mathfest.su - robtex.com
mathfest.su
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.21.0.181Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.128.45🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | gemma.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:261b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gemma.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c21b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | gemma.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:221b🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | gemma.ns.cloudflare.com | ||||||
| A | 108.162.194.27🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gemma.ns.cloudflare.com | ||||||
| A | 162.159.38.27Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gemma.ns.cloudflare.com | ||||||
| A | 172.64.34.27🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gemma.ns.cloudflare.com | ||||||
| NS | jay.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b7b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c17b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:217b🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 108.162.193.123🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 172.64.33.123🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| A | 173.245.59.123🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jay.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.0.181, 172.67.128.45 | ||||||
| SOA | gemma.ns.cloudflare.comdns@cloudflare.com serial=2399331350 | ||||||
su
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=650208518 | ||||||
Same first word
DNS History
9 records (4 active, 5 former)
●NSgemma.ns.cloudflare.com2026-03-25 → 2026-03-27 · 3 obs
● 2026-03-25 22:27:54
● 2026-03-27 07:46:26
●NSjay.ns.cloudflare.com2026-03-25 → 2026-03-27 · 3 obs
● 2026-03-25 22:27:54
● 2026-03-27 07:46:26
○NSlyoleck.fvds.ru2020-01-01 → 2020-01-01 · 3 obs
○ 2026-03-25 22:27:54
○ 2026-03-27 07:46:26
○NSns1.firstvds.ru2020-01-01 → 2020-01-01 · 3 obs
○ 2026-03-25 22:27:54
○ 2026-03-27 07:46:26
○NSns2.firstvds.ru2020-01-01 → 2020-01-01 · 3 obs
○ 2026-03-25 22:27:54
○ 2026-03-27 07:46:26
○MXmail.mathfest.su2020-01-01 → 2020-01-01 · 3 obs
○ 2026-03-25 22:27:54
○ 2026-03-27 07:46:26
●A104.21.0.1812026-03-25 → 2026-03-27 · 3 obs
● 2026-03-25 22:27:54
● 2026-03-27 07:46:26
●A172.67.128.452026-03-25 → 2026-03-27 · 3 obs
● 2026-03-25 22:27:54
● 2026-03-27 07:46:26
○A212.109.197.1122020-01-01 → 2020-01-01 · 3 obs
○ 2026-03-25 22:27:54
○ 2026-03-27 07:46:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| su | b.dns.ripn.net, d.dns.ripn.net, a.dns.ripn.net, f.dns.ripn.net... | 10 records |
| mathfest.su | gemma.ns.cloudflare.com, jay.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.27
NS records: gemma.ns.cloudflare.com, jay.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathfest.su (unsigned zone)
⏱️ Timing
Total: 623ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.128.45, 104.21.0.181 |
| NS | 2 | gemma.ns.cloudflare.com, jay.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | gemma.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 10
Out-of-bailiwick: 10 (f.dns.ripn.net, e.dns.ripn.net, d.dns.ripn.net...)
Analysis
IP Addresses
mathfest.su points to two IP numbers: 104.21.0.181 and 172.67.128.45.
Other host names, for instance fkuwiki8.chgzmmxw.cc, ikonikstuff.com, ascension-movement.com, rateitgamer.com and muonium.io share IP numbers with mathfest.su.
Name Servers
mathfest.su is delegated to two name servers: gemma.ns.cloudflare.com and jay.ns.cloudflare.com.
mathfest.su uses the same name server setup as other domains, for instance 077l.vip, moonlive.ink, visitlatrobecity.com, moonlive.asia and moonlive.vip.
mathfest.su shares name servers with other domains at least partially, for instance ticketpro.ca, anquanyu.net, macserve.org.uk, lucianos-games.com and diadia.com.es.
these name servers are often used together with the name servers lily.ns.cloudflare.com.
Host names with six IP numbers: gemma.ns.cloudflare.com points to 2606:4700:50::a29f:261b, 2803:f800:50::6ca2:c21b, 2a06:98c1:50::ac40:221b, 108.162.194.27, 162.159.38.27 and 172.64.34.27; jay.ns.cloudflare.com points to 2606:4700:58::adf5:3b7b, 2803:f800:50::6ca2:c17b, 2a06:98c1:50::ac40:217b, 108.162.193.123, 172.64.33.123 and 173.245.59.123.