blok21.com - robtex.com

blok21.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:aed5🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:37fd🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.55.253Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.174.213🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSelma.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a9a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelma.ns.cloudflare.com
A2803:f800:50::6ca2:c09a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRelma.ns.cloudflare.com
A2a06:98c1:50::ac40:209a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRelma.ns.cloudflare.com
A108.162.192.154🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelma.ns.cloudflare.com
A172.64.32.154🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelma.ns.cloudflare.com
A173.245.58.154🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelma.ns.cloudflare.com
NSkonnor.ns.cloudflare.com
A2606:4700:58::a29f:2c6a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkonnor.ns.cloudflare.com
A2803:f800:50::6ca2:c36a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkonnor.ns.cloudflare.com
A2a06:98c1:50::ac40:236a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkonnor.ns.cloudflare.com
A108.162.195.106🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkonnor.ns.cloudflare.com
A162.159.44.106Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkonnor.ns.cloudflare.com
A172.64.35.106🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkonnor.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c03::1b🇺🇸 Google2607:f8b0::/32
PTRdy-in-f27.1e100.net
A142.251.2.27🇺🇸 Google142.251.2.0/24
PTRdl-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-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::1a🇧🇪 Google2a00:1450:400c::/48
PTRws-in-f26.1e100.net
PTRws-in-x1a.1e100.net
A173.194.76.26🇺🇸 Google173.194.76.0/24
PTRws-in-f26.1e100.net
TXTfacebook-domain-verification=po25b7cbw2cwfzqvsjhyplfm16eomx
TXTgoogle-site-verification=DEGtyhPuNEOU4TrThfkr3xfZ2FqRAQL9yUJaOsG8GMk
TXTgoogle-site-verification=kTMtBm2YvKmXylKLuPduHbvWhnyNCINkbMpxRN0tvsI
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.55.253, 172.67.174.213
IPv6 hints2606:4700:3031::ac43:aed5, 2606:4700:3037::6815:37fd
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=204, name=cloudflare-ech.com
SOAelma.ns.cloudflare.comdns@cloudflare.com serial=2400681588

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=1778664491

Same first word

blok21.com

Similar names

blok12.cz

DNS History

20 records (11 active, 9 former)

20162017201820192020202120222023202420252026NSelma.ns.cloudflare.comkonnor.ns.cloudflare.comns1.mypagelog.comns1bcp.name.comns2.mypagelog.comns2btz.name.comns3jkl.name.comns4ghm.name.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commail.blok21.comA104.21.55.253172.67.174.2132606:4700:3031::ac43:aed52606:4700:3037::6815:37fd78.47.55.4793.104.215.142
●NSelma.ns.cloudflare.com2026-04-10 → 2026-05-13 · 3 obs
○ 2017-06-17 21:38:12
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●NSkonnor.ns.cloudflare.com2026-04-10 → 2026-05-13 · 3 obs
○ 2017-06-17 21:38:12
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
○NSns1.mypagelog.com2015-11-07 → 2016-04-16 · 4 obs
● 2015-11-07 11:50:32
● 2016-04-16 00:55:38
○ 2016-12-04 05:32:48
○ 2026-05-13 09:47:24
○NSns1bcp.name.com2017-06-17 → 2017-06-17 · 4 obs
○ 2016-12-04 05:32:48
● 2017-06-17 21:38:12
○ 2026-04-10 11:46:24
○ 2026-05-13 09:47:24
○NSns2.mypagelog.com2015-11-07 → 2016-04-16 · 4 obs
● 2015-11-07 11:50:32
● 2016-04-16 00:55:38
○ 2016-12-04 05:32:48
○ 2026-05-13 09:47:24
○NSns2btz.name.com2017-06-17 → 2017-06-17 · 4 obs
○ 2016-12-04 05:32:48
● 2017-06-17 21:38:12
○ 2026-04-10 11:46:24
○ 2026-05-13 09:47:24
○NSns3jkl.name.com2017-06-17 → 2017-06-17 · 4 obs
○ 2016-12-04 05:32:48
● 2017-06-17 21:38:12
○ 2026-04-10 11:46:24
○ 2026-05-13 09:47:24
○NSns4ghm.name.com2017-06-17 → 2017-06-17 · 4 obs
○ 2016-12-04 05:32:48
● 2017-06-17 21:38:12
○ 2026-04-10 11:46:24
○ 2026-05-13 09:47:24
●MXalt1.aspmx.l.google.com2026-04-10 → 2026-05-13 · 3 obs
○ 2016-12-04 05:32:48
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●MXalt2.aspmx.l.google.com2026-04-10 → 2026-05-13 · 3 obs
○ 2016-12-04 05:32:48
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●MXalt3.aspmx.l.google.com2026-04-10 → 2026-05-13 · 3 obs
○ 2016-12-04 05:32:48
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●MXalt4.aspmx.l.google.com2026-04-10 → 2026-05-13 · 3 obs
○ 2016-12-04 05:32:48
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●MXaspmx.l.google.com2026-04-10 → 2026-05-13 · 3 obs
○ 2016-12-04 05:32:48
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
○MXmail.blok21.com2015-11-07 → 2016-04-16 · 4 obs
● 2015-11-07 11:50:32
● 2016-04-16 00:55:38
○ 2016-12-04 05:32:48
○ 2026-05-13 09:47:24
●A104.21.55.2532026-04-10 → 2026-05-13 · 3 obs
○ 2017-06-17 21:38:12
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●A172.67.174.2132026-04-10 → 2026-05-13 · 3 obs
○ 2017-06-17 21:38:12
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●A2606:4700:3031::ac43:aed52026-04-10 → 2026-05-13 · 3 obs
○ 2017-06-17 21:38:12
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
●A2606:4700:3037::6815:37fd2026-04-10 → 2026-05-13 · 3 obs
○ 2017-06-17 21:38:12
● 2026-04-10 11:46:24
● 2026-05-13 09:47:24
○A78.47.55.472017-06-17 → 2017-06-17 · 4 obs
○ 2016-12-04 05:32:48
● 2017-06-17 21:38:12
○ 2026-04-10 11:46:24
○ 2026-05-13 09:47:24
○A93.104.215.1422015-11-07 → 2016-04-16 · 4 obs
● 2015-11-07 11:50:32
● 2016-04-16 00:55:38
○ 2016-12-04 05:32:48
○ 2026-05-13 09:47:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
blok21.comelma.ns.cloudflare.com, konnor.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.106

