`login.classlink.com`

DNSSEC	⚠️ Not signed
A	18.239.183.31^{🇺🇸 Amazon18.239.176.0/21}
		PTR	`server-18-239-183-31.bos50.r.cloudfront.net`
A	18.239.183.32^{🇺🇸 Amazon18.239.176.0/21}
A	18.239.183.122^{🇺🇸 Amazon18.239.176.0/21}
A	18.239.183.123^{🇺🇸 Amazon18.239.176.0/21}

`classlink.com`

	DNSSEC	⚠️ Not signed
	A	198.202.211.1^{🇺🇸 CLOUDFLARESPECTRUM198.202.211.0/24 Webflow}
	NS	`ns-261.awsdns-32.com` ⭐
	NS	`ns-1522.awsdns-62.org`
	NS	`ns-2026.awsdns-61.co.uk`
	NS	`ns-828.awsdns-39.net`
	MX	`classlink-com.mail.protection.outlook.com` ⭐
	TXT	`4qr0lkf6uog34p5a1046dm0tvu`
	TXT	`5je1dbqftgftqf2sapptb20988`
	TXT	`9vu5elj96pu6pob1ecp4j5c5dd`
	TXT	`Foxit-domain-verification=61cb92e4e7446ae2c9505ca5a853b955`
	TXT	`anthropic-domain-verification-xjj7xz=iR7ykRURIR8m1TufjvHBSTscf`
	TXT	`apple-domain-verification=YkDFx5z01YEISXVD`
	TXT	`atlassian-domain-verification=Umlva1cUR4QjS03+6saVBhzTV4/ulItYeC+NDmsly/D9Jzc...`
	TXT	`google-site-verification=6rOpTcmbg9b4Cft2EHJWjRuWQJulhd0NmWpjFTaNBUw`
	TXT	`google-site-verification=zwbqDXH-crJlGAYdIYG5fl9FdRzglZHal9MYPeR_klM`
	TXT	`linear-domain-verification=c5ruhesasc9j`
	TXT	`logmein-verification-code=ce6036fe-d2c1-4676-980a-953230408dae`
	TXT	`openai-domain-verification=dv-ed2walzHKaS2my4YbufodW2X`
	TXT	`p344lhnhr36vrk6csonrdjkmc1`
	TXT	`qbovvtand4i23tcrc8nuptig5g`
	TXT	`status-page-domain-verification=rczds3yf1nz9`
	TXT	`v=spf1 include:aspmx.pardot.com include:stspg-customer.com include:sendgrid.n...`
	SOA	`ns-261.awsdns-32.com`awsdns-hostmaster@amazon.com serial=1

rank #53728 globally
rank #23712 in the tld
📈 Tranco rank: #928

ClassLink

ClassLink is a leading provider of identity and access management (IAM) solutions designed specifically for the education sector. Headquartered in Clifton, New Jersey, the company serves over 25 million students and staff across 3,000+ school systems in 50 U.S. states and 42 countries.

Services & Products

LaunchPad — Single sign-on (SSO) platform with access to 6,000+ educational apps
OneSync — Automated account provisioning and identity management
Roster Server — Secure roster data sharing using open standards
Analytics & Analytics+ — EdTech usage tracking, equitable access metrics, and ROI measurement
Security Suite — Multi-Factor Authentication (MFA), DataGuard, Audit Center, and ThreatScan

Infrastructure

DNS hosted on Amazon Route 53 (awsdns nameservers)
Web fronted by Cloudflare Spectrum (198.202.211.1)
Email routed through Microsoft 365 (classlink-com.mail.protection.outlook.com)
DNSSEC not enabled

ClassLink won the 2025 CODiE Award for Best Administrative Solution. Their mission centers on "identity-first schools" where secure identity management enables safer, faster, and more efficient educational operations.

