`source.valvesoftware.com`

CNAME	`developer.valvesoftware.com`
DNSSEC	⚠️ Not signed
A	2600:1408:a:22::212:435b^{🇺🇸 AKAMAI-ASN12600:1408:a::/48 Akamai Technologies}
		PTR	`g2600-1408-000a-0022-0000-0000-0212-435b.deploy.static.akamaitechnologies.com`
A	2600:1408:a:22::212:435e^{🇺🇸 AKAMAI-ASN12600:1408:a::/48 Akamai Technologies}
A	2.18.67.91^{🇫🇷 AKAMAI-ASN12.18.67.0/24 Akamai Technologies}
A	2.18.67.94^{🇫🇷 AKAMAI-ASN12.18.67.0/24 Akamai Technologies}
MX	`mxa.mailgun.org` ⭐
		A	34.160.63.108^{🇺🇸 Google34.160.0.0/16}
			PTR	`108.63.160.34.bc.googleusercontent.com`
MX	`mxb.mailgun.org` ⭐
		A	34.160.63.108^{🇺🇸 Google34.160.0.0/16}
			PTR	`108.63.160.34.bc.googleusercontent.com`
TXT	`v=spf1 include:mailgun.org ~all`

`valvesoftware.com`

	DNSSEC	⚠️ Not signed
	A	2.23.141.145^{🇳🇱 Akamai2.23.136.0/21 Technologies}
	NS	`a1-164.akam.net` ⭐ ⚠️ Not in zone NS records
	NS	`a1-194.akam.net` ⚠️ Not in parent delegation
	NS	`a11-67.akam.net` ⚠️ Not in zone NS records
	NS	`a2-64.akam.net` ⚠️ Not in parent delegation
	NS	`a22-67.akam.net` ⚠️ Not in parent delegation
	NS	`a24-64.akam.net`
	NS	`a26-65.akam.net` ⚠️ Not in zone NS records
	NS	`a7-66.akam.net` ⚠️ Not in parent delegation
	NS	`a8-66.akam.net` ⚠️ Not in zone NS records
	NS	`a9-66.akam.net` ⚠️ Not in parent delegation
	NS	`a9-67.akam.net` ⚠️ Not in zone NS records
	MX	`us-smtp-inbound-1.mimecast.com` ⭐
	MX	`us-smtp-inbound-2.mimecast.com` ⭐
	TXT	`d+KwrMsuiYaHmSsnhrKFxbXoIU3kTRfJDt0M9YFs5wZl9Laidl0bba2ETVT3IizQFX1H5wkX8x3QC...`
	TXT	`docker-verification=e2a4d858-9744-4422-be23-a5b603b7e2de`
	TXT	`h1-domain-verification=2rUfV6GURqrd473467gk3uWkiuVEpcfZBxtwFCZHyAbkfxP5`
	TXT	`kgej9AWMUerpL+WGSyI2hN7b4FFcagAzRZvoHfCOMvhG+W+xaff9Smsq7vbPBdDoBh+hiWzkkBSVl...`
	TXT	`logmein-verification-code=068f4cd3-ee6d-4546-b163-777e0b540571`
	TXT	`atlassian-domain-verification=8W72YZrigWSkrAXgYFb9cvpSo8ydO+mOsn4eGqOaBQvF3db...`
	TXT	`CRu0do5v6lYoBQ/nLTsyB2MuSP9fnIzhFmpfJqmjJGNngkOR6QScH2mx4y+joM/S9Up5lFJRFnXMH...`
	TXT	`slack-domain-verification=FUsmkusgwkLtI9MpPclkPJpnWvZeR55LRExH2Aae`
	TXT	`ZOOM_verify_6txb0CpTQ16fLBlTpAC9dQ`
	TXT	`MS=ms61951141`
	TXT	`v=spf1 mx ip4:72.165.61.134/31 ip4:216.207.205.96/28 ip4:208.64.203.142/31 ip...`
	SOA	`a1-164.akam.net`admin@valvesoftware.com 2025-07-13 #34

WOT: SAFE (95/100)
rank #5240 globally
rank #2618 in the tld
WOT: SAFE (95/100)
📈 Tranco rank: #17,135

Same first word

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source.media

source.co.nz

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source.co.uk

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Similar names

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course.ltd

crusoe.dk

coeurs.lu

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rucose.com

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crouse.co.za

course.net

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cueros.es

crouse.cloud

serocu.org.uk

esourc.org

course.by

suorec.com.cn

ruesco.com

securo.in

course.com

course.network

DNS History

51 records (1 active, 50 former)

