`careers.classmethod.jp`

DNSSEC	⚠️ Not signed
A	3.170.3.38^{🇺🇸 Amazon3.170.3.0/24}
		PTR	`server-3-170-3-38.iad55.r.cloudfront.net`
A	3.170.3.42^{🇺🇸 Amazon3.170.3.0/24}
A	3.170.3.77^{🇺🇸 Amazon3.170.3.0/24}
A	3.170.3.127^{🇺🇸 Amazon3.170.3.0/24}

`classmethod.jp`

	DNSSEC	⚠️ Not signed
	A	2600:9000:20ea:600:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	2600:9000:20ea:1000:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	2600:9000:20ea:2c00:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	2600:9000:20ea:6600:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	2600:9000:20ea:7800:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	2600:9000:20ea:8c00:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	2600:9000:20ea:9a00:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	2600:9000:20ea:f600:1a:2fc4:3800:93a1^{🇺🇸 Amazon2600:9000:20ea::/48 - CloudFront}
	A	13.35.78.28^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
	A	13.35.78.108^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
	A	13.35.78.117^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
	A	13.35.78.129^{🇺🇸 Amazon13.35.78.0/23 -Cloudfront}
	NS	`ns-266.awsdns-33.com` ⭐
	NS	`ns-1421.awsdns-49.org`
	NS	`ns-1722.awsdns-23.co.uk`
	NS	`ns-576.awsdns-08.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁷⁰⁾
	MX	`alt2.aspmx.l.google.com`⁽⁷⁰⁾
	MX	`aspmx2.googlemail.com`⁽⁸⁰⁾
	MX	`aspmx3.googlemail.com`⁽⁸⁰⁾
	MX	`aspmx4.googlemail.com`⁽⁸⁰⁾
	MX	`aspmx5.googlemail.com`⁽⁸⁰⁾
	TXT	`015591260915`
	TXT	`MS=0D67295996F001EE1F39064E6AF3DCBF7F137245`
	TXT	`MS=ms34603984`
	TXT	`Notion_verify_EDvvYdmr0azGBPCUaFs7L8JM3Coc9dwmnyim4WqKXjAvG0ifvE1njcpJexu5k44...`
	TXT	`cursor-domain-verification-cswv2a=6ZbpJnYSMVbUqjae5zGOk3Uro`
	TXT	`google-site-verification=Al5XjKaWGVE8ySCHESnbjJ8yOrk20-CDNSTkAAwJDc0`
	TXT	`openai-domain-verification=dv-Byu4bw523cmMy9qoKEWZVJs0`
	TXT	`v=spf1 include:_spf.google.com include:_spf.activegate-ss.jp include:amazonse...`
	TXT	`zapier-domain-verification-challenge=223d408a-4cb0-4964-a606-e0ab35fc001d`
	SOA	`ns-266.awsdns-33.com`awsdns-hostmaster@amazon.com serial=1

rank #46636 globally
rank #864 in the tld
📈 Tranco rank: #125,382

Same first word

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researc.com

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escarre.com

DNS History

16 records (4 active, 12 former)

○A3.169.252.1062026-02-15 → 2026-03-21 · 47 obs

● 2026-02-15 19:11:22
● 2026-02-16 00:08:46
○ 2026-02-18 00:38:14
○ 2026-02-19 21:22:24
● 2026-02-20 07:02:02
○ 2026-02-20 11:31:22
○ 2026-03-02 07:21:24
● 2026-03-02 18:55:24
● 2026-03-03 09:38:50
○ 2026-03-03 18:17:34
○ 2026-03-05 07:03:18
● 2026-03-05 21:25:30
○ 2026-03-06 03:40:22
○ 2026-03-08 11:09:12
● 2026-03-08 14:17:34
● 2026-03-09 13:30:42
○ 2026-03-09 14:16:08
● 2026-03-09 15:43:04
● 2026-03-09 22:56:34
○ 2026-03-10 18:03:50
○ 2026-03-13 18:21:26
● 2026-03-14 00:26:54
○ 2026-03-14 02:19:34
○ 2026-03-14 02:56:44
● 2026-03-14 05:50:00
○ 2026-03-14 07:09:18
○ 2026-03-14 18:11:06
● 2026-03-14 20:42:02
○ 2026-03-15 03:05:08
● 2026-03-15 03:45:28
○ 2026-03-15 07:49:36
○ 2026-03-17 05:40:34
● 2026-03-17 06:14:38
○ 2026-03-17 12:47:44
● 2026-03-17 16:30:52
○ 2026-03-17 22:37:40
○ 2026-03-19 05:19:46
● 2026-03-19 13:13:50
○ 2026-03-19 14:28:02
○ 2026-03-20 10:42:56
● 2026-03-20 19:50:34
○ 2026-03-20 21:14:32
○ 2026-03-21 02:54:16
● 2026-03-21 11:24:38
● 2026-03-21 16:36:20
○ 2026-03-21 23:29:32
○ 2026-03-22 10:32:04

