`onlineoffice.app`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:4d12^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:cb88^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.77.18^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.203.136^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aria.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a44^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c044^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aria.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2044^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aria.ns.cloudflare.com`
		A	108.162.192.68^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	172.64.32.68^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
		A	173.245.58.68^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aria.ns.cloudflare.com`
NS	`julio.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cd1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julio.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3d1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`julio.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23d1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`julio.ns.cloudflare.com`
		A	108.162.195.209^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julio.ns.cloudflare.com`
		A	162.159.44.209^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julio.ns.cloudflare.com`
		A	172.64.35.209^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julio.ns.cloudflare.com`
MX	`mx00.ionos.de` ⭐
		A	212.227.15.41^{🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2}
			PTR	`mx00.kundenserver.de`
MX	`mx01.ionos.de` ⭐
		A	217.72.192.67^{🇩🇪 IONOS-AS217.72.192.0/20 Web.de}
			PTR	`mx01.kundenserver.de`
TXT	`v=spf1 include:_spf-eu.ionos.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.77.18, 172.67.203.136
		IPv6 hints	2606:4700:3037::6815:4d12, 2606:4700:3037::ac43:cb88
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=119, name=cloudflare-ech.com
SOA	`aria.ns.cloudflare.com`dns@cloudflare.com serial=2402521560

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

⚠️ On DNS blocklist: light, multi, pro, pro.plus, tif, ultimate
🔒 HSTS Preload (+subdomains)

Same first word

Similar names

DNS History

14 records (8 active, 6 former)

●NSaria.ns.cloudflare.com2026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-15 18:06:30
● 2026-04-24 13:42:22

●NSjulio.ns.cloudflare.com2026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-15 18:06:30
● 2026-04-24 13:42:22

○NSns1037.ui-dns.biz2026-04-15 → 2026-04-15 · 2 obs

● 2026-04-15 18:06:30
○ 2026-04-24 13:42:22

○NSns1074.ui-dns.com2026-04-15 → 2026-04-15 · 2 obs

● 2026-04-15 18:06:30
○ 2026-04-24 13:42:22

○NSns1112.ui-dns.org2026-04-15 → 2026-04-15 · 2 obs

● 2026-04-15 18:06:30
○ 2026-04-24 13:42:22

○NSns1125.ui-dns.de2026-04-15 → 2026-04-15 · 2 obs

● 2026-04-15 18:06:30
○ 2026-04-24 13:42:22

●MXmx00.ionos.de2026-04-15 → 2026-04-24 · 2 obs

● 2026-04-15 18:06:30
● 2026-04-24 13:42:22

●MXmx01.ionos.de2026-04-15 → 2026-04-24 · 2 obs

● 2026-04-15 18:06:30
● 2026-04-24 13:42:22

●A104.21.77.182026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-15 18:06:30
● 2026-04-24 13:42:22

●A172.67.203.1362026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-15 18:06:30
● 2026-04-24 13:42:22

○A2001:8d8:100f:f000::2002026-04-15 → 2026-04-15 · 2 obs

● 2026-04-15 18:06:30
○ 2026-04-24 13:42:22

○A217.160.0.2072026-04-15 → 2026-04-15 · 2 obs

● 2026-04-15 18:06:30
○ 2026-04-24 13:42:22

●A2606:4700:3037::6815:4d122026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-15 18:06:30
● 2026-04-24 13:42:22

●A2606:4700:3037::ac43:cb882026-04-24 → 2026-04-24 · 2 obs

○ 2026-04-15 18:06:30
● 2026-04-24 13:42:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
app	ns-tld5.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
onlineoffice.app	aria.ns.cloudflare.com, julio.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.209

NS records: aria.ns.cloudflare.com, julio.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for onlineoffice.app (unsigned zone)

⏱️ Timing

Total: 523ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.203.136, 104.21.77.18`
AAAA	2	`2606:4700:3037::ac43:cb88, 2606:4700:3037::6815:4d12`
NS	2	`aria.ns.cloudflare.com, julio.ns.cloudflare.com`
MX	2	`mx00.ionos.de (pri: 10), mx01.ionos.de (pri: 10)`
TXT	1	`v=spf1 include:_spf-eu.ionos.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aria.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

onlineoffice.app resolves to four IP numbers: 2606:4700:3037::6815:4d12, 2606:4700:3037::ac43:cb88, 104.21.77.18 and 172.67.203.136.

Other host names such as www.i6v.cc, m.milanstand.com, whatismyphone.com, sagapao.it and pojahome.co.id share IPs with onlineoffice.app.

Name Servers

onlineoffice.app is delegated to two name servers: aria.ns.cloudflare.com and julio.ns.cloudflare.com.

onlineoffice.app shares the same name server setup as fuqq.cam, katymanorapartments.com, vetergy.com, promofit.nl and fundmatrix.xyz.

onlineoffice.app at least partially shares name servers with other domains, for instance researchatkids.com, supremevipgroup.com, daltonmaag.com, eartboard.com and thoitiet.edu.vn.

These name servers are commonly used together with annabel.ns.cloudflare.com, elinore.ns.cloudflare.com and igor.ns.cloudflare.com.

Host names with six IP numbers:

aria.ns.cloudflare.com points to 2606:4700:50::adf5:3a44, 2803:f800:50::6ca2:c044, 2a06:98c1:50::ac40:2044, 108.162.192.68, 172.64.32.68 and 173.245.58.68.

julio.ns.cloudflare.com points to 2606:4700:58::a29f:2cd1, 2803:f800:50::6ca2:c3d1, 2a06:98c1:50::ac40:23d1, 108.162.195.209, 162.159.44.209 and 172.64.35.209.

Mail Servers

onlineoffice.app is handled by two mail servers: mx00.ionos.de and mx01.ionos.de.

The mail server setup for onlineoffice.app matches that of other domains, for instance cornils.net, muster-vorlagen.de, hortus-der-garten.de, super-boutique.de and marertravel.com.

Host names with a single IP:

mx00.ionos.de points to 212.227.15.41.

mx01.ionos.de points to 217.72.192.67.

onlineoffice.app - robtex.com