, or domain configuration signals.

    

    

      
Limits

      
What this cannot check

      
It cannot perform credentialed vulnerability testing, scan private hosts, bypass access controls, or certify complete security.

    

    

      
Read results

      
How to use the output

      
Treat results as review signals for this browser/session or public target. Re-test after one change, then use Safe Copy or notes that avoid raw identifiers.

    

  

  

    

      
Related tools

      
Continue with the closest checks

    

    

      Public Exposure ReportFull browser-session report with Safe Copy, issues, fixes, and clear limits.
      VPN Leak TestCompare visible IP, DNS, WebRTC, IPv6, and browser signals.
      Website Exposure ScannerHTTPS, redirects, headers, DNS, IPv6, mixed content, and CDN/origin context.
      Domain Intelligence ReportDNS inventory, RDAP-safe context, IP/ASN, provider hints, and blacklist context.
      MethodologyReview how MyIPScan labels signals, limitations, and Safe Copy output.
    

  







  

    
SEO and AI citation summary

    
CAA Lookup: what this tool does

    
Checks Certification Authority Authorization DNS records for a domain.

  

  

    

      
How to use

      
  1. Enter one public domain, IP address, or ASN value supported by the tool.
  2. Review record values, TTLs, provider hints, and confidence notes before changing DNS.
  3. Retest after propagation and compare with the Domain Intelligence Report.

    

    

      
What the result means

      
Treat DNS, RDAP, PTR, CAA, and provider context as public registry or resolver evidence. DNS can be cached, delegated, proxied, or incomplete.

    

    

      
Limitations

      
  • This tool reports observable signals only; it is not a guarantee or certification.
  • Uses /api/dns-lookup with CAA records through Cloudflare DoH.
  • Results can change after VPN reconnects, DNS propagation, browser updates, cache changes, or provider configuration changes.

    

  

  

    
FAQ

    

      Does CAA prove a certificate is safe?
      
No. CAA records guide certificate issuance but do not prove the current site certificate or full TLS posture.

    

    

      What does CAA Lookup do?
      
CAA Lookup Checks Certification Authority Authorization DNS records for a domain. Results are review signals with stated limits.

    

    

      How should I use CAA Lookup results?
      
Use the result to decide what to review next, make one change at a time, and retest in the same browser, network, domain, or provider context when possible.

    

    

      What does CAA Lookup not prove?
      
It does not prove anonymity, full security, complete deliverability, full reputation cleanliness, search ranking, or AI citation. It only reports the visible signals available to this tool.

    

  

  

    
Next checks and references

    
DNS and Domain ToolsParent hub for this tool category.SSL Certificate CheckerCertificate transparency expiry and SAN check.DNS LookupDNS records through Cloudflare DoH.Security Headers CheckerInformational security-header presence check.WHOIS / RDAP LookupPublic RDAP registry lookup.Relevant guideBackground reading for interpreting this result.MethodologyHow MyIPScan labels confidence, limits, and safe-copy outputs.