511study.com - robtex.com

511study.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:c273🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:2203🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.34.3Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.194.115🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScoleman.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c40🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
A2803:f800:50::6ca2:c340🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcoleman.ns.cloudflare.com
A2a06:98c1:50::ac40:2340🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcoleman.ns.cloudflare.com
A108.162.195.64🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
A162.159.44.64Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
A172.64.35.64🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoleman.ns.cloudflare.com
NSharmony.ns.cloudflare.com
A2606:4700:50::a29f:2692🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRharmony.ns.cloudflare.com
A2803:f800:50::6ca2:c292🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRharmony.ns.cloudflare.com
A2a06:98c1:50::ac40:2292🇺🇸 Cloudflare2a06:98c1:50::/45
PTRharmony.ns.cloudflare.com
A108.162.194.146🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRharmony.ns.cloudflare.com
A162.159.38.146Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRharmony.ns.cloudflare.com
A172.64.34.146🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRharmony.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.34.3, 172.67.194.115
IPv6 hints2606:4700:3032::ac43:c273, 2606:4700:3037::6815:2203
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=11, name=cloudflare-ech.com
SOAcoleman.ns.cloudflare.comdns@cloudflare.com serial=2401540188

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=1778590481

Same first word

511study.com

DNS History

11 records (6 active, 5 former)

20162017201820192020202120222023202420252026NScoleman.ns.cloudflare.comharmony.ns.cloudflare.comjuming.dnsdun.comjuming.dnsdun.netns11.bigwww.comA104.21.34.3172.67.194.1152606:4700:3032::ac43:c2732606:4700:3037::6815:2203116.255.219.34172.246.83.116
●NScoleman.ns.cloudflare.com2026-02-15 → 2026-05-12 · 3 obs
○ 2017-04-19 09:05:14
● 2026-02-15 08:37:08
● 2026-05-12 13:24:06
●NSharmony.ns.cloudflare.com2026-02-15 → 2026-05-12 · 3 obs
○ 2017-04-19 09:05:14
● 2026-02-15 08:37:08
● 2026-05-12 13:24:06
○NSjuming.dnsdun.com2016-09-10 → 2017-04-19 · 5 obs
○ 2015-12-30 15:38:56
● 2016-09-10 20:39:38
● 2017-04-19 09:05:14
○ 2026-02-15 08:37:08
○ 2026-05-12 13:24:06
○NSjuming.dnsdun.net2016-09-10 → 2017-04-19 · 5 obs
○ 2015-12-30 15:38:56
● 2016-09-10 20:39:38
● 2017-04-19 09:05:14
○ 2026-02-15 08:37:08
○ 2026-05-12 13:24:06
○NSns11.bigwww.com2015-08-18 → 2015-08-18 · 3 obs
● 2015-08-18 04:08:50
○ 2015-12-30 15:38:56
○ 2026-05-12 13:24:06
●A104.21.34.32026-02-15 → 2026-05-12 · 3 obs
○ 2017-04-19 09:05:14
● 2026-02-15 08:37:08
● 2026-05-12 13:24:06
○A116.255.219.342015-08-18 → 2015-08-18 · 3 obs
● 2015-08-18 04:08:50
○ 2015-12-30 15:38:56
○ 2026-05-12 13:24:06
○A172.246.83.1162016-09-10 → 2017-04-19 · 5 obs
○ 2015-12-30 15:38:56
● 2016-09-10 20:39:38
● 2017-04-19 09:05:14
○ 2026-02-15 08:37:08
○ 2026-05-12 13:24:06
●A172.67.194.1152026-02-15 → 2026-05-12 · 3 obs
○ 2017-04-19 09:05:14
● 2026-02-15 08:37:08
● 2026-05-12 13:24:06
●A2606:4700:3032::ac43:c2732026-02-15 → 2026-05-12 · 3 obs
○ 2017-04-19 09:05:14
● 2026-02-15 08:37:08
● 2026-05-12 13:24:06
●A2606:4700:3037::6815:22032026-02-15 → 2026-05-12 · 3 obs
○ 2017-04-19 09:05:14
● 2026-02-15 08:37:08
● 2026-05-12 13:24:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
511study.comharmony.ns.cloudflare.com, coleman.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.64

NS records: harmony.ns.cloudflare.com, coleman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 511study.com (unsigned zone)

⏱️ Timing

Total: 348ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.194.115, 104.21.34.3
AAAA22606:4700:3037::6815:2203, 2606:4700:3032::ac43:c273
NS2coleman.ns.cloudflare.com, harmony.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1coleman.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

511study.com points to four IP numbers: 2606:4700:3032::ac43:c273, 2606:4700:3037::6815:2203, 104.21.34.3 and 172.67.194.115.

Other host names, for instance www.kuagoshop.com, t.dm, (0x706f726e)4.info, konzum.co.ba and adesign.is share IP numbers with 511study.com.

Name Servers

Delegation for 511study.com rests with two name servers, coleman.ns.cloudflare.com and harmony.ns.cloudflare.com.

511study.com shares the same name server setup as other domains, including cxtfaaa.com, bigbox100.com, gyszszm.com, alexcite.com and 156wenxue.com.

511study.com at least partially shares name servers with other domains, for instance tvrath.com, ehsanimran.com, cretecarbooking.com, caaresys.com and dlarjn.com.

These name servers are often used together with terin.ns.cloudflare.com, buck.ns.cloudflare.com, vick.ns.cloudflare.com, fish.ns.cloudflare.com and alberto.ns.cloudflare.com.

Host names with six IP numbers: coleman.ns.cloudflare.com points to: 2606:4700:58::a29f:2c40, 2803:f800:50::6ca2:c340, 2a06:98c1:50::ac40:2340, 108.162.195.64, 162.159.44.64 and 172.64.35.64. harmony.ns.cloudflare.com points to: 2606:4700:50::a29f:2692, 2803:f800:50::6ca2:c292, 2a06:98c1:50::ac40:2292, 108.162.194.146, 162.159.38.146 and 172.64.34.146.