teachstreet.com - robtex.com
teachstreet.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-1265.awsdns-30.org ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5304:f100::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1265.awsdns-30.org | ||||||
| A | 205.251.196.241🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1265.awsdns-30.org | ||||||
| NS | ns-1925.awsdns-48.co.uk ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5307:8500::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1925.awsdns-48.co.uk | ||||||
| A | 205.251.199.133🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1925.awsdns-48.co.uk | ||||||
| NS | ns-347.awsdns-43.com ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5301:5b00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-347.awsdns-43.com | ||||||
| A | 205.251.193.91🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-347.awsdns-43.com | ||||||
| NS | ns-599.awsdns-10.net ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5302:5700::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-599.awsdns-10.net | ||||||
| A | 205.251.194.87🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ip-205-251-194-87.defastlink.net | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Similar names
DNS History
13 records (4 active, 9 former)
●NSns-1265.awsdns-30.org2015-05-21 → 2026-03-18 · 2 obs
● 2015-05-21 20:55:50
● 2026-03-18 11:23:38
● 2026-03-18 11:23:38
●NSns-1925.awsdns-48.co.uk2015-05-21 → 2026-03-18 · 2 obs
● 2015-05-21 20:55:50
● 2026-03-18 11:23:38
● 2026-03-18 11:23:38
●NSns-347.awsdns-43.com2015-05-21 → 2026-03-18 · 2 obs
● 2015-05-21 20:55:50
● 2026-03-18 11:23:38
● 2026-03-18 11:23:38
●NSns-599.awsdns-10.net2015-05-21 → 2026-03-18 · 2 obs
● 2015-05-21 20:55:50
● 2026-03-18 11:23:38
● 2026-03-18 11:23:38
○MXalt1.aspmx.l.google.com2015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○MXalt2.aspmx.l.google.com2015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○MXaspmx.l.google.com2015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○MXaspmx2.googlemail.com2015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○MXaspmx3.googlemail.com2015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○A216.239.32.212015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○A216.239.34.212015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○A216.239.36.212015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
○A216.239.38.212015-05-21 → 2017-01-05 · 4 obs
● 2015-05-21 20:55:50
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
● 2017-01-05 08:43:16
○ 2026-03-18 11:23:34
○ 2026-03-18 11:23:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| teachstreet.com | ns-599.awsdns-10.net, ns-347.awsdns-43.com, ns-1265.awsdns-30.org, ns-1925.awsdns-48.co.uk | 1 record |
✅ Authoritative Response
Server: 205.251.193.91
NS records: ns-599.awsdns-10.net, ns-347.awsdns-43.com, ns-1265.awsdns-30.org, ns-1925.awsdns-48.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for teachstreet.com (unsigned zone)
⏱️ Timing
Total: 578ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-347.awsdns-43.com)
Analysis
Name Servers
teachstreet.com is delegated to four name servers: ns-347.awsdns-43.com, ns-599.awsdns-10.net, ns-1265.awsdns-30.org and ns-1925.awsdns-48.co.uk.
Host names with two IP numbers:
ns-347.awsdns-43.com points to: 2600:9000:5301:5b00::1 and 205.251.193.91
ns-599.awsdns-10.net points to: 2600:9000:5302:5700::1 and 205.251.194.87
ns-1265.awsdns-30.org points to: 2600:9000:5304:f100::1 and 205.251.196.241
ns-1925.awsdns-48.co.uk points to: 2600:9000:5307:8500::1 and 205.251.199.133