NS records: elma.ns.cloudflare.com, konnor.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blok21.com (unsigned zone)

⏱️ Timing

Total: 411ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.174.213, 104.21.55.253
AAAA22606:4700:3031::ac43:aed5, 2606:4700:3037::6815:37fd
NS2elma.ns.cloudflare.com, konnor.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT3facebook-domain-verification=po25b7cbw2c, google-site-verification=DEGtyhPuNEOU4Tr...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1elma.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

blok21.com points to four IP numbers: 2606:4700:3031::ac43:aed5, 2606:4700:3037::6815:37fd, 104.21.55.253 and 172.67.174.213.

Other host names including lasmarionetasdeirene.com, www.kpopmap.com, painless1099.com, chaciba.com and vlogeasy.com share IP numbers with blok21.com.

Name Servers

blok21.com's delegation uses two name servers, elma.ns.cloudflare.com and konnor.ns.cloudflare.com.

blok21.com shares the same name server setup as other domains, for example iformat.pl, xifeqjdqjg.workers.dev, dxf.cz, 2kmtcentral.com and 2kmtc.com.

blok21.com at least partially shares name servers with other domains, including clevelandinsulation.com, rynda.io, gestioncentreformation.fr, solertiae.com and fundraisingsoft.com.

these name servers are commonly used together with leland.ns.cloudflare.com, isla.ns.cloudflare.com and christian.ns.cloudflare.com.

Host names with six IP numbers:

elma.ns.cloudflare.com points to: 2606:4700:50::adf5:3a9a, 2803:f800:50::6ca2:c09a, 2a06:98c1:50::ac40:209a, 108.162.192.154, 172.64.32.154 and 173.245.58.154.

konnor.ns.cloudflare.com points to: 2606:4700:58::a29f:2c6a, 2803:f800:50::6ca2:c36a, 2a06:98c1:50::ac40:236a, 108.162.195.106, 162.159.44.106 and 172.64.35.106.

Mail Servers

blok21.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.

The mail servers for blok21.com are shared with other domains, for instance homepage.pro, ns500768.ns500698.ns500698.ns500736.ns500736.ns500698.ns500708.ns500698.ns500686.ns500652.ns500652.ns500576.ns500619.ns500652.tracksymphony.com, ap.associates, ns500698.ns500758.ns500698.ns500758.ns500698.ns500698.ns500736.ns500736.ns500698.ns500708.ns500698.ns500708.ns500698.ns500619.ns500619.ns500619.trackreceptor.com and ns500693.ns500765.ns500699.ns500734.ns500693.ns500699.ns500728.ns500683.ns500588.ns500612.dtrkdll.com.

These mail servers are commonly used alongside aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4023:c03::1b and 142.251.2.27.

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.26.

alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.26.

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::1a and 173.194.76.26.