holiday-lectures.org - robtex.com

holiday-lectures.org

DNSSEC⚠️ Not signed
A2606:4700::6812:ca3🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6812:da3🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.12.163Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.13.163Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkarina.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3ab2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A2803:f800:50::6ca2:c0b2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkarina.ns.cloudflare.com
A2a06:98c1:50::ac40:20b2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkarina.ns.cloudflare.com
A108.162.192.178🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A172.64.32.178🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
A173.245.58.178🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkarina.ns.cloudflare.com
NStoby.ns.cloudflare.com
A2606:4700:58::adf5:3bef🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtoby.ns.cloudflare.com
A2803:f800:50::6ca2:c1ef🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtoby.ns.cloudflare.com
A2a06:98c1:50::ac40:21ef🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtoby.ns.cloudflare.com
A108.162.193.239🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtoby.ns.cloudflare.com
A172.64.33.239🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtoby.ns.cloudflare.com
A173.245.59.239🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtoby.ns.cloudflare.com
TXTv=spf1 -all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.18.12.163, 104.18.13.163
IPv6 hints2606:4700::6812:ca3, 2606:4700::6812:da3
SOAkarina.ns.cloudflare.comdns@cloudflare.com serial=2400430962

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1778562218

Same first word

holiday-lectures.org

DNS History

17 records (6 active, 11 former)

20162017201820192020202120222023202420252026NSkarina.ns.cloudflare.comtoby.ns.cloudflare.coma.ns.zerigo.netb.ns.zerigo.netc.ns.zerigo.nethqiblox2.hhmi.orgns1.p29.dynect.netns2.p29.dynect.netns3.p29.dynect.netns4.p29.dynect.netsprucegoose.hhmi.orgsprucegoose2.hhmi.orgA104.18.12.163104.18.13.1632606:4700::6812:ca32606:4700::6812:da3206.241.0.150
○NSa.ns.zerigo.net2015-06-27 → 2016-01-22 · 4 obs
● 2015-06-27 05:40:58
● 2016-01-22 20:46:34
○ 2016-04-06 07:16:38
○ 2026-05-12 05:21:00
○NSb.ns.zerigo.net2015-06-27 → 2016-01-22 · 4 obs
● 2015-06-27 05:40:58
● 2016-01-22 20:46:34
○ 2016-04-06 07:16:38
○ 2026-05-12 05:21:00
○NSc.ns.zerigo.net2015-06-27 → 2016-01-22 · 4 obs
● 2015-06-27 05:40:58
● 2016-01-22 20:46:34
○ 2016-04-06 07:16:38
○ 2026-05-12 05:21:00
○NShqiblox2.hhmi.org2016-09-25 → 2016-09-25 · 4 obs
○ 2016-04-06 07:16:38
● 2016-09-25 20:27:02
○ 2017-05-18 10:55:04
○ 2026-05-12 05:21:00
●NSkarina.ns.cloudflare.com2026-04-28 → 2026-05-12 · 3 obs
○ 2017-05-18 10:55:04
● 2026-04-28 08:43:40
● 2026-05-12 05:21:00
○NSns1.p29.dynect.net2016-04-06 → 2017-05-18 · 5 obs
○ 2016-01-22 20:46:34
● 2016-04-06 07:16:38
● 2017-05-18 10:55:04
○ 2026-04-28 08:43:40
○ 2026-05-12 05:21:00
○NSns2.p29.dynect.net2016-04-06 → 2017-05-18 · 5 obs
○ 2016-01-22 20:46:34
● 2016-04-06 07:16:38
● 2017-05-18 10:55:04
○ 2026-04-28 08:43:40
○ 2026-05-12 05:21:00
○NSns3.p29.dynect.net2016-04-06 → 2017-05-18 · 5 obs
○ 2016-01-22 20:46:34
● 2016-04-06 07:16:38
● 2017-05-18 10:55:04
○ 2026-04-28 08:43:40
○ 2026-05-12 05:21:00
○NSns4.p29.dynect.net2016-04-06 → 2017-05-18 · 5 obs
○ 2016-01-22 20:46:34
● 2016-04-06 07:16:38
● 2017-05-18 10:55:04
○ 2026-04-28 08:43:40
○ 2026-05-12 05:21:00
○NSsprucegoose.hhmi.org2015-06-27 → 2016-09-25 · 4 obs
● 2015-06-27 05:40:58
● 2016-09-25 20:27:02
○ 2017-05-18 10:55:04
○ 2026-05-12 05:21:00
○NSsprucegoose2.hhmi.org2017-05-18 → 2017-05-18 · 4 obs
○ 2016-09-25 20:27:02
● 2017-05-18 10:55:04
○ 2026-04-28 08:43:40
○ 2026-05-12 05:21:00
●NStoby.ns.cloudflare.com2026-04-28 → 2026-05-12 · 3 obs
○ 2017-05-18 10:55:04
● 2026-04-28 08:43:40
● 2026-05-12 05:21:00
●A104.18.12.1632026-04-28 → 2026-05-12 · 3 obs
○ 2017-05-18 10:55:04
● 2026-04-28 08:43:40
● 2026-05-12 05:21:00
●A104.18.13.1632026-04-28 → 2026-05-12 · 3 obs
○ 2017-05-18 10:55:04
● 2026-04-28 08:43:40
● 2026-05-12 05:21:00
○A206.241.0.1502015-06-27 → 2017-05-18 · 4 obs
● 2015-06-27 05:40:58
● 2017-05-18 10:55:04
○ 2026-04-28 08:43:40
○ 2026-05-12 05:21:00
●A2606:4700::6812:ca32026-04-28 → 2026-05-12 · 3 obs
○ 2017-05-18 10:55:04
● 2026-04-28 08:43:40
● 2026-05-12 05:21:00
●A2606:4700::6812:da32026-04-28 → 2026-05-12 · 3 obs
○ 2017-05-18 10:55:04
● 2026-04-28 08:43:40
● 2026-05-12 05:21:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
holiday-lectures.orgkarina.ns.cloudflare.com, toby.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.239

