simpleclean.app - robtex.com

simpleclean.app

DNSSEC⚠️ Not signed
A152.89.79.36🇺🇸 KRYSTAL152.89.76.0/22
PTRdora-nyc1.krystalhosting.com
NSns1.krystal.uk ⭐ ⚠️ Not in parent delegation
A77.72.0.11🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd
PTRns1.krystal.uk
NSns1.krystal.co.uk ⚠️ Not in zone NS records
A77.72.0.11🇬🇧 KRYSTAL77.72.0.0/21 Krystal Hosting Ltd
PTRns1.krystal.uk
NSns2.krystal.co.uk ⚠️ Not in zone NS records
A139.162.230.184🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies
PTRns2.krystal.uk
NSns2.krystal.uk ⚠️ Not in parent delegation
A139.162.230.184🇬🇧 AKAMAI-LINODE-AP139.162.224.0/19 Akamai Technologies
PTRns2.krystal.uk
MXmx1.krystalhosting.com
A185.53.56.44🇬🇧 KRYSTAL185.53.56.0/22
PTRmx1.strikemail.co.uk
A185.53.56.46🇬🇧 KRYSTAL185.53.56.0/22
PTRmx1.strikemail.co.uk
MXmx2.krystalhosting.com(20)
A185.53.56.45🇬🇧 KRYSTAL185.53.56.0/22
PTRmx2.strikemail.co.uk
A185.53.56.47🇬🇧 KRYSTAL185.53.56.0/22
PTRmx2.strikemail.co.uk
TXTpinterest-site-verification=29076787e4d92f710501f4d118c10046
TXTgoogle-site-verification=ctLK(0x463470)1EFOroax5Lf0GMeWTaQvrgF2qaZ-Iff1wwl8
TXTv=spf1 +a +mx +ip4:152.89.79.36 include:relay.k.io ~all
SOAns1.krystal.ukadmin@k-validator-merlin.krystal.uk 2026-05-24 #1

app

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427
🔒 HSTS Preload (+subdomains)

Same first word

Similar names

DNS History

7 records (7 active, 0 former)

NSns1.krystal.co.ukns1.krystal.ukns2.krystal.co.ukns2.krystal.ukMXmx1.krystalhosting.commx2.krystalhosting.comA152.89.79.36
NSns1.krystal.co.uk2026-06-13 → 2026-07-15 · 2 obs
● 2026-06-13 11:12:30
● 2026-07-15 20:19:20
NSns1.krystal.uk2026-06-13 → 2026-07-15 · 2 obs
● 2026-06-13 11:12:30
● 2026-07-15 20:19:20
NSns2.krystal.co.uk2026-06-13 → 2026-07-15 · 2 obs
● 2026-06-13 11:12:30
● 2026-07-15 20:19:20
NSns2.krystal.uk2026-06-13 → 2026-07-15 · 2 obs
● 2026-06-13 11:12:30
● 2026-07-15 20:19:20
MXmx1.krystalhosting.com2026-06-13 → 2026-07-15 · 2 obs
● 2026-06-13 11:12:30
● 2026-07-15 20:19:20
MXmx2.krystalhosting.com2026-06-13 → 2026-07-15 · 2 obs
● 2026-06-13 11:12:30
● 2026-07-15 20:19:20
A152.89.79.362026-06-13 → 2026-07-15 · 2 obs
● 2026-06-13 11:12:30
● 2026-07-15 20:19:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
appns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
simpleclean.appns2.krystal.co.uk, ns1.krystal.co.uk-

✅ Authoritative Response

Server:139.162.230.184

NS records: ns2.krystal.co.uk, ns1.krystal.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simpleclean.app (unsigned zone)

⏱️ Timing

Total: 1572ms | Queries: -

📄 Records

TypeCountSample Data
A1152.89.79.36
NS2ns1.krystal.uk, ns2.krystal.uk
MX2mx1.krystalhosting.com (pri: 10), mx2.krystalhosting.com (pri: 20)
TXT3pinterest-site-verification=29076787e4d9, v=spf1 +a +mx +ip4:152.89.79.36 include:...
SOA1ns1.krystal.uk admin.k-validator-merlin.

Analysis

IP Addresses

simpleclean.app has exactly one IP address — 152.89.79.36.

tinifiber.com, digabusiness.com, givm.com plus two other host names have IP numbers in common with simpleclean.app.

Name Servers

Four name servers handle the delegation for simpleclean.app: ns1.krystal.uk, ns2.krystal.uk, ns1.krystal.co.uk and ns2.krystal.co.uk.

simpleclean.app partially shares its NS delegation with several other domains, including yoruk.co.uk, supermarkets.co.uk, naridana.com and two others.

In DNS configurations, these name servers often share authority with ns1.cloudhosting.uk, ns2.cloudhosting.uk, ns1.krystal.io and 5 other name servers.

Host names ns1.krystal.uk, ns2.krystal.uk, ns1.krystal.co.uk and ns2.krystal.co.uk each have one IP address. Notably, ns1.krystal.uk and ns1.krystal.co.uk resolve to the same address 77.72.0.11, and ns2.krystal.uk and ns2.krystal.co.uk resolve to the same address 139.162.230.184.

Both ns1.krystal.uk and ns1.krystal.co.uk resolve to 77.72.0.11 IP addresses each.

Both ns2.krystal.uk and ns2.krystal.co.uk resolve to 139.162.230.184 IP addresses each.

Mail Servers

simpleclean.app uses two mail servers, mx1.krystalhosting.com and mx2.krystalhosting.com.

The mail server setup of simpleclean.app matches that of other domains such as morganpielli.com, slotreviewsonline.com, dandare.org.uk and two others.

The two host names mx1.krystalhosting.com and mx2.krystalhosting.com each have a pair of IP addresses: mx1.krystalhosting.com has 185.53.56.44 and 185.53.56.46, and mx2.krystalhosting.com has 185.53.56.45 and 185.53.56.47.