`21.7.ftth.classcom.pl`

DNSSEC	⚠️ Not signed
A	176.115.7.21^{🇵🇱 CLASSCOM-AS176.115.0.0/19 CLASSCOM}
		PTR	`21.7.ftth.classcom.pl`

`7.ftth.classcom.pl`

DNSSEC

⚠️ Not signed

Same first word

21.technology

21.capital

21.dk

21.email

21.ai

21.wf

21.sk

21.zone

21.immo

21.hk

21.cz

21.academy

21.style

21.school

21.(0x787878)

21.ink

21.pictures

21.show

21.nl

21.agency

21.co

21.biz

21.lv

21.uk

21.ru

21.co.za

21.co.tz

21.lc

21.finance

21.re

21.co.com

21.ax

21.nu

21.business

21.casino

21.red

21.pl

21.ee

21.com.vn

21.partners

21.to

21.cl

21.ie

21.photos

21.sb

21.cc

21.city

21.gs

21.fr

21.live

21.by

21.com.es

21.net.cn

21.eu

21.run

21.pw

21.se

21.org.cn

21.chat

21.net

21.game

21.la

21.ag

21.diamonds

21.cn

21.de

21.training

21.ca

21.org

21.com.tw

21.co.uk

21.vc

21.am

21.im

21.rs

21.amsterdam

21.com

21.bet

21.center

21.kz

21.fyi

21.cm

21.web.app

21.su

21.network

21.si

21.ph

21.is

21.be

21.com.ua

21.pe

21.edu.ar

21.gg

Similar names

12.hk

12.gs

12.amsterdam

12.fr

12.vc

12.am

12.agency

12.digital

12.ac.cn

12.com.vn

12.lt

12.si

12.cfd

12.tf

12.pw

12.be

12.fi

12.cc

12.is

12.chat

12.netlify.app

12.app

12.solutions

12.dyndns.tv

12.cm

12.pl

12.world

12.by

12.org.ua

12.works

12.cn

12.uz

12.com.pl

12.com

12.ca

12.hu

12.no

12.sh.cn

12.ru

12.limo

12.vg

12.io

12.biz

12.tr

12.to

12.pub

12.nl

12.net

12.la

12.at

12.gg

12.ws

12.s3.amazonaws.com

12.au

12.tel

12.club

12.ee

12.lv

12.cl

12.ph

12.rs

12.co.uk

12.de

12.co.kr

12.in-addr.arpa

12.ag

12.kz

12.ie

12.plus

12.com.ua

12.cz

12.eu

12.uk

12.sg

12.life

12.network

12.dk

12.com.cn

12.org.ru

12.cx

12.org

12.nu

12.gl

12.vip

12.net.cn

DNS History

1 record (1 active, 0 former)

●A176.115.7.212017-05-26 → 2026-05-11 · 2 obs

● 2017-05-26 15:55:18
● 2026-05-11 20:54:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
classcom.pl	dns.classcom.pl, dns2.classcom.pl	-

✅ Authoritative Response

Server:195.150.77.18

NS records: dns.classcom.pl, dns2.classcom.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classcom.pl (unsigned zone)

⏱️ Timing

Total: 242ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`176.115.7.21`

Analysis

IP Addresses

21.7.ftth.classcom.pl resolves to one IP number: 176.115.7.21.

21.7.ftth.classcom.pl - robtex.com