rb.csail.mit.edu - robtex.com
rb.csail.mit.edu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 128.30.64.149🇺🇸 MIT-GATEWAYS128.30.0.0/15 | ||||||
| PTR | rb.csail.mit.edu | ||||||
csail.mit.edu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 128.52.132.19🇺🇸 MIT-GATEWAYS128.52.0.0/16 | ||||||
| NS | auth-ns0.csail.mit.edu ⭐ | ||||||
| NS | auth-ns1.csail.mit.edu | ||||||
| NS | auth-ns2.csail.mit.edu | ||||||
| NS | auth-ns3.csail.mit.edu | ||||||
| MX | incoming.csail.mit.edu ⭐ | ||||||
| TXT | amazonses:IerRJDARc/cLlerHPYOegkFha65TE37+Fg4OplbhBvM= | ||||||
| TXT | 2549095 | ||||||
| TXT | airtable-verification=46ae122907d40a1413b6a05898774435 | ||||||
| TXT | v=spf1 ip4:128.30.0.0/15 ip4:18.26.0.0/16 ip4:18.31.0.0/16 ip4:128.52.0.0/16 ... | ||||||
| SOA | auth-ns0.csail.mit.edubug-domain@csail.mit.edu serial=253656749 | ||||||
WOT: SAFE (92/100)
PTR for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A128.30.64.1491970-01-01 → 2026-04-23 · 2 obs
● 1970-01-01 00:00:00
● 2026-04-23 23:29:56
● 2026-04-23 23:29:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| edu | a.edu-servers.net, b.edu-servers.net, c.edu-servers.net, d.edu-servers.net... | - |
| mit.edu | usw2.akam.net, asia1.akam.net, asia2.akam.net, use2.akam.net... | - |
| csail.mit.edu | auth-ns0.csail.mit.edu, auth-ns1.csail.mit.edu, auth-ns2.csail.mit.edu, auth-ns3.csail.mit.edu | 6 records |
✅ Authoritative Response
Server:18.220.24.142
NS records: auth-ns0.csail.mit.edu, auth-ns1.csail.mit.edu, auth-ns2.csail.mit.edu, auth-ns3.csail.mit.edu
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mit.edu (unsigned zone)
⏱️ Timing
Total: 441ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 128.30.64.149 |
📌 Glue Records Collected
Total: 6
In-bailiwick: 6 (auth-ns0.csail.mit.edu, auth-ns3.csail.mit.edu, auth-ns2.csail.mit.edu...)
Analysis
IP Addresses
rb.csail.mit.edu resolves to one IP number: 128.30.64.149.