`derwentfm.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:826a^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:85d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.93^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.130.106^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`leah.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a81^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c081^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`leah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2081^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`leah.ns.cloudflare.com`
		A	108.162.192.129^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	172.64.32.129^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
		A	173.245.58.129^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leah.ns.cloudflare.com`
NS	`vern.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vern.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vern.ns.cloudflare.com`
		A	108.162.193.243^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	172.64.33.243^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
		A	173.245.59.243^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vern.ns.cloudflare.com`
MX	`eu-smtp-inbound-1.mimecast.com` ⭐
		A	91.220.42.201^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.211^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.241^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.201^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.211^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.241^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
MX	`eu-smtp-inbound-2.mimecast.com` ⭐
		A	91.220.42.201^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.211^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.241^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.201^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.211^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.241^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
TXT	`0ed1fe018a4e3df8f61f7c4e1f8d6fd3a4fb824e86`
TXT	`MS=ms79291685`
TXT	`MS=ms79293520`
TXT	`_uh63oiluhh0fps9j4enu83i1ub8983i`
TXT	`adobe-idp-site-verification=e4d3d12ade0ffa91d6f37563b7769991d37a533a7d68028bd...`
TXT	`apple-domain-verification=hcveHU3dm6ciyk5t`
TXT	`apple-domain-verification=hp2mxfziN3h11XzX`
TXT	`e7+b6LlVatTj7vgiPe7Wg1zmevTFZlMa/bQpzI3em7+q3Z16DldpPXOYoerUiABNlnMegtrQaNUZk...`
TXT	`google-site-verification=5ptqFpqjdYpxSt_ljrCTitLpgb855qMrw6w4uUZeRSA`
TXT	`ms-domain-verification=ddfab264-88ea-4a5d-a476-c37553b909cd`
TXT	`v=spf1 mx a ip4:78.40.145.0/24 ip4:62.252.232.0/24 ip4:10.77.15.0/24 ip4:5.22...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.8.93, 172.67.130.106
		IPv6 hints	2606:4700:3034::ac43:826a, 2606:4700:3035::6815:85d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=100, name=cloudflare-ech.com
SOA	`leah.ns.cloudflare.com`dns@cloudflare.com serial=2407441551

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784369182

Same first word

derwentfm.eu

derwentfm.com

derwentfm.co.uk

DNS History

21 records (8 active, 13 former)

●NSleah.ns.cloudflare.com2026-06-29 → 2026-07-18 · 3 obs

○ 2017-03-30 17:14:36
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

○NSns1.afternic.com2015-10-19 → 2015-12-23 · 5 obs

○ 2015-05-28 22:34:00
● 2015-10-19 12:53:42
● 2015-12-23 10:18:50
○ 2016-03-26 09:31:40
○ 2026-07-18 10:15:00

○NSns1.namebrightdns.com2015-05-28 → 2017-03-30 · 7 obs

● 2015-05-28 22:34:00
○ 2015-10-19 12:53:42
○ 2015-12-23 10:18:50
● 2016-03-26 09:31:40
● 2017-03-30 17:14:36
○ 2026-06-29 13:01:02
○ 2026-07-18 10:15:00

○NSns2.namebrightdns.com2015-05-28 → 2017-03-30 · 7 obs

● 2015-05-28 22:34:00
○ 2015-10-19 12:53:42
○ 2015-12-23 10:18:50
● 2016-03-26 09:31:40
● 2017-03-30 17:14:36
○ 2026-06-29 13:01:02
○ 2026-07-18 10:15:00

●NSvern.ns.cloudflare.com2026-06-29 → 2026-07-18 · 3 obs

○ 2017-03-30 17:14:36
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

○MXanmail.namebrightmail.com2015-05-28 → 2015-05-28 · 3 obs

● 2015-05-28 22:34:00
○ 2015-10-19 12:53:42
○ 2026-07-18 10:15:00

●MXeu-smtp-inbound-1.mimecast.com2026-06-29 → 2026-07-18 · 3 obs

○ 2015-10-19 12:53:42
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

●MXeu-smtp-inbound-2.mimecast.com2026-06-29 → 2026-07-18 · 3 obs

○ 2015-10-19 12:53:42
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

●A104.21.8.932026-06-29 → 2026-07-18 · 3 obs

○ 2017-03-30 17:14:36
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

●A172.67.130.1062026-06-29 → 2026-07-18 · 3 obs

○ 2017-03-30 17:14:36
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

○A184.168.221.1042015-10-19 → 2015-12-23 · 5 obs

○ 2015-05-28 22:34:00
● 2015-10-19 12:53:42
● 2015-12-23 10:18:50
○ 2016-03-26 09:31:40
○ 2026-07-18 10:15:00

