topicsforclass.com - robtex.com
topicsforclass.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::ac43:c841🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:3cc2🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.60.194Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.200.65🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | poppy.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2621🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | poppy.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c221🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | poppy.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2221🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | poppy.ns.cloudflare.com | ||||||
| A | 108.162.194.33🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | poppy.ns.cloudflare.com | ||||||
| A | 162.159.38.33Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | poppy.ns.cloudflare.com | ||||||
| A | 172.64.34.33🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | poppy.ns.cloudflare.com | ||||||
| NS | trevor.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c9a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trevor.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c39a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | trevor.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:239a🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | trevor.ns.cloudflare.com | ||||||
| A | 108.162.195.154🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trevor.ns.cloudflare.com | ||||||
| A | 162.159.44.154Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trevor.ns.cloudflare.com | ||||||
| A | 172.64.35.154🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trevor.ns.cloudflare.com | ||||||
| MX | _dc-mx.5f689a16082a.topicsforclass.com ⭐ | ||||||
| A | 2606:4700:3030::ac43:9128🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 2606:4700:3035::6815:477c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 67.202.70.12🇺🇸 BigScoots67.202.70.0/24 MNT-BIGSC-1 route 067.202.070.000/24 AS394303 | ||||||
| PTR | nginx-alpha.securedserverspace.com | ||||||
| TXT | v=spf1 a mx include:spf.securedserverspace.com ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.60.194, 172.67.200.65 | ||||||
| IPv6 | 2606:4700:3033::ac43:c841, 2606:4700:3035::6815:3cc2 | ||||||
| SOA | poppy.ns.cloudflare.comdns@cloudflare.com serial=2399421979 | ||||||
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=1774371157 | ||||||
Subdomains
mail.topicsforclass.com |
Same first word
topicsforclass.com |
DNS History
7 records (7 active, 0 former)
●NSpoppy.ns.cloudflare.com2026-03-23 → 2026-03-24 · 2 obs
● 2026-03-24 17:02:16
●NStrevor.ns.cloudflare.com2026-03-23 → 2026-03-24 · 2 obs
● 2026-03-24 17:02:16
●MX_dc-mx.5f689a16082a.topicsforclass.com2026-03-23 → 2026-03-24 · 2 obs
● 2026-03-24 17:02:16
●A104.21.60.1942026-03-23 → 2026-03-24 · 2 obs
● 2026-03-24 17:02:16
●A172.67.200.652026-03-23 → 2026-03-24 · 2 obs
● 2026-03-24 17:02:16
●A2606:4700:3033::ac43:c8412026-03-23 → 2026-03-24 · 2 obs
● 2026-03-24 17:02:16
●A2606:4700:3035::6815:3cc22026-03-23 → 2026-03-24 · 2 obs
● 2026-03-24 17:02:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| topicsforclass.com | poppy.ns.cloudflare.com, trevor.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.154
NS records: poppy.ns.cloudflare.com, trevor.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for topicsforclass.com (unsigned zone)
⏱️ Timing
Total: 1338ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.60.194, 172.67.200.65 |
| AAAA | 2 | 2606:4700:3033::ac43:c841, 2606:4700:3035::6815:3cc2 |
| NS | 2 | poppy.ns.cloudflare.com, trevor.ns.cloudflare.com |
| MX | 1 | _dc-mx.5f689a16082a.topicsforclass.com ( |
| TXT | 1 | v=spf1 a mx include:spf.securedserverspa |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | poppy.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (poppy.ns.cloudflare.com, poppy.ns.cloudflare.com, poppy.ns.cloudflare.com...)
Analysis
Hierarchy
topicsforclass.com is the parent of mail.topicsforclass.com.
IP Addresses
topicsforclass.com points to four IP numbers: 2606:4700:3033::ac43:c841, 2606:4700:3035::6815:3cc2, 104.21.60.194 and 172.67.200.65.
Other host names including 78avav.com, kncsa.com, rinjanikingdom.com, www.ayawalk.com and hgclickerpress.com share IP numbers with topicsforclass.com.
Name Servers
topicsforclass.com's delegation uses two name servers, poppy.ns.cloudflare.com and trevor.ns.cloudflare.com.
topicsforclass.com shares the same name server setup as other domains, for example rubynodes.io, for-rent.com, selloff.us, tulirnaturals.com and budohurt.pl.
topicsforclass.com at least partially shares name servers with other domains, including vpexe.cn, kirkbydesign.com, vso.us, 51ttxue.com and fusionspace.ca.
These name servers are commonly used with the name servers quinton.ns.cloudflare.comalaric.ns.cloudflare.combarbara.ns.cloudflare.comkay.ns.cloudflare.comluciana.ns.cloudflare.com and linda.ns.cloudflare.com.
Host names with six IP numbers:
poppy.ns.cloudflare.com points to: 2606:4700:50::a29f:2621, 2803:f800:50::6ca2:c221, 2a06:98c1:50::ac40:2221, 108.162.194.33, 162.159.38.33 and 172.64.34.33.
trevor.ns.cloudflare.com points to: 2606:4700:58::a29f:2c9a, 2803:f800:50::6ca2:c39a, 2a06:98c1:50::ac40:239a, 108.162.195.154, 162.159.44.154 and 172.64.35.154.
Mail Servers
topicsforclass.com is handled by a single mail server, _dc-mx.5f689a16082a.topicsforclass.com.
_dc-mx.5f689a16082a.topicsforclass.com points to three IPs: 2606:4700:3030::ac43:9128, 2606:4700:3035::6815:477c and 67.202.70.12.