51isoft.com - robtex.com

51isoft.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:55d🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:8540🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.5.93Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.133.64🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbob.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b68🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A2803:f800:50::6ca2:c168🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbob.ns.cloudflare.com
A2a06:98c1:50::ac40:2168🇺🇸 Cloudflare2a06:98c1:50::/45
PTRbob.ns.cloudflare.com
A108.162.193.104🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A172.64.33.104🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A173.245.59.104🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
NSiris.ns.cloudflare.com
A2606:4700:50::adf5:3a76🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRiris.ns.cloudflare.com
A2803:f800:50::6ca2:c076🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRiris.ns.cloudflare.com
A2a06:98c1:50::ac40:2076🇺🇸 Cloudflare2a06:98c1:50::/45
PTRiris.ns.cloudflare.com
A108.162.192.118🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRiris.ns.cloudflare.com
A172.64.32.118🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRiris.ns.cloudflare.com
A173.245.58.118🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRiris.ns.cloudflare.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c08::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbi-in-f26.1e100.net
A142.251.167.27🇺🇸 Google142.251.167.0/24
PTRww-in-f27.1e100.net
MXalt1.aspmx.l.google.com(20)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(20)
A2607:f8b0:4023:1015::1b🇺🇸 Google2607:f8b0::/32
PTRyudfwta-in-f27.1e100.net
A172.253.135.27🇺🇸 Google172.253.135.0/24
PTRyudfwta-in-f27.1e100.net
MXaspmx2.googlemail.com(30)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXaspmx3.googlemail.com(30)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXaspmx4.googlemail.com(30)
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXaspmx5.googlemail.com(30)
A2607:f8b0:4003:c4a::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulth-in-f27.1e100.net
A142.251.96.27🇺🇸 Google142.250.0.0/15
PTRyutulth-in-f27.1e100.net
TXTv=spf1 include:aspmx.googlemail.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.5.93, 172.67.133.64
IPv6 hints2606:4700:3031::6815:55d, 2606:4700:3033::ac43:8540
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=67, name=cloudflare-ech.com
SOAbob.ns.cloudflare.comdns@cloudflare.com serial=2401198990

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=1778185736

Same first word

51isoft.com

DNS History

17 records (13 active, 4 former)

20162017201820192020202120222023202420252026NSbob.ns.cloudflare.comiris.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA104.21.5.93172.67.133.642606:4700:3031::6815:55d2606:4700:3033::ac43:8540104.28.10.84104.28.11.842400:cb00:2048:1::681c:a542400:cb00:2048:1::681c:b54
●NSbob.ns.cloudflare.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●NSiris.ns.cloudflare.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●MXalt1.aspmx.l.google.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●MXalt2.aspmx.l.google.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●MXaspmx.l.google.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●MXaspmx2.googlemail.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●MXaspmx3.googlemail.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●MXaspmx4.googlemail.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●MXaspmx5.googlemail.com2015-08-05 → 2026-05-07 · 2 obs
● 2015-08-05 18:07:38
● 2026-05-07 20:48:48
●A104.21.5.932026-02-26 → 2026-05-07 · 3 obs
○ 2017-04-02 12:01:02
● 2026-02-26 18:35:18
● 2026-05-07 20:48:48
○A104.28.10.842015-08-05 → 2017-04-02 · 4 obs
● 2015-08-05 18:07:38
● 2017-04-02 12:01:02
○ 2026-02-26 18:35:18
○ 2026-05-07 20:48:48
○A104.28.11.842015-08-05 → 2017-04-02 · 4 obs
● 2015-08-05 18:07:38
● 2017-04-02 12:01:02
○ 2026-02-26 18:35:18
○ 2026-05-07 20:48:48
●A172.67.133.642026-02-26 → 2026-05-07 · 3 obs
○ 2017-04-02 12:01:02
● 2026-02-26 18:35:18
● 2026-05-07 20:48:48
○A2400:cb00:2048:1::681c:a542017-04-02 → 2017-04-02 · 4 obs
○ 2015-08-05 18:07:38
● 2017-04-02 12:01:02
○ 2026-02-26 18:35:18
○ 2026-05-07 20:48:48
○A2400:cb00:2048:1::681c:b542017-04-02 → 2017-04-02 · 4 obs
○ 2015-08-05 18:07:38
● 2017-04-02 12:01:02
○ 2026-02-26 18:35:18
○ 2026-05-07 20:48:48
●A2606:4700:3031::6815:55d2026-02-26 → 2026-05-07 · 3 obs
○ 2017-04-02 12:01:02
● 2026-02-26 18:35:18
● 2026-05-07 20:48:48
●A2606:4700:3033::ac43:85402026-02-26 → 2026-05-07 · 3 obs
○ 2017-04-02 12:01:02
● 2026-02-26 18:35:18
● 2026-05-07 20:48:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
51isoft.combob.ns.cloudflare.com, iris.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.104

