`scienceoptimizer.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:aac1^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:374f^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.55.79^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.170.193^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sarah.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26da^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2da^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sarah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22da^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sarah.ns.cloudflare.com`
		A	108.162.194.218^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
		A	162.159.38.218^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
		A	172.64.34.218^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sarah.ns.cloudflare.com`
NS	`skip.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`skip.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`skip.ns.cloudflare.com`
		A	108.162.193.233^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	172.64.33.233^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	173.245.59.233^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
MX	`mx2.zoho.com` ⭐
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 include:zohomail.com ~all`
TXT	`zoho-verification=zb17483104.zmverify.zoho.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.55.79, 172.67.170.193
		IPv6 hints	2606:4700:3033::ac43:aac1, 2606:4700:3037::6815:374f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=143, name=cloudflare-ech.com
SOA	`sarah.ns.cloudflare.com`dns@cloudflare.com serial=2400380294

`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=1776043857

Previously MX for

scienceoptimizer.com

Same first word

scienceoptimizer.com

DNS History

17 records (9 active, 8 former)

○NSns01.cashparking.com2026-03-05 → 2026-03-05 · 4 obs

○ 2016-04-14 00:50:30
● 2026-03-05 19:25:54
○ 2026-04-13 01:41:42
○ 2026-04-13 01:41:44

○NSns02.cashparking.com2026-03-05 → 2026-03-05 · 4 obs

○ 2016-04-14 00:50:30
● 2026-03-05 19:25:54
○ 2026-04-13 01:41:42
○ 2026-04-13 01:41:44

○NSns1.grantfoundry.com2015-07-02 → 2016-04-14 · 4 obs

● 2015-07-02 07:53:42
● 2016-04-14 00:50:30
○ 2026-03-05 19:25:54
○ 2026-04-13 01:41:44

○NSns2.grantfoundry.com2015-07-02 → 2016-04-14 · 4 obs

● 2015-07-02 07:53:42
● 2016-04-14 00:50:30
○ 2026-03-05 19:25:54
○ 2026-04-13 01:41:44

●NSsarah.ns.cloudflare.com2026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

●NSskip.ns.cloudflare.com2026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

●MXmx.zoho.com2026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

●MXmx2.zoho.com2026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

●MXmx3.zoho.com2026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

○MXscienceoptimizer.com2015-07-02 → 2016-04-14 · 4 obs

● 2015-07-02 07:53:42
● 2016-04-14 00:50:30
○ 2026-03-05 19:25:54
○ 2026-04-13 01:41:44

●A104.21.55.792026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

○A15.197.204.562026-03-05 → 2026-03-05 · 4 obs

○ 2016-04-14 00:50:30
● 2026-03-05 19:25:54
○ 2026-04-13 01:41:42
○ 2026-04-13 01:41:44

●A172.67.170.1932026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

○A198.57.159.1182015-07-02 → 2016-04-14 · 4 obs

● 2015-07-02 07:53:42
● 2016-04-14 00:50:30
○ 2026-03-05 19:25:54
○ 2026-04-13 01:41:44

●A2606:4700:3033::ac43:aac12026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

●A2606:4700:3037::6815:374f2026-04-13 → 2026-04-13 · 3 obs

○ 2026-03-05 19:25:54
● 2026-04-13 01:41:42
● 2026-04-13 01:41:44

○A3.33.243.1452026-03-05 → 2026-03-05 · 4 obs

○ 2016-04-14 00:50:30
● 2026-03-05 19:25:54
○ 2026-04-13 01:41:42
○ 2026-04-13 01:41:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
scienceoptimizer.com	skip.ns.cloudflare.com, sarah.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.233

NS records: skip.ns.cloudflare.com, sarah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for scienceoptimizer.com (unsigned zone)

⏱️ Timing

Total: 183ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.55.79, 172.67.170.193`
AAAA	2	`2606:4700:3033::ac43:aac1, 2606:4700:3037::6815:374f`
NS	2	`sarah.ns.cloudflare.com, skip.ns.cloudflare.com`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	2	`v=spf1 include:zohomail.com ~all, zoho-verification=zb17483104.zmverify.zo`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sarah.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (skip.ns.cloudflare.com, skip.ns.cloudflare.com, skip.ns.cloudflare.com...)

Analysis

IP Addresses

scienceoptimizer.com maps to four IP numbers: 2606:4700:3033::ac43:aac1, 2606:4700:3037::6815:374f, 104.21.55.79 and 172.67.170.193.

Other host names, for instance rpc23.go2me.top, second.go2me.top, rpc57.go2me.top, captneli.com and upordown.de share IP numbers with scienceoptimizer.com.

Name Servers

Two name servers sarah.ns.cloudflare.com and skip.ns.cloudflare.com handle delegation for scienceoptimizer.com.

scienceoptimizer.com uses the same name server setup as other domains, for example raxelpak.com, poker.org.ua, aksenlift.com, anzact.com and soptimizer.com.

scienceoptimizer.com partially shares name servers with other domains; examples include echobet.ca, ecency.com, studiojessicamiranda.com.br, l-c.com.ua and aagrapevine.org.

These name servers are commonly used with sharon.ns.cloudflare.com, malcolm.ns.cloudflare.com and agustin.ns.cloudflare.com.

Host names with six IP numbers: sarah.ns.cloudflare.com points to: 2606:4700:50::a29f:26da, 2803:f800:50::6ca2:c2da, 2a06:98c1:50::ac40:22da, 108.162.194.218, 162.159.38.218 and 172.64.34.218; skip.ns.cloudflare.com points to: 2606:4700:58::adf5:3be9, 2803:f800:50::6ca2:c1e9, 2a06:98c1:50::ac40:21e9, 108.162.193.233, 172.64.33.233 and 173.245.59.233.

Mail Servers

scienceoptimizer.com is handled by three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

scienceoptimizer.com shares some mail servers with other domains, at least partially, such as perfumeoasis.me, chapelhillmfg.com, gabberdoodledesigns.com, lexmark-hk.com and bikinibellas.com.

Host names with two IP numbers:

The host name mx.zoho.com points to: 136.143.183.44 and 136.143.191.44.

Host names with one IP number:

The host name mx2.zoho.com points to: 136.143.183.44.

The host name mx3.zoho.com points to: 136.143.191.44.

Host names that point to 136.143.183.44: mx.zoho.com and mx2.zoho.com.

Host names that point to 136.143.191.44: mx.zoho.com and mx3.zoho.com.

scienceoptimizer.com - robtex.com