oc-waterloo.de - robtex.com
oc-waterloo.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3036::6815:426🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:839f🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.4.38Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.131.159🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | martha.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:268e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martha.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c28e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | martha.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:228e🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | martha.ns.cloudflare.com | ||||||
| A | 108.162.194.142🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martha.ns.cloudflare.com | ||||||
| A | 162.159.38.142Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martha.ns.cloudflare.com | ||||||
| A | 172.64.34.142🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martha.ns.cloudflare.com | ||||||
| NS | nash.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bd1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nash.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1d1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | nash.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21d1🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | nash.ns.cloudflare.com | ||||||
| A | 108.162.193.209🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nash.ns.cloudflare.com | ||||||
| A | 172.64.33.209🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nash.ns.cloudflare.com | ||||||
| A | 173.245.59.209🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | nash.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.4.38, 172.67.131.159 | ||||||
| IPv6 hints | 2606:4700:3036::6815:426, 2606:4700:3036::ac43:839f | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=92, name=cloudflare-ech.com | ||||||
| SOA | martha.ns.cloudflare.comdns@cloudflare.com serial=2400288634 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1776051907 | ||||||
Same first word
oc-waterloo.nl |
oc-waterloo.de |
oc-waterloo.com |
DNS History
10 records (6 active, 4 former)
●NSmartha.ns.cloudflare.com2026-04-04 → 2026-04-13 · 2 obs
● 2026-04-13 04:12:34
●NSnash.ns.cloudflare.com2026-04-04 → 2026-04-13 · 2 obs
● 2026-04-13 04:12:34
●A104.21.4.382026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 04:12:34
●A172.67.131.1592026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 04:12:34
○A188.114.96.02026-04-04 → 2026-04-04 · 2 obs
○ 2026-04-13 04:12:34
○A188.114.97.02026-04-04 → 2026-04-04 · 2 obs
○ 2026-04-13 04:12:34
●A2606:4700:3036::6815:4262026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 04:12:34
●A2606:4700:3036::ac43:839f2026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 04:12:34
○A2a06:98c1:3120::2026-04-04 → 2026-04-04 · 2 obs
○ 2026-04-13 04:12:34
○A2a06:98c1:3121::2026-04-04 → 2026-04-04 · 2 obs
○ 2026-04-13 04:12:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| oc-waterloo.de | martha.ns.cloudflare.com, nash.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.193.209
NS records: martha.ns.cloudflare.com, nash.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for oc-waterloo.de (unsigned zone)
⏱️ Timing
Total: 601ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.131.159, 104.21.4.38 |
| AAAA | 2 | 2606:4700:3036::6815:426, 2606:4700:3036::ac43:839f |
| NS | 2 | martha.ns.cloudflare.com, nash.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | martha.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
oc-waterloo.de resolves to four IPs: 2606:4700:3036::6815:426, 2606:4700:3036::ac43:839f, 104.21.4.38 and 172.67.131.159.
Other host names, for instance sieiti.gov.sb.cdn.cloudflare.net, h2p.pl, klicktool.com, (0x736578)-(0x787878)-gay.com and www.synapseresults.com.cdn.cloudflare.net share IP numbers with oc-waterloo.de.
Name Servers
oc-waterloo.de has two name servers: martha.ns.cloudflare.com and nash.ns.cloudflare.com.
oc-waterloo.de shares the same name server setup as other domains, for example vandorp-rotterdam.eu, orclimateg.nl, gbs-cloud.nl, vitaconnect.app and tb-cloud.nl.
oc-waterloo.de shares some name servers with other domains, for example flee.us, lrgr.io, ijewellry.net, bloomon.dk and luxonella.com.
These name servers are often used together with duke.ns.cloudflare.com, aspen.ns.cloudflare.com and donna.ns.cloudflare.com.
Host names with six IP numbers: martha.ns.cloudflare.com points to: 2606:4700:50::a29f:268e, 2803:f800:50::6ca2:c28e, 2a06:98c1:50::ac40:228e, 108.162.194.142, 162.159.38.142 and 172.64.34.142; nash.ns.cloudflare.com points to: 2606:4700:58::adf5:3bd1, 2803:f800:50::6ca2:c1d1, 2a06:98c1:50::ac40:21d1, 108.162.193.209, 172.64.33.209 and 173.245.59.209.