pbs-study.com - robtex.com

pbs-study.com

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:d962🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:5dfd🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.93.253Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.217.98🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSchance.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c21🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchance.ns.cloudflare.com
A2803:f800:50::6ca2:c321🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRchance.ns.cloudflare.com
A2a06:98c1:50::ac40:2321🇺🇸 Cloudflare2a06:98c1:50::/45
PTRchance.ns.cloudflare.com
A108.162.195.33🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchance.ns.cloudflare.com
A162.159.44.33Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchance.ns.cloudflare.com
A172.64.35.33🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchance.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
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.93.253, 172.67.217.98
IPv62606:4700:3035::ac43:d962, 2606:4700:3037::6815:5dfd
SOAchance.ns.cloudflare.comdns@cloudflare.com serial=2394122498

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=1771291435

Same first word

pbs-study.com

Similar names

study-spb.ru

DNS History

9 records (6 active, 3 former)

201820192020202120222023202420252026NSchance.ns.cloudflare.comdana.ns.cloudflare.comns1.platformalp.runs2.platformalp.ruA104.21.93.253172.67.217.982606:4700:3035::ac43:d9622606:4700:3037::6815:5dfd95.213.255.23
●NSchance.ns.cloudflare.com2026-03-01 → 2026-03-01 · 3 obs
○ 2017-08-09 21:53:04
● 2026-03-01 05:47:40
● 2026-03-01 11:03:02
●NSdana.ns.cloudflare.com2026-03-01 → 2026-03-01 · 3 obs
○ 2017-08-09 21:53:04
● 2026-03-01 05:47:40
● 2026-03-01 11:03:02
○NSns1.platformalp.ru2017-08-09 → 2017-08-09 · 3 obs
● 2017-08-09 21:53:04
○ 2026-03-01 05:47:40
○ 2026-03-01 11:03:02
○NSns2.platformalp.ru2017-08-09 → 2017-08-09 · 3 obs
● 2017-08-09 21:53:04
○ 2026-03-01 05:47:40
○ 2026-03-01 11:03:02
●A104.21.93.2532026-03-01 → 2026-03-01 · 3 obs
○ 2017-08-09 21:53:04
● 2026-03-01 05:47:40
● 2026-03-01 11:03:02
●A172.67.217.982026-03-01 → 2026-03-01 · 3 obs
○ 2017-08-09 21:53:04
● 2026-03-01 05:47:40
● 2026-03-01 11:03:02
●A2606:4700:3035::ac43:d9622026-03-01 → 2026-03-01 · 3 obs
○ 2017-08-09 21:53:04
● 2026-03-01 05:47:40
● 2026-03-01 11:03:02
●A2606:4700:3037::6815:5dfd2026-03-01 → 2026-03-01 · 3 obs
○ 2017-08-09 21:53:04
● 2026-03-01 05:47:40
● 2026-03-01 11:03:02
○A95.213.255.232017-08-09 → 2017-08-09 · 3 obs
● 2017-08-09 21:53:04
○ 2026-03-01 05:47:40
○ 2026-03-01 11:03:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
pbs-study.comdana.ns.cloudflare.com, chance.ns.cloudflare.com12 records

✅ Authoritative Response

Server: 108.162.192.105

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pbs-study.com (unsigned zone)

⏱️ Timing

Total: 174ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.93.253, 172.67.217.98
AAAA22606:4700:3037::6815:5dfd, 2606:4700:3035::ac43:d962
NS2chance.ns.cloudflare.com, dana.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1chance.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

pbs-study.com points to four IP numbers: 2606:4700:3035::ac43:d962, 2606:4700:3037::6815:5dfd, 104.21.93.253 and 172.67.217.98.

Other host names, for instance vermop.com.cn, zaphot.net, makeconnections.ca, powerprotv.com and ginikoturkish.com share IP numbers with pbs-study.com.

Name Servers

Delegation for pbs-study.com rests with two name servers, chance.ns.cloudflare.com and dana.ns.cloudflare.com.

pbs-study.com shares the same name server setup as other domains, including m5ms.net, mnogo-idei.com, mob-corp.com, m(0x356578)press.com and radiorivne.com.ua.

pbs-study.com at least partially shares name servers with other domains, for instance efitecsa.com, betterdeal.ie, ieaac.cn, pg8055.com and game24hr.com.

these name servers are commonly used with dave.ns.cloudflare.com, mary.ns.cloudflare.com and anahi.ns.cloudflare.com.

Host names with six IP numbers: chance.ns.cloudflare.com points to: 2606:4700:58::a29f:2c21, 2803:f800:50::6ca2:c321, 2a06:98c1:50::ac40:2321, 108.162.195.33, 162.159.44.33 and 172.64.35.33. 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.