f-response.com - robtex.com

f-response.com

DNSSEC⚠️ Not signed
A143.42.139.36🇺🇸 AKAMAI-LINODE-AP143.42.128.0/20 Akamai Technologies
PTR143-42-139-36.ip.linodeusercontent.com
NSns1.linode.com ⭐
A2600:14c0:6::2🇺🇸 Akamai2600:14c0:6::/48 Technologies
PTRc1-2.akashield.net
A92.123.94.2🇳🇱 Akamai92.123.94.0/24 Technologies
PTRc1-2.akashield.net
NSns2.linode.com
A2600:14c0:6::3🇺🇸 Akamai2600:14c0:6::/48 Technologies
PTRc1-3.akashield.net
A92.123.94.3🇳🇱 Akamai92.123.94.0/24 Technologies
PTRc1-3.akashield.net
NSns3.linode.com
A2600:14c0:7::3🇺🇸 Akamai2600:14c0:7::/48 Technologies
PTRc2-3.akashield.net
A92.123.95.3🇳🇱 Akamai92.123.95.0/24 Technologies
PTRc2-3.akashield.net
NSns4.linode.com
A2600:14c0:7::4🇺🇸 Akamai2600:14c0:7::/48 Technologies
PTRc2-4.akashield.net
A92.123.95.4🇳🇱 Akamai92.123.95.0/24 Technologies
PTRc2-4.akashield.net
NSns5.linode.com ⚠️ Not in parent delegation
A2600:14c0:7::2🇺🇸 Akamai2600:14c0:7::/48 Technologies
PTRc2-2.akashield.net
A92.123.95.2🇳🇱 Akamai92.123.95.0/24 Technologies
PTRc2-2.akashield.net
MXfresponse-com0c.mail.protection.outlook.com ⭐
A2a01:111:f403:c902::1🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sj2pr05cu00401.inbound.protection.outlook.com
A2a01:111:f403:c931::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sn1pr02cu00100.inbound.protection.outlook.com
A2a01:111:f403:c946::7🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-ch5pr02cu00307.inbound.protection.outlook.com
A2a01:111:f403:f802::1🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sj2pr05cu00101.inbound.protection.outlook.com
A52.101.9.24🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-bl2pr02cu00400.inbound.protection.outlook.com
A52.101.11.7🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sa9pr04cu00107.inbound.protection.outlook.com
A52.101.40.24🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cy5pr05cu00100.inbound.protection.outlook.com
A52.101.194.12🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ch0pr04cu00504.inbound.protection.outlook.com
TXTv=spf1 ip4:104.131.19.69 include:spf.protection.outlook.com -all
SOAns1.linode.compostmaster@f-response.com serial=2021000029

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=1774586017
WOT: SAFE (60/100)

Subdomains

www.f-response.com

Same first word

f-response.com

DNS History

8 records (7 active, 1 former)

20162017201820192020202120222023202420252026NSns1.linode.comns2.linode.comns3.linode.comns4.linode.comns5.linode.comMXfresponse-com0c.mail.protection.outlook.comA143.42.139.3696.126.115.204
●NSns1.linode.com2015-08-06 → 2026-03-27 · 2 obs
● 2015-08-06 15:44:12
● 2026-03-27 04:55:48
●NSns2.linode.com2015-08-06 → 2026-03-27 · 2 obs
● 2015-08-06 15:44:12
● 2026-03-27 04:55:48
●NSns3.linode.com2015-08-06 → 2026-03-27 · 2 obs
● 2015-08-06 15:44:12
● 2026-03-27 04:55:48
●NSns4.linode.com2015-08-06 → 2026-03-27 · 2 obs
● 2015-08-06 15:44:12
● 2026-03-27 04:55:48
●NSns5.linode.com2015-08-06 → 2026-03-27 · 2 obs
● 2015-08-06 15:44:12
● 2026-03-27 04:55:48
●MXfresponse-com0c.mail.protection.outlook.com2015-08-06 → 2026-03-27 · 2 obs
● 2015-08-06 15:44:12
● 2026-03-27 04:55:48
●A143.42.139.362026-03-27 → 2026-03-27 · 3 obs
○ 2017-02-19 01:27:12
● 2026-03-27 04:55:46
● 2026-03-27 04:55:48
○A96.126.115.2042015-08-06 → 2017-02-19 · 4 obs
● 2015-08-06 15:44:12
● 2017-02-19 01:27:12
○ 2026-03-27 04:55:46
○ 2026-03-27 04:55:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
f-response.comns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com8 records

✅ Authoritative Response

Server:92.123.95.4

NS records: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for f-response.com (unsigned zone)

⏱️ Timing

Total: 271ms | Queries: -

📄 Records

TypeCountSample Data
A1143.42.139.36
NS5ns4.linode.com, ns5.linode.com...
MX1fresponse-com0c.mail.protection.outlook.
TXT1v=spf1 ip4:104.131.19.69 include:spf.pro
SOA1ns1.linode.com postmaster.f-response.com

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.linode.com, ns1.linode.com, ns2.linode.com...)

Analysis

Hierarchy

f-response.com is the parent of www.f-response.com.

IP Addresses

f-response.com resolves to a single IP: 143.42.139.36.

Other host names, for instance, www.f-response.com and 143-42-139-36.ip.linodeusercontent.com share IP numbers with f-response.com.

Name Servers

f-response.com delegates to five name servers: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com and ns5.linode.com.

f-response.com shares some name servers with other domains, for example kc3fgs.com, saipex.net, clearwaterfiredamage.com, bio(0x616e616c)isebage.com.br and agrarico.com.

Host names with two IPs:

Host ns1.linode.com has IPs 2600:14c0:6::2 and 92.123.94.2.

Host ns2.linode.com has IPs 2600:14c0:6::3 and 92.123.94.3.

Host ns3.linode.com has IPs 2600:14c0:7::3 and 92.123.95.3.

Host ns4.linode.com has IPs 2600:14c0:7::4 and 92.123.95.4.

Host ns5.linode.com has IPs 2600:14c0:7::2 and 92.123.95.2.

Mail Servers

f-response.com is handled by a single mail server, fresponse-com0c.mail.protection.outlook.com.

Host fresponse-com0c.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::1, 2a01:111:f403:c931::, 2a01:111:f403:c946::7, 2a01:111:f403:f802::1, 52.101.9.24, 52.101.11.7, 52.101.40.24 and 52.101.194.12.