professorbloch.com - robtex.com

professorbloch.com

DNSSEC⚠️ Not signed
A198.49.23.144🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
A198.49.23.145🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
A198.185.159.144🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
A198.185.159.145🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US ✓ In HTTPS hints
NSnsd1.squarespacedns.com ⭐
A216.239.32.109🇺🇸 Google216.239.32.0/24
PTRns-cloud-d1.googledomains.com
NSnsd2.squarespacedns.com
A216.239.34.109🇺🇸 Google216.239.34.0/24
PTRns-cloud-d2.googledomains.com
NSnsd3.squarespacedns.com
A216.239.36.109🇺🇸 Google216.239.36.0/24
PTRns-cloud-d3.googledomains.com
NSnsd4.squarespacedns.com
A216.239.38.109🇺🇸 Google216.239.38.0/24
PTRns-cloud-d4.googledomains.com
MXsmtp.google.com ⭐
A2607:f8b0:4004:c21::1b🇺🇸 Google2607:f8b0:4004::/48
PTRpe-in-f27.1e100.net
A2607:f8b0:4004:c25::1a🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadtq-in-f26.1e100.net
A2607:f8b0:4004:c27::1a🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadsk-in-f26.1e100.net
A2607:f8b0:4004:c27::1b🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadsk-in-f27.1e100.net
A64.233.180.27🇺🇸 Google64.233.180.0/24
PTRon-in-f27.1e100.net
PTRpe-in-f27.1e100.net
A172.253.139.26🇺🇸 Google172.253.139.0/24
PTRyuiadsk-in-f26.1e100.net
A172.253.139.27🇺🇸 Google172.253.139.0/24
PTRyuiadsk-in-f27.1e100.net
A192.178.218.26🇺🇸 Google192.178.218.0/24
PTRyuiadtq-in-f26.1e100.net
A192.178.218.27🇺🇸 Google192.178.218.0/24
PTRyuiadtq-in-f27.1e100.net
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/2, HTTP/1.1 ✓ hints match
IPv4 hints198.185.159.144, 198.185.159.145, 198.49.23.144, 198.49.23.145
SOAnsd1.squarespacedns.comcloud-dns-hostmaster@google.com serial=1

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=1784813797

Subdomains

www.professorbloch.com

Same first word

professorbloch.com

DNS History

9 records (9 active, 0 former)

NSnsd1.squarespacedns.comnsd2.squarespacedns.comnsd3.squarespacedns.comnsd4.squarespacedns.comMXsmtp.google.comA198.185.159.144198.185.159.145198.49.23.144198.49.23.145
●NSnsd1.squarespacedns.com2026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●NSnsd2.squarespacedns.com2026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●NSnsd3.squarespacedns.com2026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●NSnsd4.squarespacedns.com2026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●MXsmtp.google.com2026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●A198.185.159.1442026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●A198.185.159.1452026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●A198.49.23.1442026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56
●A198.49.23.1452026-07-16 → 2026-07-23 · 2 obs
● 2026-07-16 23:53:48
● 2026-07-23 13:42:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
professorbloch.comnsd1.squarespacedns.com, nsd2.squarespacedns.com, nsd3.squarespacedns.com, nsd4.squarespacedns.com4 records

✅ Authoritative Response

Server:216.239.32.109

NS records: nsd1.squarespacedns.com, nsd2.squarespacedns.com, nsd3.squarespacedns.com, nsd4.squarespacedns.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 482ms | Queries: -

📄 Records

TypeCountSample Data
A4198.185.159.144, 198.185.159.145...
NS4nsd1.squarespacedns.com, nsd3.squarespacedns.com...
MX1smtp.google.com (pri: 1)
TXT1v=spf1 include:_spf.google.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h2",
SOA1nsd1.squarespacedns.com cloud-dns-hostma

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (nsd1.squarespacedns.com, nsd2.squarespacedns.com, nsd3.squarespacedns.com...)

Analysis

Hierarchy

www.professorbloch.com is delegated beneath professorbloch.com.

IP Addresses

professorbloch.com directs to four IP numbers, which are 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

Among the host names that share IP numbers with professorbloch.com are graja.biz, paintnboard.com, lt100history.com and two others.

Name Servers

The domain professorbloch.com is delegated to these four name servers: nsd1.squarespacedns.com, nsd2.squarespacedns.com, nsd3.squarespacedns.com and nsd4.squarespacedns.com.

There is at least partial name server overlap between professorbloch.com and other domains — brianteel.com, samurabusinesssolutions.com, takedatkd475onmicrosoftcom.com and two more among them.

nsd1.squarespacedns.com resolves to 216.239.32.109. nsd2.squarespacedns.com resolves to 216.239.34.109. nsd3.squarespacedns.com resolves to 216.239.36.109. nsd4.squarespacedns.com resolves to 216.239.38.109. All four hosts carry exactly one IP address.

Mail Servers

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

professorbloch.com has the same mail server arrangement as a number of other domains, for example pedeafeto.com, fernandoprieto.com, gereluk.com and two more.

professorbloch.com shares at least some of its mail servers with other domains — for example enosis.com, nordcons.com, mytapia.org and two more.

It is common for these mail servers to co-occur with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com as mail servers.

smtp.google.com directs to 9 IP numbers, including 64.233.180.27, 172.253.139.26 and 172.253.139.27, along with 6 other.