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 instructure.com
| Type | Value | TTL | Priority |
|---|---|---|---|
| A | 151.101.2.132 |
255 | - |
| A | 151.101.66.132 |
255 | - |
| MX | aspmx3.googlemail.com |
3600 | 20 |
| MX | alt1.aspmx.l.google.com |
3600 | 10 |
| MX | aspmx2.googlemail.com |
3600 | 20 |
| MX | alt2.aspmx.l.google.com |
3600 | 10 |
| MX | aspmx.l.google.com |
3600 | 0 |
| NS | ns-996.awsdns-60.net |
21264 | - |
| NS | ns-1799.awsdns-32.co.uk |
21264 | - |
| NS | ns-1354.awsdns-41.org |
21264 | - |
| NS | ns-2.awsdns-00.com |
21264 | - |
| TXT | hcp-domain-verification=24de36f1e2e1ad573ac320a62707e7ec8ac0cce2dccf7985914a8d0fea08c108 |
3600 | - |
| TXT | drift-domain-verification=608941e9992460f0ccd58daa1decf1808863da188a92910658284fc6bc8bd525 |
3600 | - |
| TXT | docusign=1ca86ab9-2ddb-4d63-b719-4798811390ca |
3600 | - |
| TXT | docker-verification=7555bc65-ce7a-4ed2-8028-4bf0274d2c5b |
3600 | - |
| TXT | zoho-verification=zb08654551.zmverify.zoho.com |
3600 | - |
| TXT | fastly-domain-delegation-jpv3oeoqr3aouxwkbhpb-00480650-2025-07-31 |
3600 | - |
| TXT | bugcrowd-verification=817deedf9414a9ea878ff255c42a9afa |
3600 | - |
| TXT | adobe-idp-site-verification=4287460e7429c97ad75b995bdef6b0d7ff1c9b541946abfaf2851e676d0f4693 |
3600 | - |
| TXT | 2acd5847c66f4325be05af390213b8c7.instructure.com |
3600 | - |
| TXT | apple-domain-verification=8oZZjgKWADRgkWui |
3600 | - |
| TXT | ZOOM_verify_Up1Opd4-S9ChtRORps16qw |
3600 | - |
| TXT | google-site-verification=WSlNW84_Zm6mbOaM35pQyLJUt7-OtVXNjzXe9LT-eJI |
3600 | - |
| TXT | anthropic-domain-verification-2pz98m=hO4bmZQTC5gutJZcanKeagAWR |
3600 | - |
| TXT | v=spf1 include:_spf.google.com include:amazonses.com include:_spf.q4press.com include:mktomail.com include:_spf.salesforce.com ip4:64.95.144.196 ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ip4:192.174.90.242 ip4:208.117.49.186 -all |
3600 | - |
| TXT | m6bll7f2q2d2uidl6cq273dma0 |
3600 | - |
| TXT | astro-domain-verification=cmbjhzn9b0c0h01pimts1v2h1 |
3600 | - |
| TXT | sprout-social-715adb3f-6166-4bc5-b3d9-b1faf326db31 |
3600 | - |
| TXT | miro-verification=0ee36f655f5ce0499683c255714fcdbe990af0e0 |
3600 | - |
| TXT | atlassian-domain-verification=pS8CbCDhL3R1mMujl07LwhltWFcJtks8mrBa7l/1uocODR9nkzF908HCisTISJqI |
3600 | - |
| TXT | stripe-verification=B0532755BD8D4E0C6B601C3FCDB1DF203E57A8D2CDA9A7F9F84F8BD64E21534D |
3600 | - |
| TXT | canva-site-verification=jRPvv0c9AZGTaJIIPIpfAQ |
3600 | - |
| TXT | anthropic-domain-verification-4mh4xs=A4vkPXqJIA4VVi9GAbxDEPohr |
3600 | - |
| TXT | figma-domain-verification=848b9254b032bfe488e955a140a8a63cb345186c3c69b7200f7843eca6071ead-1759959287 |
3600 | - |
| TXT | onetrust-domain-verification=5ef48d8081ac4ab6adce9ed80c92f4e5 |
3600 | - |
| TXT | google-site-verification=Som6bbrVvI5NLh3lTcpNSbp6_0GpFezQQ9xo6CrSHOQ |
3600 | - |
| TXT | anthropic-domain-verification-vz61c8=kfBobb4vvH2M9xtsZhFajtKHr |
3600 | - |
| TXT | MS=ms20700021 |
3600 | - |
| TXT | google-site-verification=3SDlSr_fW_6bYm0BDDK4ZXs6I5yKtB4WyXL3GNozx8I |
3600 | - |
| TXT | jamf-site-verification=-bAufptjYdQAfzF-s7PBtQ |
3600 | - |
| TXT | pendo-domain-verification=2l9wI_SzXdfdzA0ZCZUES4O0FS0 |
3600 | - |
| TXT | google-site-verification=bC89ByaBs616PDmJLrSUG5RS3fyA8agwCtXch9G0GL0 |
3600 | - |
| TXT | anthropic-domain-verification-pz1pr3=sZkvFuBJeSdmEXoj4KJYYQW8Z |
3600 | - |
| TXT | openai-domain-verification=dv-wb5qFISTkDoktTMXLsDMVuZ0 |
3600 | - |
| TXT | mongodb-site-verification=UyyatYgRcdnc3W9g8StgD1OK8wfcIouE |
3600 | - |
| TXT | canva-site-verification=jiASD5n0aNnvUnfIP1w4XA |
3600 | - |
| TXT | zapier-domain-verification-challenge=fe79b183-171c-432c-bf5d-48b3e73fd0af |
3600 | - |
| SOA | ns-2.awsdns-00.com |
900 | - |
Bulk DNS Audit
Audited so far: 4,998 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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