optimalsci.com - robtex.com
optimalsci.com
com
| DNSSEC | ๐ Signed (DS record present) | ||||||
| NS | a.gtld-servers.net โญ | ||||||
| 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.netnstld@verisign-grs.com serial=1784106232 | ||||||
Same first word
optimalsci.com |
Similar names
DNS History
16 records (11 active, 5 former)
โNSns-cloud-b1.googledomains.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โNSns-cloud-b2.googledomains.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โNSns-cloud-b3.googledomains.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โNSns-cloud-b4.googledomains.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โNSns05.domaincontrol.com2015-05-13 โ 2016-09-08 ยท 4 obs
โ 2016-09-08 14:42:56
โ 2017-04-05 07:19:54
โ 2026-07-15 09:27:50
โNSns06.domaincontrol.com2015-05-13 โ 2016-09-08 ยท 4 obs
โ 2016-09-08 14:42:56
โ 2017-04-05 07:19:54
โ 2026-07-15 09:27:50
โMXalt1.aspmx.l.google.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โMXalt2.aspmx.l.google.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โMXalt3.aspmx.l.google.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โMXalt4.aspmx.l.google.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โMXaspmx.l.google.com2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โMXmailstore1.secureserver.net2015-05-13 โ 2016-09-08 ยท 4 obs
โ 2016-09-08 14:42:56
โ 2017-04-05 07:19:54
โ 2026-07-15 09:27:50
โMXsmtp.secureserver.net2015-05-13 โ 2016-09-08 ยท 4 obs
โ 2016-09-08 14:42:56
โ 2017-04-05 07:19:54
โ 2026-07-15 09:27:50
โA23.227.38.682026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โA2620:127:f00f:8::2026-07-11 โ 2026-07-15 ยท 3 obs
โ 2026-07-11 13:42:12
โ 2026-07-15 09:27:50
โA50.63.202.852015-05-13 โ 2016-09-08 ยท 4 obs
โ 2016-09-08 14:42:56
โ 2017-04-05 07:19:54
โ 2026-07-15 09:27:50
๐ DNS Trace
๐ Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net... | - |
| optimalsci.com | ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com | 8 records |
โ Authoritative Response
Server:216.239.36.107
NS records: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com
๐ DNSSEC Status
โ ๏ธ Insecure (no DNSSEC)
No DS record for optimalsci.com (unsigned zone)
โฑ๏ธ Timing
Total: 369ms | Queries: -
๐ Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 23.227.38.68 |
| AAAA | 1 | 2620:127:f00f:8:: |
| NS | 4 | ns-cloud-b4.googledomains.com, ns-cloud-b2.googledomains.com... |
| MX | 5 | alt1.aspmx.l.google.com (pri: 5), alt2.aspmx.l.google.com (pri: 5)... |
| TXT | 1 | google-site-verification=QORoXoyrIgc0dvA |
| SOA | 1 | ns-cloud-b1.googledomains.com cloud-dns- |
๐ Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns-cloud-b1.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com...)
Analysis
IP Addresses
optimalsci.com resolves to the IP addresses 23.227.38.68 and 2620:127:f00f:8::
unikulma.fi, humormegifts.com, bigdogdumpsters.com plus two other host names have IP numbers in common with optimalsci.com.
Name Servers
Four name servers handle the delegation for optimalsci.com: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com and ns-cloud-b4.googledomains.com.
optimalsci.com has at least partial name server overlap with other domains, such as consentiv.com, cats-country.co.uk, londonharmon.com and two others.
It is common to see these name servers used together with name servers ns1.mirusresearch.com and ns2.mir.us.
ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com and ns-cloud-b4.googledomains.com all point to exactly two IP numbers each: ns-cloud-b1.googledomains.com โ 216.239.32.107 and 2001:4860:4802:32::6b; ns-cloud-b2.googledomains.com โ 216.239.34.107 and 2001:4860:4802:34::6b; ns-cloud-b3.googledomains.com โ 216.239.36.107 and 2001:4860:4802:36::6b; ns-cloud-b4.googledomains.com โ 216.239.38.107 and 2001:4860:4802:38::6b.
Mail Servers
optimalsci.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
At least some of the mail servers used by optimalsci.com are shared with other domains: ns500758.ns500759.ns500758.ns500698.ns500758.ns500736.ns500698.ns500736.ns500735.ns500735.ns500736.ns500708.ns500698.ns500576.ns500619.ns500619.trackreceptor.com, mafbla.org, ns500731.ns500671.ns500731.ns500731.ns500704.ns500688.ns500678.ns500688.ns500704.ns500671.ns500671.lusty(0x736c7574)z.com and two others among them.
These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names pointing to two IP addresses:
aspmx.l.google.com resolves to 172.253.62.26 and 2607:f8b0:4004:c29::1a.
alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1b.
alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com resolves to 172.253.157.27 and 2a00:1450:400c:c23::1b.