universityofoptions.com - robtex.com

universityofoptions.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:dd15🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:4645🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.70.69Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.221.21🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSarnold.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b45🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarnold.ns.cloudflare.com
A2803:f800:50::6ca2:c145🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRarnold.ns.cloudflare.com
A2a06:98c1:50::ac40:2145🇺🇸 Cloudflare2a06:98c1:50::/45
PTRarnold.ns.cloudflare.com
A108.162.193.69🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarnold.ns.cloudflare.com
A172.64.33.69🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarnold.ns.cloudflare.com
A173.245.59.69🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRarnold.ns.cloudflare.com
NSdana.ns.cloudflare.com
A2606:4700:50::adf5:3a69🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
A2803:f800:50::6ca2:c069🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdana.ns.cloudflare.com
A2a06:98c1:50::ac40:2069🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdana.ns.cloudflare.com
A108.162.192.105🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
A172.64.32.105🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
A173.245.58.105🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdana.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A142.250.31.27🇺🇸 Google142.250.31.0/24
PTRbj-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4023:3003::1a🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f26.1e100.net
A172.253.145.26🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c00::1b🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f27.1e100.net
PTRws-in-x1b.1e100.net
A173.194.76.27🇺🇸 Google173.194.76.0/24
PTRws-in-f27.1e100.net
TXTgoogle-site-verification=55XbcMaKkHU4lDZbsUipykxL6WWwwsI9FyrwgzrE1gA
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.70.69, 172.67.221.21
IPv6 hints2606:4700:3030::ac43:dd15, 2606:4700:3032::6815:4645
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=85, name=cloudflare-ech.com
SOAarnold.ns.cloudflare.comdns@cloudflare.com serial=2402895964

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778568446

Same first word

universityofoptions.com

DNS History

15 records (11 active, 4 former)

202120222023202420252026NSarnold.ns.cloudflare.comdana.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA104.21.70.69172.67.221.212606:4700:3030::ac43:dd152606:4700:3032::6815:4645104.24.122.16104.24.123.162606:4700:3033::6818:7b102606:4700:3034::6818:7a10
●NSarnold.ns.cloudflare.com2020-01-20 → 2026-05-12 · 2 obs
● 2020-01-20 05:00:52
● 2026-05-12 07:16:26
●NSdana.ns.cloudflare.com2020-01-20 → 2026-05-12 · 2 obs
● 2020-01-20 05:00:52
● 2026-05-12 07:16:26
●MXalt1.aspmx.l.google.com2020-01-20 → 2026-05-12 · 2 obs
● 2020-01-20 05:00:52
● 2026-05-12 07:16:26
●MXalt2.aspmx.l.google.com2020-01-20 → 2026-05-12 · 2 obs
● 2020-01-20 05:00:52
● 2026-05-12 07:16:26
●MXalt3.aspmx.l.google.com2020-01-20 → 2026-05-12 · 2 obs
● 2020-01-20 05:00:52
● 2026-05-12 07:16:26
●MXalt4.aspmx.l.google.com2020-01-20 → 2026-05-12 · 2 obs
● 2020-01-20 05:00:52
● 2026-05-12 07:16:26
●MXaspmx.l.google.com2020-01-20 → 2026-05-12 · 2 obs
● 2020-01-20 05:00:52
● 2026-05-12 07:16:26
●A104.21.70.692026-02-17 → 2026-05-12 · 3 obs
○ 2020-01-20 05:00:52
● 2026-02-17 15:58:56
● 2026-05-12 07:16:26
○A104.24.122.162020-01-20 → 2020-01-20 · 3 obs
● 2020-01-20 05:00:52
○ 2026-02-17 15:58:56
○ 2026-05-12 07:16:26
○A104.24.123.162020-01-20 → 2020-01-20 · 3 obs
● 2020-01-20 05:00:52
○ 2026-02-17 15:58:56
○ 2026-05-12 07:16:26
●A172.67.221.212026-02-17 → 2026-05-12 · 3 obs
○ 2020-01-20 05:00:52
● 2026-02-17 15:58:56
● 2026-05-12 07:16:26
●A2606:4700:3030::ac43:dd152026-02-17 → 2026-05-12 · 3 obs
○ 2020-01-20 05:00:52
● 2026-02-17 15:58:56
● 2026-05-12 07:16:26
●A2606:4700:3032::6815:46452026-02-17 → 2026-05-12 · 3 obs
○ 2020-01-20 05:00:52
● 2026-02-17 15:58:56
● 2026-05-12 07:16:26
○A2606:4700:3033::6818:7b102020-01-20 → 2020-01-20 · 3 obs
● 2020-01-20 05:00:52
○ 2026-02-17 15:58:56
○ 2026-05-12 07:16:26
○A2606:4700:3034::6818:7a102020-01-20 → 2020-01-20 · 3 obs
● 2020-01-20 05:00:52
○ 2026-02-17 15:58:56
○ 2026-05-12 07:16:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
universityofoptions.comdana.ns.cloudflare.com, arnold.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.69

