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netcheck — Free DNS, SSL, WHOIS & Network Diagnostics Tool
Check DNS records, SSL certificates, HTTP headers, WHOIS data, spam reputation, or open ports for any domain or IP address — free, instant, no login required.
|
90 % |
|
Network & Website Troubleshooting Utilities
|
89 % |
|
DNS is Beautiful - Network Diagnostics Suite
DNS propagation, global HTTP availability, security audits, and TCP traceroute from 20 resolvers and 14 regions worldwide.
|
89 % |
|
DNS Scanner - Free Online DNS Server Testing Tool | CloudFloorDNS
Free online DNS server scanner and testing tool. 135+ DNS health checks across 18 categories: delegation consistency, DNSSEC chain-of-trust, EDNS compliance,...
|
89 % |
|
HostChecker – Free Ping, SSL, DNS & WHOIS Checker
Free online host checker: HTTP status, redirects, ping, traceroute, DNS, WHOIS, SSL, security headers, blacklists, and DNS propagation. No signup.
|
88 % |
|
DomainDoctor
DomainDoctor analyzes domains and presents technical intelligence for DNS, SSL, WHOIS, security, performance, mail, infrastructure, and reputation.
|
88 % |
|
deepdig — DNS, TLS, WHOIS, mail & network diagnostics
Free, self-hostable network diagnostics: DNS propagation & DNSSEC, SSL/TLS analyzer, WHOIS, mail (SPF/DKIM/DMARC/MTA-STS), HTTP headers, mail blacklists, IP...
|
88 % |
|
Propagation Studio — Global DNS propagation checker
Change a DNS record and watch it roll out across the world. Propagation Studio checks your record live from dozens of locations, so you know exactly who is a...
|
88 % |
|
Check Everything — Full Diagnostics for Any IP or Domain | Perfping
Run every relevant network, DNS, email, and security check for an IP or domain in one click: ping from global nodes across 5 continents, HTTP, DNS records, M...
|
87 % |
|
dnsbin.ca — DNS inspection toolbox
DNS lookup, propagation, DNSSEC, RDAP, reverse DNS, mail health, discovery, and shareable snapshots.
|
87 % |
|
DNStest.dk
We offers easy-to-use, simple and completely free tools, for your DNS and website needs. DIG, WHOIS lookups, HTTP queries, Bottleneck testing and more.
|
87 % |
|
Blahdns -- a hobby adblock DNS resolver support HTTP/3, DoH, DoT, DoQ, DNSCryptv2
DNS, AdBlock, dns-over-dtls, dnscrypt, doh, dot, dns-over-https, dns-over-tls, http/3, Yggdrasil, EDNS, no-logs, dnssec
|
87 % |
|
StripDNS Webmaster Tools · StripDNS
WHOIS, DNS, IP, SSL/TLS, HTTP headers, and network troubleshooting tools in one dashboard.
|
87 % |
|
Pingaroo.dev – Public Website Diagnostics
Pingaroo.dev runs uptime, SSL, headers, DNS, redirects, and cache diagnostics with fast, structured reports.
|
87 % |
|
Online Ping, Health Check, Port Monitor, SSL, DNS, Blacklist & WHOIS Tool | Pingero
Free online ping, website health check, port monitor, SSL certificate check, DNS lookup, email DNS check, blacklist check, reverse DNS/PTR lookup, HTTP statu...
|
87 % |
|
routevogel
Free engineering tools for network operators: AS lookup, DNS, whois, subnet lookup, CIDR aggregator. With BGP routing history, RPKI validation, DNSSEC indica...
|
87 % |
|
DNSTech.com — DNS Protocol Deep-Dives
Technical DNS content: protocol and packet mechanics, DNS over HTTPS and TLS, record internals, negative caching, and automating DNS with APIs and code.
|
86 % |
|
ShadowDNS | AI Tool, Shadow IT & DNS Visibility Reports
Upload a DNS log. Detect AI tools, shadow IT, and suspicious DNS activity from logs you already collect. No agents, no deployment.
|
86 % |
|
IntoDNS.AI — DNS & Mail Server Checker (SPF, DKIM, DMARC, DNSSEC)
Check DNS and mail server health in one report: SPF, DKIM, DMARC, DNSSEC, MTA-STS, BIMI, blacklists. Free, no signup. Not affiliated with intodns.com.
|
86 % |
|
DNSIntel — AI-Powered DNS Intelligence
DNSIntel: active DNS-layer protection against ransomware, malware, botnets, C2, and phishing. AI-powered blocking before malicious content reaches your users...
|
86 % |
Detected social media networks