○A104.101.166.2142016-06-15 → 2016-06-15 · 4 obs

○ 2016-05-11 14:26:44
● 2016-06-15 13:44:20
○ 2016-06-26 16:35:36
○ 2026-04-12 09:37:42

○A104.105.75.1862016-03-15 → 2016-03-15 · 4 obs

○ 2016-03-13 05:34:00
● 2016-03-15 12:28:00
○ 2016-03-21 05:25:46
○ 2026-04-12 09:37:42

○A104.105.88.1492016-04-30 → 2016-04-30 · 4 obs

○ 2016-04-16 22:42:22
● 2016-04-30 11:26:56
○ 2016-05-11 14:26:44
○ 2026-04-12 09:37:42

○A104.125.192.2292017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A104.126.21.292017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A104.70.62.2342015-11-24 → 2015-11-24 · 4 obs

○ 2015-11-17 20:39:32
● 2015-11-24 01:27:56
○ 2016-01-15 18:57:56
○ 2026-04-12 09:37:42

○A104.71.138.1492017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A104.74.44.382015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A104.78.8.2412017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A104.80.124.802017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A104.81.11.442017-02-17 → 2017-02-17 · 4 obs

○ 2017-02-12 07:25:58
● 2017-02-17 19:55:36
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A104.85.171.182017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A104.90.76.142015-11-17 → 2015-11-17 · 4 obs

○ 2015-11-14 13:15:18
● 2015-11-17 20:39:32
○ 2015-11-24 01:27:56
○ 2026-04-12 09:37:42

○A104.90.97.1262016-06-26 → 2016-06-26 · 4 obs

○ 2016-06-15 13:44:20
● 2016-06-26 16:35:36
○ 2016-07-15 18:46:08
○ 2026-04-12 09:37:42

○A104.93.192.1242016-09-03 → 2016-09-03 · 4 obs

○ 2016-07-18 01:16:54
● 2016-09-03 20:43:34
○ 2016-12-23 17:18:30
○ 2026-04-12 09:37:42

○A104.94.192.1672016-03-13 → 2016-03-13 · 4 obs

○ 2016-03-04 22:29:56
● 2016-03-13 05:34:00
○ 2016-03-15 12:28:00
○ 2026-04-12 09:37:42

○A104.95.227.2202017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A104.95.59.1672017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A122.252.43.2352017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A125.252.219.2352015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A125.56.227.1802017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A172.231.59.702016-02-13 → 2016-02-13 · 4 obs

○ 2016-01-26 17:52:54
● 2016-02-13 03:34:44
○ 2016-02-14 12:08:16
○ 2026-04-12 09:37:42

○A172.232.102.2522016-02-14 → 2016-02-14 · 4 obs

○ 2016-02-13 03:34:44
● 2016-02-14 12:08:16
○ 2016-02-26 17:43:24
○ 2026-04-12 09:37:42

○A172.232.82.132015-11-14 → 2015-11-14 · 4 obs

○ 2015-11-11 01:17:50
● 2015-11-14 13:15:18
○ 2015-11-17 20:39:32
○ 2026-04-12 09:37:42

○A173.222.193.1632017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A184.26.133.2022015-10-29 → 2015-10-29 · 4 obs

○ 2015-08-13 11:41:10
● 2015-10-29 04:11:12
○ 2015-11-02 01:12:42
○ 2026-04-12 09:37:42

○A184.51.194.172015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A184.84.128.1922015-11-02 → 2015-11-03 · 5 obs

○ 2015-10-29 04:11:12
● 2015-11-02 01:12:42
● 2015-11-03 01:34:10
○ 2015-11-11 01:17:50
○ 2026-04-12 09:37:42

○A184.85.133.1092015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A184.86.180.662015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A184.86.71.1612016-07-18 → 2016-07-18 · 4 obs

○ 2016-07-15 18:46:08
● 2016-07-18 01:16:54
○ 2016-09-03 20:43:34
○ 2026-04-12 09:37:42

○A2.19.147.222016-05-11 → 2016-05-11 · 4 obs

○ 2016-04-30 11:26:56
● 2016-05-11 14:26:44
○ 2016-06-15 13:44:20
○ 2026-04-12 09:37:42

○A23.1.195.1612015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A23.1.196.902015-11-11 → 2015-11-11 · 4 obs

○ 2015-11-03 01:34:10
● 2015-11-11 01:17:50
○ 2015-11-14 13:15:18
○ 2026-04-12 09:37:42

