`stmicroelectronics.com`

DNSSEC	⚠️ Not signed
A	54.194.135.49^{🇮🇪 Amazon54.194.0.0/16 VPC DUB 54.194.0.0/16}
		PTR	`ec2-54-194-135-49.eu-west-1.compute.amazonaws.com`
NS	`delta.dmz-eu.st.com` ⭐
		A	164.129.1.37^{Verizon-dual-homed-customers164.129.0.0/16}
			PTR	`delta.dmz-eu.st.com`
NS	`a1-23.akam.net`
		A	2600:1401:2::17^{🇺🇸 Akamai2600:1401:2::/48 Technologies}
			PTR	`a1-23.akam.net`
			PTR	`ns1-23.akam.net`
		A	193.108.91.23^{🇳🇱 Akamai193.108.91.0/24 Technologies}
			PTR	`a1-23.akam.net`
			PTR	`ns1-23.akam.net`
NS	`a2-66.akam.net`
		A	2600:1480:7000::42^{🇺🇸 Akamai2600:1480:7000::/48 Technologies}
			PTR	`a2-66.akam.net`
		A	95.100.174.66^{🇳🇱 Akamai95.100.174.0/24 Technologies}
			PTR	`a2-66.akam.net`
NS	`a28-66.akam.net`
		A	2600:1480:d800::42^{🇺🇸 Akamai2600:1480:d800::/48 Technologies}
			PTR	`a28-66.akam.net`
		A	95.100.173.66^{🇳🇱 Akamai95.100.173.0/24 Technologies}
			PTR	`a28-66.akam.net`
NS	`a5-64.akam.net`
		A	2600:1480:b000::40^{🇺🇸 Akamai2600:1480:b000::/48 Technologies}
			PTR	`a5-64.akam.net`
			PTR	`ns6-64.akam.net`
		A	95.100.168.64^{🇳🇱 Akamai95.100.168.0/24 Technologies}
			PTR	`a5-64.akam.net`
			PTR	`ns6-64.akam.net`
NS	`a8-66.akam.net`
		A	2600:1403:a::42^{🇺🇸 Akamai2600:1403:a::/48 Technologies}
			PTR	`a8-66.akam.net`
		A	2.16.40.66^{🇳🇱 Akamai2.16.40.0/24 Technologies}
			PTR	`a8-66.akam.net`
NS	`a9-65.akam.net`
		A	2a02:26f0:117::41^{🇳🇱 Akamai2a02:26f0:117::/48 Technologies}
			PTR	`a9-65.akam.net`
			PTR	`ns5-65.akam.net`
		A	184.85.248.65^{🇺🇸 Akamai184.85.248.0/24 Technologies}
			PTR	`a9-65.akam.net`
			PTR	`ns5-65.akam.net`
NS	`delta.dmz-ap.st.com`
		A	138.198.100.37^{🇬🇧 UUNET-JP-AP138.198.0.0/16}
			PTR	`delta.dmz-ap.st.com`
NS	`delta.dmz-us.st.com`
		A	167.4.1.37^{🇺🇸 AS7046167.4.0.0/16 STMicroelectronics}
			PTR	`delta.dmz-us.st.com`
MX	`st-com.mail.protection.outlook.com` ⭐
		A	52.101.68.8^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du0pr03cu00100.inbound.protection.outlook.com`
		A	52.101.68.12^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db9pr02cu00204.inbound.protection.outlook.com`
		A	52.101.73.11^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.73.28^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00204.inbound.protection.outlook.com`
TXT	`MS=ms94011725`
TXT	`v=spf1 ip4:164.129.1.35 -all`
SOA	`delta.dmz-eu.st.com`dnsmaster@st.com 2013-11-11 #58

`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=1778340216

WOT: SAFE (84/100)

Subdomains

www.stmicroelectronics.com

Same first word

stmicroelectronics.co.it

stmicroelectronics.ru

stmicroelectronics.net

stmicroelectronics.tn

stmicroelectronics.it

stmicroelectronics.cn

stmicroelectronics.com.cn

stmicroelectronics.org

stmicroelectronics.us

stmicroelectronics.com

DNS History

13 records (11 active, 2 former)