NS records: karina.ns.cloudflare.com, toby.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for holiday-lectures.org (unsigned zone)

⏱️ Timing

Total: 471ms | Queries: -

📄 Records

TypeCountSample Data
A2104.18.12.163, 104.18.13.163
AAAA22606:4700::6812:da3, 2606:4700::6812:ca3
NS2karina.ns.cloudflare.com, toby.ns.cloudflare.com
TXT1v=spf1 -all
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1karina.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

holiday-lectures.org resolves to four IP numbers: 2606:4700::6812:ca3, 2606:4700::6812:da3, 104.18.12.163 and 104.18.13.163.

other host names for instance secure1.nextplanesolutions.com.cdn.cloudflare.net, rgbet.com, asmincoal.co.id, www.popai.pro.cdn.cloudflare.net and rownd.io share IP numbers with holiday-lectures.org.

Name Servers

holiday-lectures.org is delegated to two name servers: karina.ns.cloudflare.com and toby.ns.cloudflare.com.

holiday-lectures.org shares the same name server setup as other domains, for example tangledbankstudios.org, biology.org, holidaylectures.org, hhmi.com and janelia.net.

holiday-lectures.org at least partially shares name servers with other domains, for instance bdgetmoney.com, parxal.com, vodafoneteayuda.es, bosbtve.today and vulcanparkanimalcare.com.

These name servers are commonly used with ollie.ns.cloudflare.com, monika.ns.cloudflare.com and miles.ns.cloudflare.com.

Host names with six IP numbers:

karina.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab2, 2803:f800:50::6ca2:c0b2, 2a06:98c1:50::ac40:20b2, 108.162.192.178, 172.64.32.178 and 173.245.58.178; toby.ns.cloudflare.com points to: 2606:4700:58::adf5:3bef, 2803:f800:50::6ca2:c1ef, 2a06:98c1:50::ac40:21ef, 108.162.193.239, 172.64.33.239 and 173.245.59.239.