professorchart.com - dns.ninja

professorchart.com

DNSSEC⚠️ Not signed
A157.230.79.23πŸ‡©πŸ‡ͺ DIGITALOCEAN157.230.76.0/22 DigitalOcean
NSns1.digitalocean.com ⭐
A2606:4700:52::ac40:34d2πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
A172.64.52.210πŸ‡ΊπŸ‡Έ Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.digitalocean.com
NSns2.digitalocean.com
A2606:4700:5a::ac40:3515πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
A172.64.53.21πŸ‡ΊπŸ‡Έ Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.digitalocean.com
NSns3.digitalocean.com
A2606:4700:52::ac40:31d1πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
A172.64.49.209πŸ‡ΊπŸ‡Έ Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns3.digitalocean.com
MXmx2.zoho.com ⭐
A136.143.183.44πŸ‡ΊπŸ‡Έ ZohoAS136.143.182.0/23 Zoho
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
MXmx3.zoho.com(20)
A204.141.43.44πŸ‡ΊπŸ‡Έ ZohoAS204.141.42.0/23 Zoho Corporation
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx6.zoho.com
PTRmx7.zoho.com
PTRmx8.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
MXmx.zoho.com(50)
A204.141.43.44πŸ‡ΊπŸ‡Έ ZohoAS204.141.42.0/23 Zoho Corporation
PTRmx2.zoho.com
PTRmx3.zoho.com
PTRmx6.zoho.com
PTRmx7.zoho.com
PTRmx8.zoho.com
PTRmx.zoho.com
PTRmx2.zohomail.com
PTRmx3.zohomail.com
PTRmx.zohomail.com
TXTv=spf1 include:zoho.com ~all
SOAns1.digitalocean.comhostmaster@professorchart.com serial=0

com

Same first word

Similar names

DNS History

12 records (7 active, 5 former)

2017201820192020202120222023202420252026NSns1.digitalocean.comns2.digitalocean.comns3.digitalocean.comdns1.canaldominios.comdns2.canaldominios.comdns3.canaldominios.comdns4.canaldominios.comMXmx.zoho.commx2.zoho.commx3.zoho.comA157.230.79.2392.222.12.196
β—‹NSdns1.canaldominios.com2016-12-16 β†’ 2017-11-28 Β· 4 obs
● 2016-12-16 01:18:54
● 2017-11-28 09:43:28
β—‹ 2026-03-27 01:07:28
β—‹ 2026-08-09 23:45:18
β—‹NSdns2.canaldominios.com2016-12-16 β†’ 2017-11-28 Β· 4 obs
● 2016-12-16 01:18:54
● 2017-11-28 09:43:28
β—‹ 2026-03-27 01:07:28
β—‹ 2026-08-09 23:45:18
β—‹NSdns3.canaldominios.com2016-12-16 β†’ 2017-11-28 Β· 4 obs
● 2016-12-16 01:18:54
● 2017-11-28 09:43:28
β—‹ 2026-03-27 01:07:28
β—‹ 2026-08-09 23:45:18
β—‹NSdns4.canaldominios.com2016-12-16 β†’ 2017-11-28 Β· 4 obs
● 2016-12-16 01:18:54
● 2017-11-28 09:43:28
β—‹ 2026-03-27 01:07:28
β—‹ 2026-08-09 23:45:18
●NSns1.digitalocean.com2026-03-27 β†’ 2026-08-09 Β· 3 obs
β—‹ 2017-11-28 09:43:28
● 2026-03-27 01:07:28
● 2026-08-09 23:45:18
●NSns2.digitalocean.com2026-03-27 β†’ 2026-08-09 Β· 3 obs
β—‹ 2017-11-28 09:43:28
● 2026-03-27 01:07:28
● 2026-08-09 23:45:18
●NSns3.digitalocean.com2026-03-27 β†’ 2026-08-09 Β· 3 obs
β—‹ 2017-11-28 09:43:28
● 2026-03-27 01:07:28
● 2026-08-09 23:45:18
●MXmx.zoho.com2016-12-16 β†’ 2026-08-09 Β· 2 obs
● 2016-12-16 01:18:54
● 2026-08-09 23:45:18
●MXmx2.zoho.com2016-12-16 β†’ 2026-08-09 Β· 2 obs
● 2016-12-16 01:18:54
● 2026-08-09 23:45:18
●MXmx3.zoho.com2026-03-27 β†’ 2026-08-09 Β· 3 obs
β—‹ 2016-12-16 01:18:54
● 2026-03-27 01:07:28
● 2026-08-09 23:45:18
●A157.230.79.232026-03-27 β†’ 2026-08-09 Β· 3 obs
β—‹ 2017-11-28 09:43:28
● 2026-03-27 01:07:28
● 2026-08-09 23:45:18
β—‹A92.222.12.1962016-12-16 β†’ 2017-11-28 Β· 4 obs
● 2016-12-16 01:18:54
● 2017-11-28 09:43:28
β—‹ 2026-03-27 01:07:28
β—‹ 2026-08-09 23:45:18

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
professorchart.comns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com3 records

βœ… Authoritative Response

Server:172.64.52.210

NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for professorchart.com (unsigned zone)

⏱️ Timing

Total: 277ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A1157.230.79.23
NS3ns1.digitalocean.com, ns3.digitalocean.com...
MX3mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...
TXT1v=spf1 include:zoho.com ~all
SOA1ns1.digitalocean.com hostmaster.professo

πŸ“Œ Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com)

Analysis

IP Addresses

professorchart.com resolves to just one IP address, 157.230.79.23.

Other host names, among them stonicks.com and www.stonicks.com, have IP numbers in common with professorchart.com.

Name Servers

professorchart.com carries NS records delegating to ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

At least some of professorchart.com's name servers are shared with other domains, for example 132.68.138.in-addr.arpa, negotiationskillsassessment.com, 53.122.134.in-addr.arpa and two more.

ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com are three hostnames that each resolve to a pair of IP addresses: ns1.digitalocean.com to 172.64.52.210 and 2606:4700:52::ac40:34d2, ns2.digitalocean.com to 172.64.53.21 and 2606:4700:5a::ac40:3515, and ns3.digitalocean.com to 172.64.49.209 and 2606:4700:52::ac40:31d1.

Mail Servers

The MX records for professorchart.com list three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

There is at least a partial MX overlap between professorchart.com and other domains, including chiangwang.go.th, megatr8.com, cherishbelize.com and two others.

Each of mx2.zoho.com, mx3.zoho.com and mx.zoho.com resolves to one IP address: mx2.zoho.com to 136.143.183.44, and both mx3.zoho.com and mx.zoho.com to 204.141.43.44.

mx3.zoho.com along with mx.zoho.com each resolve to 204.141.43.44 IP addresses.