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DNS Tools
View category →DNS Propagation Checker
/dns-propagation-checker
Live check from 100+ global DNS resolvers.
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DNS Check
/dns-check
Comprehensive DNS server health checks for a domain.
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DNS Lookup
/dns-lookup
Query A, AAAA, CNAME, MX, TXT, NS, SOA records.
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A Record Lookup
/a-record-lookup
Lookup IPv4 DNS A records.
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AAAA Record Lookup
/aaaa-record-lookup
Lookup IPv6 DNS AAAA records.
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CNAME Lookup
/cname-lookup
Lookup canonical name DNS records.
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TXT Lookup
/txt-lookup
Lookup TXT records including verification and policy strings.
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SOA Lookup
/soa-lookup
Lookup DNS Start of Authority records.
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SRV Lookup
/srv-lookup
Lookup DNS SRV service location records.
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NS Lookup
/ns-lookup
Find authoritative nameservers and validate DNS authority.
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DNSKEY Lookup
/dnskey-lookup
Lookup DNSSEC DNSKEY records.
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DS Lookup
/ds-lookup
Lookup delegation signer records for DNSSEC chain validation.
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RRSIG Lookup
/rrsig-lookup
Lookup DNSSEC signature records.
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NSEC Lookup
/nsec-lookup
Lookup DNSSEC NSEC records.
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NSEC3PARAM Lookup
/nsec3param-lookup
Lookup NSEC3PARAM DNSSEC records.
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CERT Lookup
/cert-lookup
Lookup CERT records in DNS.
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LOC Lookup
/loc-lookup
Lookup DNS LOC geographic location records.
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IPSECKEY Lookup
/ipseckey-lookup
Lookup IPSECKEY records for IPsec key distribution.
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WHOIS Lookup
/whois-lookup
Retrieve domain registration and ownership data.
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Reverse DNS Lookup
/reverse-dns
Lookup PTR records and map IP addresses to hostnames.
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Email Tools
View category →MX Record Lookup
/mx-record-lookup
Check inbound email routing and MX priorities.
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Blacklist Check
/blacklist-check
Check domain or IP against common DNS-based blacklists.
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SMTP Test
/smtp-test
Diagnose email sending issues and common ports.
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SPF Record Checker
/spf-checker
Validate your SPF TXT record and lookup limits.
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DKIM Checker
/dkim-checker
Verify DKIM selector and public key record.
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DMARC Checker
/dmarc-checker
Validate DMARC policy, alignment and reporting.
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BIMI Lookup
/bimi-lookup
Lookup BIMI DNS records for brand logo indicators.
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MTA-STS Lookup
/mta-sts-lookup
Check MTA-STS DNS TXT record and policy presence.
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Email Health Report
/email-health-report
Run combined email auth and routing checks in one report.
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Email Header Analyzer
/email-header-analyzer
Analyze raw email headers for routing and auth signals.
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DMARC Report Analyzer
/dmarc-report-analyzer
Parse and summarize DMARC aggregate XML reports.
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Email Deliverability Report
/email-deliverability-report
Assess inbox readiness and sender reputation signals.
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Google/Yahoo Compliance Checker
/google-yahoo-compliance-checker
Check domain alignment with modern bulk sender requirements.
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Microsoft Compliance Checker
/microsoft-compliance-checker
Check Microsoft-focused email authentication and policy signals.
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Network Tools
View category →MAC Address Lookup
/mac-address-lookup
Identify vendor from MAC OUI prefixes.
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MAC Address Generator
/mac-address-generator
Generate random MAC addresses with formatting options.
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Subnet Calculator
/subnet-calculator
Calculate subnet masks, ranges, and host capacity.
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HTTP Lookup
/http-lookup
Fetch and inspect HTTP response details for a URL.
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HTTPS Lookup
/https-lookup
Fetch HTTPS response and certificate context for a URL.
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Ping
/ping
Test reachability and latency.
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Online Traceroute
/online-traceroute
Trace network hops from source to destination.
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Webmaster Tools
View category →HTTP Headers Check
/http-headers-check
Inspect HTTP response headers for any URL.
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Website Operating System Check
/website-operating-system-check
Estimate server OS and software stack signals.
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What is My User Agent?
/what-is-my-user-agent
Display your browser's user-agent string.
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Website Link Analyzer
/website-link-analyzer
Analyze internal and external links on a page.
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Website Redirect Checker
/website-redirect-checker
Trace HTTP redirect chains for URLs.
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Search Presence Check
/search-presence-check
Technical indexability and search-signal diagnostics.
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Security Tools
View category →Port Scanner
/port-scanner
Check whether ports are reachable.
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SSL Certificate Checker
/ssl-checker
Verify TLS validity, chain, issuer and expiry.
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Domain DNS Security Check
/domain-dns-security-check
Assess DNS and domain-level security posture.
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SPF Generator
/spf-generator
Generate SPF DNS records with guided options.
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DMARC Generator
/dmarc-generator
Generate DMARC policy records with guided policy settings.
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DKIM Record Generator
/dkim-record-generator
Generate DKIM DNS record values for selectors.
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Email Security Checker
/email-security-checker
Check overall SPF, DKIM, and DMARC security posture.
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Website Vulnerability Scanner
/website-vulnerability-scanner
Run passive website security checks and risk hints.
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IP Tools
View category →IP Geolocation Lookup
/ip-lookup
Find IP location, ISP and ASN.
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What Is My IP
/what-is-my-ip
Detect your current public IP address and network fingerprint.
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IP Blacklist Check
/ip-blacklist-check
Check an IP against common DNSBL/RBL blocklists.
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ASN Lookup
/asn-lookup
Lookup autonomous system routing and ownership information.
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ARIN Lookup
/arin-lookup
Lookup IP ownership in ARIN registration data.
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