simtk.org - dns.ninja
simtk.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 171.64.65.11🇺🇸 STANFORD171.64.0.0/14 AS32 proxy-registered route by Cogent | ||||||
| NS | ns1.simtk.org ⭐ | ||||||
| A | 171.64.65.169🇺🇸 STANFORD171.64.0.0/14 AS32 proxy-registered route by Cogent | ||||||
| NS | ns2.simtk.org | ||||||
| A | 171.64.65.31🇺🇸 STANFORD171.64.0.0/14 AS32 proxy-registered route by Cogent | ||||||
| MX | mail.simtk.org ⭐ | ||||||
| A | 171.64.65.11🇺🇸 STANFORD171.64.0.0/14 AS32 proxy-registered route by Cogent | ||||||
| TXT | google-site-verification=Xx_aAa-prZwVtJQMyopBPhnPrmNl3nL01pmkKP3m0Hw | ||||||
| TXT | v=spf1 ip4:171.64.64.25 ip4:171.64.64.26 ip4:171.64.64.27 ip4:171.64.65.11 ip... | ||||||
| SOA | ns1.simtk.orgwebmaster@simtk.org serial=20130322 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1782656894 | ||||||
rank #29850 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #254,670
Subdomains
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.simtk.org2015-08-25 → 2026-06-28 · 2 obs
● 2026-06-28 15:00:42
●NSns2.simtk.org2015-08-25 → 2026-06-28 · 2 obs
● 2026-06-28 15:00:42
●MXmail.simtk.org2015-08-25 → 2026-06-28 · 2 obs
● 2026-06-28 15:00:42
●A171.64.65.112016-07-31 → 2026-06-28 · 3 obs
● 2016-07-31 17:23:42
● 2026-06-28 15:00:42
○A171.65.102.2032015-08-25 → 2016-03-31 · 4 obs
● 2016-03-31 23:15:54
○ 2016-07-31 17:23:42
○ 2026-06-28 15:00:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org | - |
| simtk.org | ns2.simtk.org, ns1.simtk.org | 2 records |
✅ Authoritative Response
Server:171.64.65.31
NS records: ns2.simtk.org, ns1.simtk.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for simtk.org (unsigned zone)
⏱️ Timing
Total: 288ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 171.64.65.11 |
| NS | 2 | ns1.simtk.org, ns2.simtk.org |
| MX | 1 | mail.simtk.org (pri: 1) |
| TXT | 2 | v=spf1 ip4:171.64.64.25 ip4:171.64.64.26, google-site-verification=Xx_aAa-prZwVtJQ |
| SOA | 1 | ns1.simtk.org webmaster.simtk.org |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.simtk.org, ns2.simtk.org)
Analysis
Hierarchy
The domain simtk.org is a parent of ns1.simtk.org, mail.simtk.org, ns2.simtk.org and lists.simtk.org.
IP Addresses
simtk.org points to a single IP number: 171.64.65.11.
Other hosts including simtk.stanford.edu, mail.simtk.org and simtk.com share IP addresses with simtk.org.
Name Servers
simtk.org uses two name servers for its delegation: ns1.simtk.org and ns2.simtk.org.
simtk.org uses the same name servers as other domains — simtk.com being one example.
Each of ns1.simtk.org and ns2.simtk.org has one IP address: ns1.simtk.org uses 171.64.65.169 and ns2.simtk.org uses 171.64.65.31.
Mail Servers
simtk.org has one mail server: mail.simtk.org.
mail.simtk.org directs to just one IP number, 171.64.65.11.