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DNS History

28 records (4 active, 24 former)

○A13.227.107.102026-04-20 → 2026-04-29 · 19 obs

○ 2026-04-15 21:42:26
● 2026-04-20 14:02:10
○ 2026-04-20 20:14:48
○ 2026-04-21 00:18:34
● 2026-04-21 19:02:58
● 2026-04-21 19:53:40
○ 2026-04-21 23:09:30
○ 2026-04-23 18:31:24
● 2026-04-24 09:22:36
● 2026-04-24 12:29:00
○ 2026-04-24 23:11:52
○ 2026-04-26 08:12:36
● 2026-04-26 16:46:32
○ 2026-04-26 18:19:36
○ 2026-04-28 07:26:54
● 2026-04-29 06:18:24
● 2026-04-29 08:04:48
○ 2026-04-29 14:16:46
○ 2026-04-30 21:57:22

○A13.227.107.502026-04-20 → 2026-04-29 · 19 obs

○A13.227.107.802026-04-20 → 2026-04-29 · 19 obs

○A13.227.107.932026-04-20 → 2026-04-29 · 19 obs

○A13.227.110.172026-04-29 → 2026-04-30 · 6 obs

○ 2026-04-29 14:16:46
● 2026-04-29 18:56:18
○ 2026-04-30 00:30:18
● 2026-04-30 01:28:22
○ 2026-04-30 05:46:54
○ 2026-04-30 21:57:22

○A13.227.110.272026-04-29 → 2026-04-30 · 6 obs

○ 2026-04-29 14:16:46
● 2026-04-29 18:56:18
○ 2026-04-30 00:30:18
● 2026-04-30 01:28:22
○ 2026-04-30 05:46:54
○ 2026-04-30 21:57:22

○A13.227.110.572026-04-29 → 2026-04-30 · 6 obs

○ 2026-04-29 14:16:46
● 2026-04-29 18:56:18
○ 2026-04-30 00:30:18
● 2026-04-30 01:28:22
○ 2026-04-30 05:46:54
○ 2026-04-30 21:57:22

○A13.227.110.632026-04-29 → 2026-04-30 · 6 obs

○ 2026-04-29 14:16:46
● 2026-04-29 18:56:18
○ 2026-04-30 00:30:18
● 2026-04-30 01:28:22
○ 2026-04-30 05:46:54
○ 2026-04-30 21:57:22

●A18.239.183.1222026-04-20 → 2026-04-30 · 18 obs

○ 2026-04-20 14:02:10
● 2026-04-20 20:14:48
○ 2026-04-20 20:52:28
○ 2026-04-21 19:53:40
● 2026-04-21 23:09:30
○ 2026-04-22 04:25:38
○ 2026-04-24 12:29:00
● 2026-04-24 23:11:52
○ 2026-04-24 23:51:00
○ 2026-04-26 16:46:32
● 2026-04-26 18:19:36
● 2026-04-26 18:56:18
○ 2026-04-26 21:56:32
○ 2026-04-29 18:56:18
● 2026-04-30 00:30:18
○ 2026-04-30 01:28:22
○ 2026-04-30 21:09:10
● 2026-04-30 21:57:22

●A18.239.183.1232026-04-20 → 2026-04-30 · 18 obs

●A18.239.183.312026-04-20 → 2026-04-30 · 18 obs

●A18.239.183.322026-04-20 → 2026-04-30 · 18 obs

○A216.137.53.1182026-02-26 → 2026-04-30 · 54 obs

○ 2026-02-26 13:31:50
● 2026-02-26 20:57:52
○ 2026-03-01 00:06:50
○ 2026-03-01 05:16:26
● 2026-03-01 15:57:18
○ 2026-03-02 21:32:50
○ 2026-03-03 08:06:26
● 2026-03-04 01:34:56
○ 2026-03-04 23:28:34
● 2026-03-05 02:11:42
● 2026-03-08 16:52:02
○ 2026-03-10 01:57:48
● 2026-03-10 03:09:50
○ 2026-03-10 04:27:12
○ 2026-03-10 16:45:18
● 2026-03-11 02:18:06
● 2026-03-14 08:52:18
○ 2026-03-14 16:41:26
● 2026-03-15 10:18:20
● 2026-03-15 15:08:20
○ 2026-03-15 19:21:20
○ 2026-03-15 21:22:14
● 2026-03-16 01:51:50
○ 2026-03-17 19:54:56
● 2026-03-18 03:52:16
● 2026-03-22 17:40:08
○ 2026-03-23 09:04:00
○ 2026-03-24 16:09:40
● 2026-03-24 19:22:02
● 2026-04-15 21:42:26
○ 2026-04-20 14:02:10
○ 2026-04-20 20:14:48
● 2026-04-20 20:52:28
● 2026-04-21 00:18:34
○ 2026-04-21 19:02:58
○ 2026-04-21 23:09:30
● 2026-04-22 04:25:38
● 2026-04-23 18:31:24
○ 2026-04-24 09:22:36
○ 2026-04-24 23:11:52
● 2026-04-24 23:51:00
● 2026-04-26 08:12:36
○ 2026-04-26 16:46:32
○ 2026-04-26 18:56:18
● 2026-04-26 21:56:32
● 2026-04-28 07:26:54
○ 2026-04-29 06:18:24
○ 2026-04-29 08:04:48
● 2026-04-29 14:16:46
○ 2026-04-29 18:56:18
○ 2026-04-30 01:28:22
● 2026-04-30 05:46:54
● 2026-04-30 21:09:10
○ 2026-04-30 21:57:22