NS records: dana.ns.cloudflare.com, arnold.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 272ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.221.21, 104.21.70.69
AAAA22606:4700:3030::ac43:dd15, 2606:4700:3032::6815:4645
NS2arnold.ns.cloudflare.com, dana.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT2google-site-verification=55XbcMaKkHU4lDZ, v=spf1 include:_spf.google.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1arnold.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dana.ns.cloudflare.com, dana.ns.cloudflare.com, dana.ns.cloudflare.com...)

Analysis

IP Addresses

universityofoptions.com refers to four IP numbers: 2606:4700:3030::ac43:dd15, 2606:4700:3032::6815:4645, 104.21.70.69 and 172.67.221.21.

Other host names, for instance consumerinforeport.com, zyzsyj.com, biddle.co.uk, www.irmaos.com and mostbet-car.xyz share IP numbers with universityofoptions.com.

Name Servers

universityofoptions.com's delegation uses two name servers: arnold.ns.cloudflare.com and dana.ns.cloudflare.com.

universityofoptions.com uses the same name server setup as other domains, such as securamax.us, acota.com, forumiks.com, marketmentorship.com and mailboxs.workers.dev.

universityofoptions.com at least partially shares name servers with other domains, including bpwconversions.info, birdflubook.com, funcloud.com, mytime.dk and bruchi.it.

These name servers are often used with dave.ns.cloudflare.com and joel.ns.cloudflare.com.

Host names with six IP numbers:

arnold.ns.cloudflare.com points to 2606:4700:58::adf5:3b45, 2803:f800:50::6ca2:c145, 2a06:98c1:50::ac40:2145, 108.162.193.69, 172.64.33.69 and 173.245.59.69.

dana.ns.cloudflare.com points to 2606:4700:50::adf5:3a69, 2803:f800:50::6ca2:c069, 2a06:98c1:50::ac40:2069, 108.162.192.105, 172.64.32.105 and 173.245.58.105.

Mail Servers

universityofoptions.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

universityofoptions.com shares at least some mail servers with other domains, for example epixelstudio.co.uk, recyclette.com, get-metis.com, rakon.com.tr and ericsimmerman.com.

These mail servers are often used with aspmx3.googlemail.com and aspmx2.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to: 2607:f8b0:4004:c19::1b and 142.250.31.27.

alt1.aspmx.l.google.com points to: 2607:f8b0:4023:2801::1a and 192.178.128.26.

alt2.aspmx.l.google.com points to: 2607:f8b0:4023:3003::1a and 172.253.145.26.

alt3.aspmx.l.google.com points to: 2a00:1450:4009:c0f::1b and 192.178.223.27.

alt4.aspmx.l.google.com points to: 2a00:1450:400c:c00::1b and 173.194.76.27.