●NSa1-23.akam.net2026-03-03 → 2026-05-09 · 3 obs

○ 2015-06-19 07:32:34
● 2026-03-03 10:11:52
● 2026-05-09 15:40:54

●NSa2-66.akam.net2026-03-03 → 2026-05-09 · 3 obs

○ 2015-06-19 07:32:34
● 2026-03-03 10:11:52
● 2026-05-09 15:40:54

●NSa28-66.akam.net2026-03-03 → 2026-05-09 · 3 obs

○ 2015-06-19 07:32:34
● 2026-03-03 10:11:52
● 2026-05-09 15:40:54

●NSa5-64.akam.net2026-03-03 → 2026-05-09 · 3 obs

○ 2015-06-19 07:32:34
● 2026-03-03 10:11:52
● 2026-05-09 15:40:54

●NSa8-66.akam.net2026-03-03 → 2026-05-09 · 3 obs

○ 2015-06-19 07:32:34
● 2026-03-03 10:11:52
● 2026-05-09 15:40:54

●NSa9-65.akam.net2026-03-03 → 2026-05-09 · 3 obs

○ 2015-06-19 07:32:34
● 2026-03-03 10:11:52
● 2026-05-09 15:40:54

●NSdelta.dmz-ap.st.com2015-06-19 → 2026-05-09 · 2 obs

● 2015-06-19 07:32:34
● 2026-05-09 15:40:54

●NSdelta.dmz-eu.st.com2015-06-19 → 2026-05-09 · 2 obs

● 2015-06-19 07:32:34
● 2026-05-09 15:40:54

●NSdelta.dmz-us.st.com2015-06-19 → 2026-05-09 · 2 obs

● 2015-06-19 07:32:34
● 2026-05-09 15:40:54

○MXmxa-00178001.gslb.pphosted.com2015-06-19 → 2026-03-27 · 4 obs

● 2015-06-19 07:32:34
● 2026-03-27 14:49:50
○ 2026-04-01 14:52:44
○ 2026-05-09 15:40:54

○MXmxb-00178001.gslb.pphosted.com2015-06-19 → 2026-03-27 · 4 obs

● 2015-06-19 07:32:34
● 2026-03-27 14:49:50
○ 2026-04-01 14:52:44
○ 2026-05-09 15:40:54

●MXst-com.mail.protection.outlook.com2026-04-01 → 2026-05-09 · 3 obs

○ 2026-03-27 14:49:50
● 2026-04-01 14:52:44
● 2026-05-09 15:40:54

●A54.194.135.492016-11-20 → 2026-05-09 · 2 obs

● 2016-11-20 20:07:12
● 2026-05-09 15:40:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, d.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net...	-
stmicroelectronics.com	delta.dmz-us.st.com, delta.dmz-ap.st.com, delta.dmz-eu.st.com, a9-65.akam.net...	3 records

✅ Authoritative Response

Server:193.108.91.23

NS records: delta.dmz-us.st.com, delta.dmz-ap.st.com, delta.dmz-eu.st.com, a9-65.akam.net, a28-66.akam.net, a5-64.akam.net, a2-66.akam.net, a1-23.akam.net, a8-66.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stmicroelectronics.com (unsigned zone)

⏱️ Timing

Total: 424ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.194.135.49`
NS	9	`delta.dmz-ap.st.com, a8-66.akam.net...`
MX	1	`st-com.mail.protection.outlook.com (pri:`
TXT	2	`MS=ms94011725, v=spf1 ip4:164.129.1.35 -all`
SOA	1	`delta.dmz-eu.st.com dnsmaster.st.com`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (delta.dmz-us.st.com, delta.dmz-ap.st.com, delta.dmz-eu.st.com)

Analysis

Hierarchy

The parent of www.stmicroelectronics.com is stmicroelectronics.com.

IP Addresses

stmicroelectronics.com points to an IP address: 54.194.135.49.

other host names include st.com.cn, xn--dckck4azcweriwe2eck.com, xn--dckj5cucypia.com, st.com and atollic.com; they share IP numbers with stmicroelectronics.com.

Name Servers

stmicroelectronics.com is delegated to nine name servers: a1-23.akam.net, a2-66.akam.net, a28-66.akam.net, a5-64.akam.net, a8-66.akam.net, a9-65.akam.net, delta.dmz-ap.st.com, delta.dmz-eu.st.com and delta.dmz-us.st.com.

stmicroelectronics.com at least partially shares name servers with other domains, for instance bijohrawel.nl, singaporetourism.com.sg, cosstores.com.au, monki.com.br and portal.auone.jp.

these name servers are commonly used with a3-64.akam.net, a5-67.akam.net, a6-65.akam.net, a24-65.akam.net, a8-64.akam.net, a11-66.akam.net, a7-64.akam.net, a4-64.akam.net, a14-67.akam.net and a11-64.akam.net.

Hosts with two IP numbers

- Host a1-23.akam.net points to 2600:1401:2::17 and 193.108.91.23

- Host a2-66.akam.net points to 2600:1480:7000::42 and 95.100.174.66

- Host a28-66.akam.net points to 2600:1480:d800::42 and 95.100.173.66

- Host a5-64.akam.net points to 2600:1480:b000::40 and 95.100.168.64

- Host a8-66.akam.net points to 2600:1403:a::42 and 2.16.40.66

- Host a9-65.akam.net points to 2a02:26f0:117::41 and 184.85.248.65

Hosts with one IP number

- Host delta.dmz-ap.st.com points to 138.198.100.37

- Host delta.dmz-eu.st.com points to 164.129.1.37

- Host delta.dmz-us.st.com points to 167.4.1.37

Mail Servers

stmicroelectronics.com is handled by a single mail server, st-com.mail.protection.outlook.com.

stmicroelectronics.com uses the same mail server setup as other domains, for instance stmicroelectronics.cn, synad.com, str7.de, stlinux.com and oraclehcm.st.com.

Host st-com.mail.protection.outlook.com points to four IP numbers: 52.101.68.8, 52.101.68.12, 52.101.73.11 and 52.101.73.28.

stmicroelectronics.com - robtex.com