`linux.quercus-technologies.com`

DNSSEC	⚠️ Not signed
A	81.61.137.113^{🇪🇸 ONO-AS81.61.128.0/18 Ono www.ono.es CABLEUROPA S.A.U C/ Emisora, 20 28224 Pozuelo de Alarc�n Madrid SPAIN}
		PTR	`linux.quercus.biz`

`quercus-technologies.com`

	DNSSEC	⚠️ Not signed
	A	35.195.87.163^{🇧🇪 Google35.195.80.0/20}
	NS	`ns-cloud-b1.googledomains.com` ⭐
	NS	`ns-cloud-b2.googledomains.com`
	NS	`ns-cloud-b3.googledomains.com`
	NS	`ns-cloud-b4.googledomains.com`
	MX	`quercustechnologies-com01i.mail.protection.outlook.com` ⭐
	TXT	`sending_domain490761=2db02ca0abd539f2146a886f5a1b7161f8c9a36bfcefb2a108f0ecb0...`
	TXT	`MS=ms59823376`
	TXT	`google-site-verification=TSwXdgZxFbBU4t1_fnKbfHlJJ52Hbpm9G-Ek2dp99js`
	TXT	`v=spf1 include:spf.protection.outlook.com -all`
	TXT	`google-site-verification=TClcDMdYYGGQO1jt34ZtjGkfrFbVvUQgl5ZrvbA7oXk`
	TXT	`pardot490761=a592219b57d7bc90a39a38bd3067dacde7260b51e17a81909a3c9e3503536a9a`
	TXT	`atlassian-domain-verification=ERcGa1bqvLloKlDj4zoW8W7/aTxB0geKWpJqRLOvS0zmFhy...`
	SOA	`ns-cloud-b1.googledomains.com`cloud-dns-hostmaster@google.com serial=1

Previously MX for

quercus-technologies.com

Same first word

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linux.nic.in

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linux.fail

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linux.biz

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linux.st

linux.pf

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linux.sh.cn

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DNS History

1 record (1 active, 0 former)

●A81.61.137.1132015-06-15 → 2026-07-15 · 2 obs

● 2015-06-15 11:13:36
● 2026-07-15 14:27:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net...	-
quercus-technologies.com	ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.38.107

NS records: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for quercus-technologies.com (unsigned zone)

⏱️ Timing

Total: 539ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.61.137.113`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-b1.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com...)

Analysis

IP Addresses

linux.quercus-technologies.com resolves to one IP address: 81.61.137.113.

linux.quercus-technologies.com - robtex.com