○A216.137.53.1252026-02-26 → 2026-04-30 · 54 obs

○A216.137.53.262026-02-26 → 2026-04-30 · 54 obs

○A216.137.53.442026-02-26 → 2026-04-30 · 54 obs

○A3.164.206.1252026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 17:40:08
● 2026-03-23 09:04:00
○ 2026-03-23 21:02:52
○ 2026-04-30 21:57:22

○A3.164.206.172026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 17:40:08
● 2026-03-23 09:04:00
○ 2026-03-23 21:02:52
○ 2026-04-30 21:57:22

○A3.164.206.532026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 17:40:08
● 2026-03-23 09:04:00
○ 2026-03-23 21:02:52
○ 2026-04-30 21:57:22

○A3.164.206.702026-03-23 → 2026-03-23 · 4 obs

○ 2026-03-22 17:40:08
● 2026-03-23 09:04:00
○ 2026-03-23 21:02:52
○ 2026-04-30 21:57:22

○A3.167.112.1002026-03-01 → 2026-03-24 · 12 obs

○ 2026-02-26 20:57:52
● 2026-03-01 00:06:50
● 2026-03-01 05:16:26
○ 2026-03-01 15:57:18
○ 2026-03-14 08:52:18
● 2026-03-14 16:41:26
○ 2026-03-15 10:18:20
○ 2026-03-23 09:04:00
● 2026-03-23 21:02:52
● 2026-03-24 16:09:40
○ 2026-03-24 19:22:02
○ 2026-04-30 21:57:22

○A3.167.112.1052026-03-01 → 2026-03-24 · 12 obs

○A3.167.112.492026-03-01 → 2026-03-24 · 12 obs

○A3.167.112.972026-03-01 → 2026-03-24 · 12 obs

○A52.222.244.1032026-02-26 → 2026-03-17 · 21 obs

● 2026-02-26 13:31:50
○ 2026-02-26 20:57:52
○ 2026-03-01 15:57:18
● 2026-03-02 21:32:50
● 2026-03-03 08:06:26
○ 2026-03-04 01:34:56
● 2026-03-04 23:28:34
○ 2026-03-05 02:11:42
○ 2026-03-08 16:52:02
● 2026-03-10 01:57:48
○ 2026-03-10 03:09:50
● 2026-03-10 04:27:12
● 2026-03-10 16:45:18
○ 2026-03-11 02:18:06
○ 2026-03-15 15:08:20
● 2026-03-15 19:21:20
● 2026-03-15 21:22:14
○ 2026-03-16 01:51:50
● 2026-03-17 19:54:56
○ 2026-03-18 03:52:16
○ 2026-04-30 21:57:22

○A52.222.244.532026-02-26 → 2026-03-17 · 21 obs

○A52.222.244.592026-02-26 → 2026-03-17 · 21 obs

○A52.222.244.682026-02-26 → 2026-03-17 · 21 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
classlink.com	ns-261.awsdns-32.com, ns-828.awsdns-39.net, ns-2026.awsdns-61.co.uk, ns-1522.awsdns-62.org	2 records

✅ Authoritative Response

Server:205.251.199.234

NS records: ns-261.awsdns-32.com, ns-828.awsdns-39.net, ns-2026.awsdns-61.co.uk, ns-1522.awsdns-62.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classlink.com (unsigned zone)

⏱️ Timing

Total: 412ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`18.239.183.31, 18.239.183.32...`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-261.awsdns-32.com, ns-261.awsdns-32.com)

Analysis

IP Addresses

login.classlink.com maps to four IP numbers: 18.239.183.31, 18.239.183.32, 18.239.183.122 and 18.239.183.123.

Other host names, for instance pss.ninja, nersionitsumpute.com, la7a.link, d1tox80f7m6vzs.cloudfront.net and d2a3kbigu7s04y.cloudfront.net share IP numbers with login.classlink.com.

login.classlink.com - robtex.com