521mc.com - robtex.com

521mc.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:a83c🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:1a3c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.26.60Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.168.60🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSnia.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3ad2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
A2803:f800:50::6ca2:c0d2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnia.ns.cloudflare.com
A2a06:98c1:50::ac40:20d2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnia.ns.cloudflare.com
A108.162.192.210🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
A172.64.32.210🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
A173.245.58.210🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnia.ns.cloudflare.com
NSviddy.ns.cloudflare.com
A2606:4700:58::a29f:2c63🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRviddy.ns.cloudflare.com
A2803:f800:50::6ca2:c363🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRviddy.ns.cloudflare.com
A2a06:98c1:50::ac40:2363🇺🇸 Cloudflare2a06:98c1:50::/45
PTRviddy.ns.cloudflare.com
A108.162.195.99🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRviddy.ns.cloudflare.com
A162.159.44.99Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRviddy.ns.cloudflare.com
A172.64.35.99🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRviddy.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.26.60, 172.67.168.60
IPv62606:4700:3033::ac43:a83c, 2606:4700:3034::6815:1a3c
SOAnia.ns.cloudflare.comdns@cloudflare.com serial=2399087840

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=1774420272

Same first word

521mc.com

Similar names

mc521.cn
mc251.com
mc521.com
mc125.com
mc521.net

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSnia.ns.cloudflare.comviddy.ns.cloudflare.comns15.xincache.comns16.xincache.comns1650.ztomy.comns2650.ztomy.comMXmail.skrimple.comA104.21.26.60172.67.168.602606:4700:3033::ac43:a83c2606:4700:3034::6815:1a3c204.11.56.5069.46.84.52PTRns1650.ztomy.com
●NSnia.ns.cloudflare.com2026-02-17 → 2026-03-25 · 3 obs
○ 2017-02-14 14:25:48
● 2026-02-17 18:17:26
● 2026-03-25 06:33:30
○NSns15.xincache.com2015-08-16 → 2015-12-07 · 4 obs
● 2015-08-16 09:22:58
● 2015-12-07 09:45:16
○ 2016-06-27 09:12:46
○ 2026-03-25 06:33:30
○NSns16.xincache.com2015-08-16 → 2015-12-07 · 4 obs
● 2015-08-16 09:22:58
● 2015-12-07 09:45:16
○ 2016-06-27 09:12:46
○ 2026-03-25 06:33:30
○NSns1650.ztomy.com2016-06-27 → 2017-02-14 · 5 obs
○ 2015-12-07 09:45:16
● 2016-06-27 09:12:46
● 2017-02-14 14:25:48
○ 2026-02-17 18:17:26
○ 2026-03-25 06:33:30
○NSns2650.ztomy.com2016-06-27 → 2017-02-14 · 5 obs
○ 2015-12-07 09:45:16
● 2016-06-27 09:12:46
● 2017-02-14 14:25:48
○ 2026-02-17 18:17:26
○ 2026-03-25 06:33:30
●NSviddy.ns.cloudflare.com2026-02-17 → 2026-03-25 · 3 obs
○ 2017-02-14 14:25:48
● 2026-02-17 18:17:26
● 2026-03-25 06:33:30
○MXmail.skrimple.com2016-03-10 → 2016-03-10 · 3 obs
● 2016-03-10 22:35:10
○ 2016-06-27 09:12:46
○ 2026-03-25 06:33:30
●A104.21.26.602026-02-17 → 2026-03-25 · 3 obs
○ 2017-02-14 14:25:48
● 2026-02-17 18:17:26
● 2026-03-25 06:33:30
●A172.67.168.602026-02-17 → 2026-03-25 · 3 obs
○ 2017-02-14 14:25:48
● 2026-02-17 18:17:26
● 2026-03-25 06:33:30
○A204.11.56.502016-06-27 → 2017-02-14 · 5 obs
○ 2016-03-10 22:35:10
● 2016-06-27 09:12:46
● 2017-02-14 14:25:48
○ 2026-02-17 18:17:26
○ 2026-03-25 06:33:30
●A2606:4700:3033::ac43:a83c2026-02-17 → 2026-03-25 · 3 obs
○ 2017-02-14 14:25:48
● 2026-02-17 18:17:26
● 2026-03-25 06:33:30
●A2606:4700:3034::6815:1a3c2026-02-17 → 2026-03-25 · 3 obs
○ 2017-02-14 14:25:48
● 2026-02-17 18:17:26
● 2026-03-25 06:33:30
○A69.46.84.522016-03-10 → 2016-03-10 · 3 obs
● 2016-03-10 22:35:10
○ 2016-06-27 09:12:46
○ 2026-03-25 06:33:30
○PTRns1650.ztomy.com2017-02-14 → 2017-02-14 · 3 obs
● 2017-02-14 14:25:48
○ 2026-02-17 18:17:26
○ 2026-03-25 06:33:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comg.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net...-
521mc.comnia.ns.cloudflare.com, viddy.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.210

NS records: nia.ns.cloudflare.com, viddy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 521mc.com (unsigned zone)

⏱️ Timing

Total: 168ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.168.60, 104.21.26.60
AAAA22606:4700:3034::6815:1a3c, 2606:4700:3033::ac43:a83c
NS2nia.ns.cloudflare.com, viddy.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1nia.ns.cloudflare.com dns.cloudflare.com

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

521mc.com points to four IP numbers: 2606:4700:3033::ac43:a83c, 2606:4700:3034::6815:1a3c, 104.21.26.60 and 172.67.168.60.

Other host names, for instance benteng777.cloudcommunity.org, cheapsmmmarket.com, delhicitybus.in, adulties.top and episimo.gr share IP numbers with 521mc.com.

Name Servers

521mc.com's delegation is to two name servers nia.ns.cloudflare.com and viddy.ns.cloudflare.com.

521mc.com shares the same name server configuration as other domains, such as tengjunshell99.com, mkmaracle.com, tjdfwy.com, igg6.com and czhr17.com.

521mc.com at least partially shares its name servers with other domains, for instance bolivoca.site, midwestrubber.com, microflag.com, realpresa.com and eas-intranet.com.

these name servers are commonly used together with jule.ns.cloudflare.com, desi.ns.cloudflare.com, theo.ns.cloudflare.com and ivan.ns.cloudflare.com.

Host names with six IP numbers:

nia.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad2, 2803:f800:50::6ca2:c0d2, 2a06:98c1:50::ac40:20d2, 108.162.192.210, 172.64.32.210 and 173.245.58.210.

viddy.ns.cloudflare.com points to: 2606:4700:58::a29f:2c63, 2803:f800:50::6ca2:c363, 2a06:98c1:50::ac40:2363, 108.162.195.99, 162.159.44.99 and 172.64.35.99.