`jefremov.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:8e2^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:9e15^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.226^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.158.21^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`leif.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cde^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leif.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3de^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`leif.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23de^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`leif.ns.cloudflare.com`
		A	108.162.195.222^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leif.ns.cloudflare.com`
		A	162.159.44.222^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leif.ns.cloudflare.com`
		A	172.64.35.222^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`leif.ns.cloudflare.com`
NS	`ollie.ns.cloudflare.com`
		A	2606:4700:50::a29f:2647^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ollie.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c247^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ollie.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2247^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ollie.ns.cloudflare.com`
		A	108.162.194.71^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ollie.ns.cloudflare.com`
		A	162.159.38.71^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ollie.ns.cloudflare.com`
		A	172.64.34.71^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ollie.ns.cloudflare.com`
MX	`mx.stackmail.com` ⭐
		A	185.151.28.67^{🇬🇧 TWENTYI185.151.28.0/24}
			PTR	`mx.stackmail.com`
TXT	`v=spf1 include:spf.stackmail.com a mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.8.226, 172.67.158.21
		IPv6 hints	2606:4700:3030::6815:8e2, 2606:4700:3035::ac43:9e15
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=97, name=cloudflare-ech.com
SOA	`leif.ns.cloudflare.com`dns@cloudflare.com serial=2398721256

`net`

	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=1776963611

WOT: SAFE (61/100)

Same first word

jefremov.net

DNS History

10 records (7 active, 3 former)

●NSleif.ns.cloudflare.com2026-03-31 → 2026-04-23 · 3 obs

○ 2017-04-20 10:06:28
● 2026-03-31 08:23:02
● 2026-04-23 17:10:42

○NSns1.erdves.lt2015-06-18 → 2017-04-20 · 4 obs

● 2015-06-18 00:37:36
● 2017-04-20 10:06:28
○ 2026-03-31 08:23:02
○ 2026-04-23 17:10:42

○NSns2.erdves.lt2015-06-18 → 2017-04-20 · 4 obs

● 2015-06-18 00:37:36
● 2017-04-20 10:06:28
○ 2026-03-31 08:23:02
○ 2026-04-23 17:10:42

●NSollie.ns.cloudflare.com2026-03-31 → 2026-04-23 · 3 obs

○ 2017-04-20 10:06:28
● 2026-03-31 08:23:02
● 2026-04-23 17:10:42

●MXmx.stackmail.com2026-03-31 → 2026-04-23 · 2 obs

● 2026-03-31 08:23:02
● 2026-04-23 17:10:42

●A104.21.8.2262026-03-31 → 2026-04-23 · 3 obs

○ 2017-04-20 10:06:28
● 2026-03-31 08:23:02
● 2026-04-23 17:10:42

●A172.67.158.212026-03-31 → 2026-04-23 · 3 obs

○ 2017-04-20 10:06:28
● 2026-03-31 08:23:02
● 2026-04-23 17:10:42

○A217.9.240.862015-06-18 → 2017-04-20 · 4 obs

● 2015-06-18 00:37:36
● 2017-04-20 10:06:28
○ 2026-03-31 08:23:02
○ 2026-04-23 17:10:42

●A2606:4700:3030::6815:8e22026-03-31 → 2026-04-23 · 3 obs

○ 2017-04-20 10:06:28
● 2026-03-31 08:23:02
● 2026-04-23 17:10:42

●A2606:4700:3035::ac43:9e152026-03-31 → 2026-04-23 · 3 obs

○ 2017-04-20 10:06:28
● 2026-03-31 08:23:02
● 2026-04-23 17:10:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jefremov.net	ollie.ns.cloudflare.com, leif.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.71

NS records: ollie.ns.cloudflare.com, leif.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jefremov.net (unsigned zone)

⏱️ Timing

Total: 289ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.8.226, 172.67.158.21`
AAAA	2	`2606:4700:3030::6815:8e2, 2606:4700:3035::ac43:9e15`
NS	2	`leif.ns.cloudflare.com, ollie.ns.cloudflare.com`
MX	1	`mx.stackmail.com (pri: 10)`
TXT	1	`v=spf1 include:spf.stackmail.com a mx -a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`leif.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

jefremov.net resolves to four IPs: 2606:4700:3030::6815:8e2, 2606:4700:3035::ac43:9e15, 104.21.8.226 and 172.67.158.21.

Other host names, for instance ext3data.blugrid.in.net, edge-effect.co.uk, jazixerogiiaoperations.digital, blackwellrealtyandauction.com and hoki108b.com share IP numbers with jefremov.net.

Name Servers

jefremov.net has two name servers: leif.ns.cloudflare.com and ollie.ns.cloudflare.com.

jefremov.net shares the same name server setup as other domains, for example ligohealthcenter.com, discreetarmsdealer.com, aircondku.com, shortlistabudhabi.com and just(0x706f726e).info.

jefremov.net shares some name servers with other domains, for example newlaobote.com, e-linux.cn, brahmagroupinc.com, pgpmukomuko.org and dynora26operations.click.

These name servers are commonly used with toby.ns.cloudflare.com, kim.ns.cloudflare.com, emma.ns.cloudflare.com, zeus.ns.cloudflare.com and evelyn.ns.cloudflare.com.

Host names with six IP numbers: leif.ns.cloudflare.com points to: 2606:4700:58::a29f:2cde, 2803:f800:50::6ca2:c3de, 2a06:98c1:50::ac40:23de, 108.162.195.222, 162.159.44.222 and 172.64.35.222; ollie.ns.cloudflare.com points to: 2606:4700:50::a29f:2647, 2803:f800:50::6ca2:c247, 2a06:98c1:50::ac40:2247, 108.162.194.71, 162.159.38.71 and 172.64.34.71.

Mail Servers

jefremov.net is handled by a single mail server, mx.stackmail.com.

jefremov.net shares the mail server setup with other domains, for example flashwerks.net, lavamac.co.uk, pilton.co.uk, bethnal.co.uk and cfactorworks.com.

jefremov.net shares at least some mail servers with other domains, for example isa-asu.org.

Host name mx.stackmail.com points to IP 185.151.28.67.

jefremov.net - robtex.com

jefremov.net

net

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`jefremov.net`

`net`