Domains: full A/AAAA/MX/NS/TXT/SOA/CNAME audit. IPs: reverse DNS (PTR) lookup. Resolves over DNS-over-HTTPS (Google/Cloudflare) when the host blocks UDP/53, so it works on shared hosting.
Results for gmail.com
| Type | Value | TTL | Priority |
|---|---|---|---|
| A | 142.251.186.83 |
74 | - |
| A | 142.251.186.17 |
74 | - |
| A | 142.251.186.18 |
74 | - |
| A | 142.251.186.19 |
74 | - |
| AAAA | 2607:f8b0:4023:100b::13 |
300 | - |
| AAAA | 2607:f8b0:4023:100b::53 |
300 | - |
| AAAA | 2607:f8b0:4023:100b::12 |
300 | - |
| AAAA | 2607:f8b0:4023:100b::11 |
300 | - |
| MX | alt4.gmail-smtp-in.l.google.com |
1125 | 40 |
| MX | gmail-smtp-in.l.google.com |
1125 | 5 |
| MX | alt1.gmail-smtp-in.l.google.com |
1125 | 10 |
| MX | alt2.gmail-smtp-in.l.google.com |
1125 | 20 |
| MX | alt3.gmail-smtp-in.l.google.com |
1125 | 30 |
| NS | ns2.google.com |
13483 | - |
| NS | ns3.google.com |
13483 | - |
| NS | ns1.google.com |
13483 | - |
| NS | ns4.google.com |
13483 | - |
| TXT | v=spf1 redirect=_spf.google.com |
158 | - |
| TXT | yahoo-verification-key=dKYwfVbaxatmcXiXy6LDAxMRirqpOq5tj98iJv9qWVk= |
158 | - |
| TXT | yahoo-verification-key=+eZwIPSgRxkAUzDtqT8Qhk+j4A1JF6V/wtGoyGTkELY= |
158 | - |
| TXT | globalsign-smime-dv=CDYX+XFHUw2wml6/Gb8+59BsH31KzUr6c1l2BPvqKX8= |
158 | - |
| SOA | ns1.google.com |
60 | - |
Bulk DNS Audit
Audited so far: 219 indicators.
▶ Run Bulk DNS Audit (auto-continues)
Sweeps every stored domain/IP lacking DNS data, in time-boxed batches that auto-continue in the browser until done.
For the whole database at once (no browser), run php dns-audit.php bulk=run on the CLI or via cron.
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