Tools
DNS Record Lookup
See a domain's DNS records in seconds: A, AAAA, MX, TXT, NS, CNAME and SOA. The first step of e-mail (SPF/DKIM/DMARC), site migration and technical SEO checks. Free, no sign-up.
Enter a domain and press "Look up"; records appear here.
DNS Records: Your Domain's Invisible Control Panel
DNS (Domain Name System) is the address book that introduces your domain to the rest of the internet. When a browser opens a site, it first asks DNS: "which server hosts this domain?" The answer comes from the A record (IPv4) or the AAAA record (IPv6). MX records decide which server receives your e-mail, and NS records say who manages the domain. A CNAME maps one name to another (e.g. www → root domain), and SOA is the zone's identity card.
One of the most valuable record types here is TXT: the three pillars of e-mail security — SPF, DKIM and DMARC — live there. Most "my mail lands in spam" complaints trace back to missing or broken TXT records. DNS is also critical during migrations: pointing A/AAAA records to the correct new IP and shortening TTLs before the move are the keys to a zero-downtime switch. When something breaks, checking DNS first saves hours of debugging in the wrong place.
80% of e-mail and migration problems start at DNS.
Site migration, e-mail setup or a "mail lands in spam" problem? Let's harden your technical foundation from DNS to SPF/DKIM together.