🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`returnblock.com`

DNSSEC	⚠️ Not signed
A	207.207.210.23
A	207.207.210.36
A	207.207.210.50
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4023:c03::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dy-in-f26.1e100.net`
		A	2607:f8b0:4023:c03::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dy-in-f27.1e100.net`
		A	2607:f8b0:4023:c0b::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dd-in-f26.1e100.net`
		A	2607:f8b0:4023:c0b::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dd-in-f27.1e100.net`
		A	74.125.137.26^{🇺🇸 Google74.125.137.0/24}
			PTR	`dy-in-f26.1e100.net`
		A	142.250.141.26^{🇺🇸 Google142.250.141.0/24}
			PTR	`dd-in-f26.1e100.net`
		A	142.250.141.27^{🇺🇸 Google142.250.141.0/24}
			PTR	`dd-in-f27.1e100.net`
		A	142.251.2.26^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f26.1e100.net`
		A	142.251.2.27^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f27.1e100.net`
TXT	`google-site-verification=Dq0DblMKrf9Z3M_ONEOCkg9T2-yOPTzkQdjXlADe_U8`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2419208792

`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=1794481596

Same first word

returnblock.com

Similar names

turnerblock.com

blockreturn.com

blockreturn.xyz

Previous names

Next names

DNS History

12 records (8 active, 4 former)

●NScuritiba.ns.porkbun.com2026-09-01 → 2026-11-12 · 3 obs

○ 2017-11-19 05:49:40
● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

●NSfortaleza.ns.porkbun.com2026-09-01 → 2026-11-12 · 3 obs

○ 2017-11-19 05:49:40
● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

●NSmaceio.ns.porkbun.com2026-09-01 → 2026-11-12 · 3 obs

○ 2017-11-19 05:49:40
● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

○NSns-cloud-b1.googledomains.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 17:17:36
○ 2017-11-19 05:49:40
○ 2026-11-12 11:23:58

○NSns-cloud-b2.googledomains.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 17:17:36
○ 2017-11-19 05:49:40
○ 2026-11-12 11:23:58

○NSns-cloud-b3.googledomains.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 17:17:36
○ 2017-11-19 05:49:40
○ 2026-11-12 11:23:58

○NSns-cloud-b4.googledomains.com2016-12-20 → 2016-12-20 · 3 obs

● 2016-12-20 17:17:36
○ 2017-11-19 05:49:40
○ 2026-11-12 11:23:58

●NSsalvador.ns.porkbun.com2026-09-01 → 2026-11-12 · 3 obs

○ 2017-11-19 05:49:40
● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

●MXsmtp.google.com2026-09-01 → 2026-11-12 · 2 obs

● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

●A207.207.210.232026-09-01 → 2026-11-12 · 2 obs

● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

●A207.207.210.362026-09-01 → 2026-11-12 · 2 obs

● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

●A207.207.210.502026-09-01 → 2026-11-12 · 2 obs

● 2026-09-01 13:46:48
● 2026-11-12 11:23:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
returnblock.com	maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com	8 records

✅ Authoritative Response

Server:173.245.58.37

NS records: maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for returnblock.com (unsigned zone)

⏱️ Timing

Total: 1106ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`207.207.210.50, 207.207.210.23...`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=Dq0DblMKrf9Z3M_, v=spf1 include:_spf.google.com ~all`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (maceio.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com...)

Analysis

IP Addresses

returnblock.com has three IP addresses: 207.207.210.23, 207.207.210.36 and 207.207.210.50.

Among the host names that share IP numbers with returnblock.com are nafeesapp.com, isuzuppf.com, hiremairead.com and two others.

Name Servers

The domain returnblock.com is delegated to these four name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

The name servers of returnblock.com overlap at least partially with those of other domains — among them ledgitpictures.com, fluxspheres.ca, mytophat.app and two more.

Each of the four hosts curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com has two IP addresses. curitiba.ns.porkbun.com points to 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25. fortaleza.ns.porkbun.com points to 162.159.8.140 and 2400:cb00:2049:1::a29f:88c. maceio.ns.porkbun.com points to 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4. salvador.ns.porkbun.com points to 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

returnblock.com routes its mail through a single mail server, smtp.google.com.

returnblock.com has the same mail server arrangement as a number of other domains, for example cro-performance.com, pelletierfamily.com, collegealongside.org and two more.

returnblock.com shares at least some of its mail servers with other domains — for example teacherretirementsupport.org, ctwebworks.co, sanj.co.in and two more.

These mail servers tend to be used in conjunction with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two additional mail servers.

smtp.google.com directs to 9 IP numbers, including 74.125.137.26, 142.250.141.26 and 142.250.141.27, along with 6 other.

returnblock.com - robtex.com

returnblock.com

com

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`returnblock.com`

`com`