●A2606:4700:3034::ac43:826a2026-06-29 → 2026-07-18 · 3 obs

○ 2017-03-30 17:14:36
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

●A2606:4700:3035::6815:85d2026-06-29 → 2026-07-18 · 3 obs

○ 2017-03-30 17:14:36
● 2026-06-29 13:01:02
● 2026-07-18 10:15:00

○A52.204.129.222017-03-30 → 2017-03-30 · 4 obs

○ 2016-03-26 09:31:40
● 2017-03-30 17:14:36
○ 2026-06-29 13:01:02
○ 2026-07-18 10:15:00

○A52.21.180.2332016-03-26 → 2016-03-26 · 4 obs

○ 2015-12-23 10:18:50
● 2016-03-26 09:31:40
○ 2017-03-30 17:14:36
○ 2026-07-18 10:15:00

○A52.3.120.902016-03-26 → 2016-03-26 · 4 obs

○ 2015-12-23 10:18:50
● 2016-03-26 09:31:40
○ 2017-03-30 17:14:36
○ 2026-07-18 10:15:00

○A54.209.246.1822015-05-28 → 2015-05-28 · 3 obs

● 2015-05-28 22:34:00
○ 2026-06-29 13:01:02
○ 2026-07-18 10:15:00

○A54.85.127.702017-03-30 → 2017-03-30 · 4 obs

○ 2016-03-26 09:31:40
● 2017-03-30 17:14:36
○ 2026-06-29 13:01:02
○ 2026-07-18 10:15:00

○A54.85.146.1862015-05-28 → 2015-05-28 · 3 obs

● 2015-05-28 22:34:00
○ 2026-06-29 13:01:02
○ 2026-07-18 10:15:00

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-05-28 → 2016-03-26 · 6 obs

● 2015-05-28 22:34:00
○ 2015-10-19 12:53:42
○ 2015-12-23 10:18:50
● 2016-03-26 09:31:40
○ 2017-03-30 17:14:36
○ 2026-07-18 10:15:00

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-03-30 → 2017-03-30 · 4 obs

○ 2016-03-26 09:31:40
● 2017-03-30 17:14:36
○ 2026-06-29 13:01:02
○ 2026-07-18 10:15:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
derwentfm.com	leah.ns.cloudflare.com, vern.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.243

NS records: leah.ns.cloudflare.com, vern.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for derwentfm.com (unsigned zone)

⏱️ Timing

Total: 253ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.130.106, 104.21.8.93`
AAAA	2	`2606:4700:3035::6815:85d, 2606:4700:3034::ac43:826a`
NS	2	`leah.ns.cloudflare.com, vern.ns.cloudflare.com`
MX	2	`eu-smtp-inbound-1.mimecast.com (pri: 10), eu-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	11	`0ed1fe018a4e3df8f61f7c4e1f8d6fd3a4fb824e, MS=ms79291685...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`leah.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

derwentfm.com points to the four IP addresses 104.21.8.93, 172.67.130.106, 2606:4700:3034::ac43:826a and 2606:4700:3035::6815:85d.

promlangdintiscut.com, thenextclic.com, spoe-protect.pro and two other host names share IP numbers with derwentfm.com.

Name Servers

DNS delegation for derwentfm.com points to two name servers: leah.ns.cloudflare.com and vern.ns.cloudflare.com.

derwentfm.com uses the same name servers as several other domains — among them talesofvoices.fr, hipas.info, albertasda.ca and two more.

There is at least partial name server overlap between derwentfm.com and other domains — isotonic99.ru, hotelmurahbandung.id, uptrendcenter.com and two more among them.

These name servers are routinely deployed together with the name servers mona.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

leah.ns.cloudflare.com has IP addresses 108.162.192.129, 172.64.32.129 and 173.245.58.129, plus 3 other.

vern.ns.cloudflare.com has IP addresses 108.162.193.243, 172.64.33.243 and 173.245.59.243, plus 3 other.

Mail Servers

Mail for derwentfm.com is handled by two mail servers — eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

derwentfm.com uses an identical mail server configuration to several other domains — among them mcbride.cloud, operio.com, starlight-express.de and two more.

derwentfm.com has at least partial mail server overlap with other domains such as henley-homes.co.uk, papajohns.ie, sussexeurocompliancegroup.com and two more.

Hostnames that resolve to 6 IP addresses:

eu-smtp-inbound-1.mimecast.com has IP addresses 91.220.42.201, 91.220.42.211 and 91.220.42.241, plus 3 other.

eu-smtp-inbound-2.mimecast.com has IP addresses 91.220.42.201, 91.220.42.211 and 91.220.42.241, plus 3 other.

Host names pointing to 91.220.42.201 IP addresses: eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

Host names pointing to 91.220.42.211 IP addresses: eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

Host names pointing to 91.220.42.241 IP addresses: eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

Host names pointing to 195.130.217.201 IP addresses: eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

Host names pointing to 195.130.217.211 IP addresses: eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

Host names pointing to 195.130.217.241 IP addresses: eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.