sendgrid.us - robtex.com

sendgrid.us

DNSSEC⚠️ Not signed
A3.33.139.32πŸ‡ΊπŸ‡Έ Amazon3.33.128.0/20
PTRaeedc42b70c898c66.awsglobalaccelerator.com
NSns1.markmonitor.com ⭐
A2620:10a:80a8::1πŸ‡¨πŸ‡¦ CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada
A149.112.160.1πŸ‡¨πŸ‡¦ CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada
PTRip-149-112-160-1.defastlink.net
NSns2.markmonitor.com
A2001:67c:10b8::1πŸ‡¨πŸ‡­ RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net
PTRns2.markmonitor.com
A176.97.158.1πŸ‡¦πŸ‡Ή RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net
PTRns2.markmonitor.com
NSns3.markmonitor.com
A2620:10a:80a9::1πŸ‡¨πŸ‡¦ CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada
A149.112.161.1πŸ‡¨πŸ‡¦ CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada
PTRip-149-112-161-1.defastlink.net
NSns4.markmonitor.com
A2001:67c:1bc::1πŸ‡¦πŸ‡Ή RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast
PTRns1.markmonitor.com
A192.174.68.1πŸ‡¦πŸ‡Ή RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net
PTRns1.markmonitor.com
SOAns1.markmonitor.comhostmaster@markmonitor.com 2026-02-04 #2

us

DNSSECπŸ”’ Signed (DS record present)
NSa.cctld.us ⭐ πŸ”’
NSb.cctld.us πŸ”’
NSf.cctld.us πŸ”’
NSk.cctld.us πŸ”’
NSm.cctld.us πŸ”’
NSn.cctld.us πŸ”’
NSw.cctld.us πŸ”’
NSx.cctld.us πŸ”’
NSy.cctld.us πŸ”’
SOAa.cctld.usadmin@tldns.godaddy serial=1771291699

Same first word

Similar names

DNS History

5 records (5 active, 0 former)

NSns1.markmonitor.comns2.markmonitor.comns3.markmonitor.comns4.markmonitor.comA3.33.139.32
●NSns1.markmonitor.com2026-02-16 β†’ 2026-03-02 Β· 2 obs
● 2026-02-16 09:33:46
● 2026-03-02 01:51:44
●NSns2.markmonitor.com2026-02-16 β†’ 2026-03-02 Β· 2 obs
● 2026-02-16 09:33:46
● 2026-03-02 01:51:44
●NSns3.markmonitor.com2026-02-16 β†’ 2026-03-02 Β· 2 obs
● 2026-02-16 09:33:46
● 2026-03-02 01:51:44
●NSns4.markmonitor.com2026-02-16 β†’ 2026-03-02 Β· 2 obs
● 2026-02-16 09:33:46
● 2026-03-02 01:51:44
●A3.33.139.322026-02-16 β†’ 2026-03-02 Β· 2 obs
● 2026-02-16 09:33:46
● 2026-03-02 01:51:44

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
usm.cctld.us, k.cctld.us, b.cctld.us, x.cctld.us...-
sendgrid.usns3.markmonitor.com, ns1.markmonitor.com, ns2.markmonitor.com, ns4.markmonitor.com-

βœ… Authoritative Response

Server: 149.112.160.1

NS records: ns3.markmonitor.com, ns1.markmonitor.com, ns2.markmonitor.com, ns4.markmonitor.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sendgrid.us (unsigned zone)

⏱️ Timing

Total: 981ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A13.33.139.32
NS4ns4.markmonitor.com, ns1.markmonitor.com...
SOA1ns1.markmonitor.com hostmaster.markmonit

Analysis

IP Addresses

sendgrid.us resolves to a single IP address: 3.33.139.32.

Other host names including championsalessportswear.com, morningstaradviser.mobi, 2dehand.net, audiojungle.co and clarivate.com.ar share IP numbers with sendgrid.us.

Name Servers

sendgrid.us is delegated to four name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and ns4.markmonitor.com.

sendgrid.us at least partially shares name servers with other domains, including searchingforcouponssucks.com, thermadorappliancedigitalrewards.com, corp23.com, your-marlboro.de and espervie.co.

these name servers are commonly used together with ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Hosts with two IP numbers:

Host ns1.markmonitor.com points to 2620:10a:80a8::1 and 149.112.160.1

Host ns2.markmonitor.com points to 2001:67c:10b8::1 and 176.97.158.1

Host ns3.markmonitor.com points to 2620:10a:80a9::1 and 149.112.161.1

Host ns4.markmonitor.com points to 2001:67c:1bc::1 and 192.174.68.1