NS records: bob.ns.cloudflare.com, iris.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51isoft.com (unsigned zone)

⏱️ Timing

Total: 237ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.133.64, 104.21.5.93
AAAA22606:4700:3033::ac43:8540, 2606:4700:3031::6815:55d
NS2bob.ns.cloudflare.com, iris.ns.cloudflare.com
MX7aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...
TXT1v=spf1 include:aspmx.googlemail.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1bob.ns.cloudflare.com dns.cloudflare.com

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

51isoft.com points to four IP numbers: 2606:4700:3031::6815:55d, 2606:4700:3033::ac43:8540, 104.21.5.93 and 172.67.133.64.

Other host names, for instance connect.yamibo.top, www.litespeedcachecdn.com, apply-influ.com, rencontre-ephemere.com and bodyservice.com.au share IP numbers with 51isoft.com.

Name Servers

Delegation for 51isoft.com rests with two name servers, bob.ns.cloudflare.com and iris.ns.cloudflare.com.

51isoft.com shares the same name server setup as other domains, including vaginacontest.com, droseortho.com, sumonix.com, guerman.com and richmond-dentistry.com.

51isoft.com at least partially shares name servers with other domains, for instance georgehampe.com, tomorrows.codes, babeswithglasses.com, southernmonument.ca and brizawen.com.

Host names with six IP numbers: bob.ns.cloudflare.com points to: 2606:4700:58::adf5:3b68, 2803:f800:50::6ca2:c168, 2a06:98c1:50::ac40:2168, 108.162.193.104, 172.64.33.104 and 173.245.59.104. iris.ns.cloudflare.com points to: 2606:4700:50::adf5:3a76, 2803:f800:50::6ca2:c076, 2a06:98c1:50::ac40:2076, 108.162.192.118, 172.64.32.118 and 173.245.58.118.

Mail Servers

51isoft.com is handled by seven mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com, aspmx5.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

51isoft.com shares mail servers with other domains at least in part, for instance ns500742.ns500671.ns500671.ns500731.ns500731.ns500705.ns500705.ns500688.ns500688.ns500705.ns500678.ns500671.lusty(0x736c7574)z.com, louismetric.com, domesticviolenceexpert.net, waterhome.es and ns500731.ns500731.ns500671.ns500754.ns500688.ns500671.ns500705.ns500671.ns500671.ns500671.ns500649.ns500666.ns500291.ns500131.lustychickser.com.

these mail servers are often used with alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

Host names with two IP numbers

aspmx2.googlemail.com points to 2800:3f0:4003:c0f::1b and 108.177.123.27

aspmx3.googlemail.com points to 2a00:1450:400b:c02::1a and 172.253.116.27

aspmx4.googlemail.com points to 2a00:1450:4009:c0f::1a and 192.178.223.26

aspmx5.googlemail.com points to 2607:f8b0:4003:c4a::1b and 142.251.96.27

aspmx.l.google.com points to 2607:f8b0:4004:c08::1a and 142.251.167.27

alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1b and 108.177.123.27

alt2.aspmx.l.google.com points to 2607:f8b0:4023:1015::1b and 172.253.135.27

Host names that point to 2800:3f0:4003:c0f::1b: aspmx2.googlemail.com, alt1.aspmx.l.google.com

Host names that point to 108.177.123.27: aspmx2.googlemail.com, alt1.aspmx.l.google.com