ic37class.org - robtex.com
ic37class.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::ac43:c958🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:2a39🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.42.57Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.201.88🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | dora.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a6c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c06c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:206c🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 108.162.192.108🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 172.64.32.108🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| A | 173.245.58.108🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dora.ns.cloudflare.com | ||||||
| NS | eric.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b70🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | eric.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c170🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | eric.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2170🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | eric.ns.cloudflare.com | ||||||
| A | 108.162.193.112🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | eric.ns.cloudflare.com | ||||||
| A | 172.64.33.112🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | eric.ns.cloudflare.com | ||||||
| A | 173.245.59.112🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | eric.ns.cloudflare.com | ||||||
| MX | mx1-us1.ppe-hosted.com ⭐ | ||||||
| A | 67.231.154.162🇺🇸 Proofpoint67.231.154.0/24 Inc. | ||||||
| PTR | mx1-us1.ppe-hosted.com | ||||||
| A | 148.163.129.50🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc. | ||||||
| PTR | mx1-us1.ppe-hosted.com | ||||||
| MX | mx2-us1.ppe-hosted.com(20) | ||||||
| A | 67.231.154.163🇺🇸 Proofpoint67.231.154.0/24 Inc. | ||||||
| PTR | mx2-us1.ppe-hosted.com | ||||||
| A | 148.163.129.51🇺🇸 AS13916148.163.129.0/24 Proofpoint Inc. | ||||||
| PTR | mx2-us1.ppe-hosted.com | ||||||
| TXT | MS=ms83704806 | ||||||
| TXT | google-site-verification=Kw6oq2o2jYeOazoJruS0s5KpfCvt3EWTpBMajFtC_zQ | ||||||
| TXT | v=spf1 a:dispatch-us.ppe-hosted.com include:secureserver.net -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.42.57, 172.67.201.88 | ||||||
| IPv6 hints | 2606:4700:3033::ac43:c958, 2606:4700:3035::6815:2a39 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=33, name=cloudflare-ech.com | ||||||
| SOA | dora.ns.cloudflare.comdns@cloudflare.com serial=2401785786 | ||||||
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=1778424709 | ||||||
Same first word
ic37class.org |
DNS History
8 records (8 active, 0 former)
●NSdora.ns.cloudflare.com2026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
●NSeric.ns.cloudflare.com2026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
●MXmx1-us1.ppe-hosted.com2026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
●MXmx2-us1.ppe-hosted.com2026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
●A104.21.42.572026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
●A172.67.201.882026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
●A2606:4700:3033::ac43:c9582026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
●A2606:4700:3035::6815:2a392026-04-20 → 2026-05-10 · 2 obs
● 2026-05-10 15:07:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| ic37class.org | dora.ns.cloudflare.com, eric.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.193.112
NS records: dora.ns.cloudflare.com, eric.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ic37class.org (unsigned zone)
⏱️ Timing
Total: 638ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.42.57, 172.67.201.88 |
| AAAA | 2 | 2606:4700:3035::6815:2a39, 2606:4700:3033::ac43:c958 |
| NS | 2 | dora.ns.cloudflare.com, eric.ns.cloudflare.com |
| MX | 2 | mx1-us1.ppe-hosted.com (pri: 10), mx2-us1.ppe-hosted.com (pri: 20) |
| TXT | 3 | MS=ms83704806, google-site-verification=Kw6oq2o2jYeOazo... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | dora.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
ic37class.org maps to four IP numbers: 2606:4700:3033::ac43:c958, 2606:4700:3035::6815:2a39, 104.21.42.57 and 172.67.201.88.
other host names include mail.jjahnke.net, masinlar.az, tekstacks.net, knwjmjujhadoo.site and hi888.onl; they share IP numbers with ic37class.org.
Name Servers
Two name servers dora.ns.cloudflare.com and eric.ns.cloudflare.com handle the delegation for ic37class.org.
ic37class.org shares the same name server setup as other domains, for instance breezip.com, robhaswell.co.uk, atlanticclass.org, whatismy(0x6675636b)ingip.com and sailingsource.com.
ic37class.org at least partially shares name servers with other domains, for instance myfuturewise.org.uk, ap-api.com, rarp.org, born-today.com and lose.info.
These name servers are commonly used with the following: pam.ns.cloudflare.com, major.ns.cloudflare.com, kay.ns.cloudflare.com and laylah.ns.cloudflare.com.
Six IP addresses per host:
dora.ns.cloudflare.com points to 2606:4700:50::adf5:3a6c, 2803:f800:50::6ca2:c06c, 2a06:98c1:50::ac40:206c, 108.162.192.108, 172.64.32.108 and 173.245.58.108; eric.ns.cloudflare.com points to 2606:4700:58::adf5:3b70, 2803:f800:50::6ca2:c170, 2a06:98c1:50::ac40:2170, 108.162.193.112, 172.64.33.112 and 173.245.59.112
Mail Servers
ic37class.org is handled by two mail servers: mx1-us1.ppe-hosted.com and mx2-us1.ppe-hosted.com.
ic37class.org uses the same mail server setup as other domains, for instance floridaweekly.com, chemclean.com, tthroofing.com, starktranslations.com and gonational.net.
ic37class.org shares at least partially some mail servers with other domains, for instance j-jtech.com, roadparts.com, gbag.net, apachedrive.com and gtechserve.com.
Host names with two IP numbers:
mx1-us1.ppe-hosted.com points to 67.231.154.162 and 148.163.129.50.
mx2-us1.ppe-hosted.com points to 67.231.154.163 and 148.163.129.51.