DNS TXT Record Splitter: Split Long Values Into 255-Byte Strings
Split long TXT values (DKIM keys, SPF) into 255-byte quoted strings for BIND and Cloudflare, or join split strings back into one value.
October 6, 2026
Split a 2048-bit DKIM TXT Record Over 255 Characters
Split a 2048-bit DKIM TXT record over 255 characters correctly in cPanel, DirectAdmin, Cloudflare and BIND, with lab-tested commands to build and verify the strings.
October 6, 2026
CAA and TLSA Checker: Free CAA Record and DANE Test
Reads CAA records (including those inherited from parent domains), compares them with the CA of the live certificate, and checks TLSA records for HTTPS and the MX hosts against DNSSEC and the served certificate.
September 30, 2026
Domain Health Checker: Free Score for DNS, SSL, Email and Headers
One scan that scores a domain out of 100 across DNS, HTTPS, security headers and email authentication, with a prioritised list of fixes.
September 30, 2026
SIP SRV Records: DNS Setup for 3 Transport Types
How SIP clients find a server through DNS (NAPTR, then SRV, then A/AAAA), the exact records to create for UDP, TCP and TLS, how priority and weight give failover, and how to test the result.
September 30, 2026
DNSSEC Checker
Check whether a domain is signed with DNSSEC: DS records at the registry, DNSKEY records in the zone, matching key tags, algorithms and live validation through Cloudflare and Google.
September 29, 2026
Website Down Checker (Is It Down?)
Check whether a website is up from our server: HTTP status, redirect chain, response time, server software and security headers — a quick is-it-down-or-just-me test.
September 29, 2026
WHOIS Lookup: Free RDAP Domain and IP Owner Check
Look up domain registration (registrar, dates, status, name servers, DNSSEC), IP address ownership (network, range, abuse contact) and AS numbers using the registries' RDAP service.
September 29, 2026
Reverse DNS Lookup: Free Bulk PTR Check for 25 IPs
Look up the PTR records for up to 25 IPv4 or IPv6 addresses at once and check that each hostname resolves back to the same IP (forward-confirmed rDNS).
September 29, 2026
DNS Lookup: Query Any Record Type
Look up A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, DS, DNSKEY and HTTPS records for any domain from 17 public resolvers or the domain's own authoritative name server, with DNSSEC validation status.
September 29, 2026
DNS Propagation Checker
Check whether a DNS change has reached 17 public resolvers run by Google, Cloudflare, Quad9, OpenDNS, AdGuard, Yandex, AliDNS and others, with TTLs and a consensus view.
September 29, 2026
Cloudflare Error 521, 522 and 525 on cPanel: Fixes
Diagnose and resolve Cloudflare 521 (origin refused), 522 (connection timed out) and 525 (SSL handshake failed) on cPanel servers by checking CSF blocks, Apache status, origin certificates and the SSL mode, with commands to verify each fix.
September 29, 2026