duckmath.org - robtex.com
duckmath.org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3034::6815:3958🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:a24a🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.57.88Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.162.74🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | gloria.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2610🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gloria.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c210🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | gloria.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2210🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | gloria.ns.cloudflare.com | ||||||
| A | 108.162.194.16🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gloria.ns.cloudflare.com | ||||||
| A | 162.159.38.16Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gloria.ns.cloudflare.com | ||||||
| A | 172.64.34.16🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gloria.ns.cloudflare.com | ||||||
| NS | phil.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b89🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | phil.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c189🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | phil.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2189🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | phil.ns.cloudflare.com | ||||||
| A | 108.162.193.137🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | phil.ns.cloudflare.com | ||||||
| A | 172.64.33.137🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | phil.ns.cloudflare.com | ||||||
| A | 173.245.59.137🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | phil.ns.cloudflare.com | ||||||
| MX | mx1.emailsrvr.com ⭐ | ||||||
| A | 146.20.161.1🇺🇸 RACKSPACE-IAD146.20.0.0/16 Rackspace US Inc | ||||||
| PTR | mx1.emailsrvr.com | ||||||
| MX | mx2.emailsrvr.com(20) | ||||||
| A | 184.106.54.2🇺🇸 RACKSPACE-ORD184.106.54.0/24 Rackspace ORD | ||||||
| PTR | mx2.emailsrvr.com | ||||||
| TXT | google-site-verification=Kx0-QSjBxeGW2Hpn3v3_1nT_HSH3HfvA3hycEIAvOQc | ||||||
| TXT | v=spf1 include:emailsrvr.com ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.57.88, 172.67.162.74 | ||||||
| IPv6 | 2606:4700:3034::6815:3958, 2606:4700:3035::ac43:a24a | ||||||
| SOA | gloria.ns.cloudflare.comdns@cloudflare.com serial=2398913312 | ||||||
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=1773551953 | ||||||
Subdomains
Same first word
DNS History
8 records (8 active, 0 former)
●NSgloria.ns.cloudflare.com2026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
●NSphil.ns.cloudflare.com2026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
●MXmx1.emailsrvr.com2026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
●MXmx2.emailsrvr.com2026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
●A104.21.57.882026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
●A172.67.162.742026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
●A2606:4700:3034::6815:39582026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
●A2606:4700:3035::ac43:a24a2026-02-26 → 2026-03-23 · 2 obs
● 2026-03-23 23:24:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| duckmath.org | phil.ns.cloudflare.com, gloria.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.193.137
NS records: phil.ns.cloudflare.com, gloria.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1462ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.162.74, 104.21.57.88 |
| AAAA | 2 | 2606:4700:3034::6815:3958, 2606:4700:3035::ac43:a24a |
| NS | 2 | gloria.ns.cloudflare.com, phil.ns.cloudflare.com |
| MX | 2 | mx1.emailsrvr.com (pri: 10), mx2.emailsrvr.com (pri: 20) |
| TXT | 2 | google-site-verification=Kx0-QSjBxeGW2Hp, v=spf1 include:emailsrvr.com ~all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | gloria.ns.cloudflare.com dns.cloudflare. |
Analysis
Hierarchy
duckmath.org is a parent of db.duckmath.org and db2.duckmath.org.
IP Addresses
duckmath.org resolves to four IPs: 2606:4700:3034::6815:3958, 2606:4700:3035::ac43:a24a, 104.21.57.88 and 172.67.162.74.
Other host names such as mail.guraasratrust.com, parquenacionalrapanui.cl, dinweiqi.com, shapeupland.com and cursolidercoaching.com share IP numbers with duckmath.org.
Name Servers
duckmath.org is delegated to two name servers: gloria.ns.cloudflare.com and phil.ns.cloudflare.com.
duckmath.org uses the same name server setup as other domains, including ducklit.com, fullsusmtb.org, shabashaba.com, propodyssey.co.th and quizquack.com.
At least part of the name servers for duckmath.org are shared with other domains, for instance hmybxg.com, (0x65726f746963)bpm.com, dprmain.net, nubuiten.nl and kalsait.com.
These name servers are commonly used alongside vick.ns.cloudflare.com and benedict.ns.cloudflare.com.
Host names with six IP numbers:
gloria.ns.cloudflare.com points to: 2606:4700:50::a29f:2610, 2803:f800:50::6ca2:c210, 2a06:98c1:50::ac40:2210, 108.162.194.16, 162.159.38.16 and 172.64.34.16.
phil.ns.cloudflare.com points to: 2606:4700:58::adf5:3b89, 2803:f800:50::6ca2:c189, 2a06:98c1:50::ac40:2189, 108.162.193.137, 172.64.33.137 and 173.245.59.137.
Mail Servers
duckmath.org is handled by two mail servers: mx1.emailsrvr.com and mx2.emailsrvr.com.
duckmath.org uses the same mail server setup as other domains, for instance dorbinart.com, pearlandgym.com, easyfizzy.co.il, illumdesign.com and rogersdentistry.com.
duckmath.org shares at least some mail servers with other domains, for example oneilfh.com, metronorte.com.gt, af-arch.com, xintec.com and greenerdevelopment.com.
Hostnames with a single IP
mx1.emailsrvr.com resolves to: 146.20.161.1.
mx2.emailsrvr.com resolves to: 184.106.54.2.