`sifrr.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:34ba^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:cada^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.52.186^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.202.218^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clyde.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b5b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`clyde.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`clyde.ns.cloudflare.com`
		A	108.162.193.91^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
		A	172.64.33.91^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
		A	173.245.59.91^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clyde.ns.cloudflare.com`
NS	`reza.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ad9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`reza.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`reza.ns.cloudflare.com`
		A	108.162.192.217^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	172.64.32.217^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	173.245.58.217^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
MX	`mail.dijitalbloks.co.uk` ⭐
		A	77.37.44.220^{🇩🇪 IIHOS00177.37.44.0/22 HOSTINGER IN}
			PTR	`mail.dijitalbloks.co.uk`
TXT	`google-site-verification=Z-bQF8dMoq8djiyPir8kEl7OcQH_-K7jeLTtwd6Eabg`
TXT	`twilio-domain-verification=149979c55ba81bd53ddff96b640d6388`
TXT	`v=spf1 mx ra=postmaster -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.52.186, 172.67.202.218
		IPv6 hints	2606:4700:3033::6815:34ba, 2606:4700:3033::ac43:cada
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=19, name=cloudflare-ech.com
SOA	`clyde.ns.cloudflare.com`dns@cloudflare.com serial=2405551092

`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=1783248606

Same first word

sifrr.github.io

sifrr.com

Similar names

rrifs.org

frisr.nl

irfsr.com

rrifs.net

firrs.com

frris.nl

firsr.com

rrifs.com

frisr.com

DNS History

16 records (7 active, 9 former)

●NSclyde.ns.cloudflare.com2026-06-29 → 2026-07-05 · 3 obs

○ 2017-08-22 19:51:34
● 2026-06-29 10:06:28
● 2026-07-05 11:13:32

○NSns-cloud-e1.googledomains.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

○NSns-cloud-e2.googledomains.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

○NSns-cloud-e3.googledomains.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

○NSns-cloud-e4.googledomains.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

●NSreza.ns.cloudflare.com2026-06-29 → 2026-07-05 · 3 obs

○ 2017-08-22 19:51:34
● 2026-06-29 10:06:28
● 2026-07-05 11:13:32

○MXalt1.aspmx.l.google.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

○MXalt2.aspmx.l.google.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

○MXalt3.aspmx.l.google.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

○MXalt4.aspmx.l.google.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

○MXaspmx.l.google.com2016-12-19 → 2017-08-22 · 4 obs

● 2016-12-19 01:08:48
● 2017-08-22 19:51:34
○ 2026-06-29 10:06:28
○ 2026-07-05 11:13:32

●MXmail.dijitalbloks.co.uk2026-06-29 → 2026-07-05 · 3 obs

○ 2017-08-22 19:51:34
● 2026-06-29 10:06:28
● 2026-07-05 11:13:32

●A104.21.52.1862026-06-29 → 2026-07-05 · 2 obs

● 2026-06-29 10:06:28
● 2026-07-05 11:13:32

●A172.67.202.2182026-06-29 → 2026-07-05 · 2 obs

● 2026-06-29 10:06:28
● 2026-07-05 11:13:32

●A2606:4700:3033::6815:34ba2026-06-29 → 2026-07-05 · 2 obs

● 2026-06-29 10:06:28
● 2026-07-05 11:13:32

●A2606:4700:3033::ac43:cada2026-06-29 → 2026-07-05 · 2 obs

● 2026-06-29 10:06:28
● 2026-07-05 11:13:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net...	-
sifrr.com	clyde.ns.cloudflare.com, reza.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.91

NS records: clyde.ns.cloudflare.com, reza.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sifrr.com (unsigned zone)

⏱️ Timing

Total: 330ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.52.186, 172.67.202.218`
AAAA	2	`2606:4700:3033::6815:34ba, 2606:4700:3033::ac43:cada`
NS	2	`clyde.ns.cloudflare.com, reza.ns.cloudflare.com`
MX	1	`mail.dijitalbloks.co.uk (pri: 10)`
TXT	3	`google-site-verification=Z-bQF8dMoq8djiy, twilio-domain-verification=149979c55ba81...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`clyde.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

sifrr.com directs to four IP numbers, which are 104.21.52.186, 172.67.202.218, 2606:4700:3033::6815:34ba and 2606:4700:3033::ac43:cada.

www.bjboundary.com, quotes.cleanenergyauthority.com, dsl-protect.pro and two other host names share IP numbers with sifrr.com.

Name Servers

sifrr.com is delegated to two name servers: clyde.ns.cloudflare.com and reza.ns.cloudflare.com.

sifrr.com uses the same name servers as several other domains — among them cabanias.net, opp.agency, aikats.us and two more.

At least some of sifrr.com's name servers are shared with other domains, for example ilmatar.nl, (0x706f726e)actress.net, watchtna.com and two more.

These name servers tend to be deployed in combination with the name servers elle.ns.cloudflare.com and nola.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

clyde.ns.cloudflare.com resolves to 108.162.193.91, 172.64.33.91, 173.245.59.91 and 3 other IP addresses.

reza.ns.cloudflare.com resolves to 108.162.192.217, 172.64.32.217, 173.245.58.217 and 3 other IP addresses.

Mail Servers

Mail for sifrr.com is handled by a single mail server, mail.dijitalbloks.co.uk.

mail.dijitalbloks.co.uk resolves to a single IP number: 77.37.44.220.

sifrr.com - robtex.com

sifrr.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`sifrr.com`

`com`