○A23.10.179.1782016-04-16 → 2016-04-16 · 4 obs

○ 2016-03-25 23:26:36
● 2016-04-16 22:42:22
○ 2016-04-30 11:26:56
○ 2026-04-12 09:37:42

○A23.14.222.652017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A23.192.103.322016-03-04 → 2016-03-04 · 4 obs

○ 2016-02-26 17:43:24
● 2016-03-04 22:29:56
○ 2016-03-13 05:34:00
○ 2026-04-12 09:37:42

○A23.198.156.512015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A23.200.103.2032017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A23.210.223.2112016-12-23 → 2017-01-18 · 5 obs

○ 2016-09-03 20:43:34
● 2016-12-23 17:18:30
● 2017-01-18 22:42:26
○ 2017-02-12 07:25:58
○ 2026-04-12 09:37:42

○A23.220.195.1672017-08-05 → 2017-08-05 · 4 obs

○ 2017-02-17 19:55:36
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A23.220.51.1952016-01-15 → 2016-02-26 · 8 obs

○ 2015-11-24 01:27:56
● 2016-01-15 18:57:56
● 2016-01-26 17:52:54
○ 2016-02-13 03:34:44
○ 2016-02-14 12:08:16
● 2016-02-26 17:43:24
○ 2016-03-04 22:29:56
○ 2026-04-12 09:37:42

○A23.220.56.1972017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-02-17 19:55:36
○ 2026-04-12 09:37:42

○A23.38.159.1282017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A23.50.91.1682017-02-12 → 2017-02-12 · 4 obs

○ 2017-01-18 22:42:26
● 2017-02-12 07:25:58
○ 2017-08-05 18:51:54
○ 2026-04-12 09:37:42

○A23.52.98.772016-07-15 → 2016-07-15 · 4 obs

○ 2016-06-26 16:35:36
● 2016-07-15 18:46:08
○ 2016-07-18 01:16:54
○ 2026-04-12 09:37:42

○A23.56.115.2352015-08-13 → 2017-08-05 · 5 obs

● 2015-08-13 11:41:10
○ 2017-02-12 07:25:58
● 2017-08-05 18:51:54
○ 2017-09-26 14:23:56
○ 2026-04-12 09:37:42

○A23.67.86.1792016-03-25 → 2016-03-25 · 4 obs

○ 2016-03-21 05:25:46
● 2016-03-25 23:26:36
○ 2016-04-16 22:42:22
○ 2026-04-12 09:37:42

○A69.192.47.2262016-03-21 → 2016-03-21 · 4 obs

○ 2016-03-15 12:28:00
● 2016-03-21 05:25:46
○ 2016-03-25 23:26:36
○ 2026-04-12 09:37:42

○A96.16.160.522015-08-13 → 2015-08-13 · 3 obs

● 2015-08-13 11:41:10
○ 2015-10-29 04:11:12
○ 2026-04-12 09:37:42

●CNAMEdeveloper.valvesoftware.com2017-09-26 → 2026-04-12 · 2 obs

● 2017-09-26 14:23:56
● 2026-04-12 09:37:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net...	-
valvesoftware.com	a9-67.akam.net, a11-67.akam.net, a24-64.akam.net, a1-164.akam.net...	-

✅ Authoritative Response

Server:84.53.139.67

NS records: a9-67.akam.net, a11-67.akam.net, a24-64.akam.net, a1-164.akam.net, a26-65.akam.net, a8-66.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for valvesoftware.com (unsigned zone)

⏱️ Timing

Total: 594ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`developer.valvesoftware.com`

Analysis

IP Addresses

source.valvesoftware.com resolves to four IPs: 2600:1408:a:22::212:435b, 2600:1408:a:22::212:435e, 2.18.67.91 and 2.18.67.94.

Other host names such as a1763.w7.akamai.net, a1262.dscq.akamai.net, wcfia.harvard.edu, alinapayne.com and a920.g1.akamai.net.0.1.cn.akamaitech.net share IP numbers with source.valvesoftware.com.

Mail Servers

source.valvesoftware.com is handled by two mail servers: mxa.mailgun.org and mxb.mailgun.org.

source.valvesoftware.com uses the same mail server setup as other domains, for instance mail.cservaustin.com, pamotto.com, davesofthunder.com, mail.ecourier.com.bd and breinermedia.com.

source.valvesoftware.com shares at least some mail servers with other domains, for example spennare.com, customessaymeister.com, overseer.org.nz, a-n-e.com and dotservice.com.

Host names sharing a single IP: mxa.mailgun.org and mxb.mailgun.org point to 34.160.63.108.

source.valvesoftware.com - robtex.com