○A3.169.252.462026-02-15 → 2026-03-21 · 47 obs

○A3.169.252.632026-02-15 → 2026-03-21 · 47 obs

○A3.169.252.982026-02-15 → 2026-03-21 · 47 obs

●A3.170.3.1272026-02-19 → 2026-03-22 · 31 obs

○ 2026-02-19 10:47:22
● 2026-02-19 19:27:42
○ 2026-02-19 21:22:24
○ 2026-02-20 07:02:02
● 2026-02-20 11:31:22
○ 2026-02-20 21:12:36
● 2026-02-21 09:16:28
○ 2026-02-22 12:17:24
○ 2026-02-28 04:05:46
● 2026-02-28 21:22:08
● 2026-03-02 07:21:24
○ 2026-03-02 18:55:24
○ 2026-03-03 18:17:34
● 2026-03-04 12:02:12
● 2026-03-04 14:01:46
○ 2026-03-05 07:03:18
○ 2026-03-12 02:02:32
● 2026-03-12 07:04:38
○ 2026-03-12 20:06:56
○ 2026-03-18 03:13:36
● 2026-03-18 07:24:26
○ 2026-03-18 13:52:18
○ 2026-03-19 13:13:50
● 2026-03-19 14:28:02
○ 2026-03-19 21:22:40
○ 2026-03-20 21:14:32
● 2026-03-21 02:00:58
○ 2026-03-21 02:54:16
○ 2026-03-21 23:29:32
● 2026-03-22 01:20:48
● 2026-03-22 10:32:04

●A3.170.3.382026-02-19 → 2026-03-22 · 31 obs

●A3.170.3.422026-02-19 → 2026-03-22 · 31 obs

●A3.170.3.772026-02-19 → 2026-03-22 · 31 obs

○A52.222.177.102026-02-18 → 2026-03-21 · 68 obs

○ 2026-02-16 00:08:46
● 2026-02-18 00:38:14
● 2026-02-19 10:47:22
○ 2026-02-19 19:27:42
● 2026-02-19 21:22:24
○ 2026-02-20 07:02:02
○ 2026-02-20 11:31:22
● 2026-02-20 21:12:36
○ 2026-02-21 09:16:28
● 2026-02-22 12:17:24
● 2026-02-28 04:05:46
○ 2026-02-28 21:22:08
○ 2026-03-03 09:38:50
● 2026-03-03 18:17:34
○ 2026-03-04 12:02:12
○ 2026-03-04 14:01:46
● 2026-03-05 07:03:18
○ 2026-03-05 21:25:30
● 2026-03-06 03:40:22
● 2026-03-07 14:46:20
○ 2026-03-07 22:15:56
● 2026-03-08 05:16:58
● 2026-03-08 06:10:22
○ 2026-03-08 10:12:48
● 2026-03-08 11:09:12
○ 2026-03-08 14:17:34
○ 2026-03-09 13:30:42
● 2026-03-09 14:16:08
○ 2026-03-09 15:43:04
○ 2026-03-09 22:56:34
● 2026-03-10 18:03:50
● 2026-03-12 02:02:32
○ 2026-03-12 07:04:38
● 2026-03-12 20:06:56
● 2026-03-13 11:05:26
○ 2026-03-13 18:21:26
○ 2026-03-14 00:26:54
● 2026-03-14 02:19:34
● 2026-03-14 02:56:44
○ 2026-03-14 05:50:00
● 2026-03-14 07:09:18
● 2026-03-14 18:11:06
○ 2026-03-14 20:42:02
● 2026-03-15 03:05:08
○ 2026-03-15 03:45:28
● 2026-03-15 07:49:36
● 2026-03-17 05:40:34
○ 2026-03-17 06:14:38
● 2026-03-17 12:47:44
○ 2026-03-17 16:30:52
● 2026-03-17 22:37:40
● 2026-03-18 03:13:36
○ 2026-03-18 07:24:26
● 2026-03-18 13:52:18
● 2026-03-19 05:19:46
○ 2026-03-19 13:13:50
○ 2026-03-19 14:28:02
● 2026-03-19 21:22:40
● 2026-03-20 10:42:56
○ 2026-03-20 19:50:34
● 2026-03-20 21:14:32
○ 2026-03-21 02:00:58
● 2026-03-21 02:54:16
○ 2026-03-21 11:24:38
○ 2026-03-21 16:36:20
● 2026-03-21 23:29:32
○ 2026-03-22 01:20:48
○ 2026-03-22 10:32:04

○A52.222.177.242026-02-18 → 2026-03-21 · 68 obs

○A52.222.177.392026-02-18 → 2026-03-21 · 68 obs

○A52.222.177.782026-02-18 → 2026-03-21 · 68 obs

○A52.85.31.162026-03-07 → 2026-03-13 · 10 obs

○ 2026-03-07 14:46:20
● 2026-03-07 22:15:56
○ 2026-03-08 05:16:58
○ 2026-03-08 06:10:22
● 2026-03-08 10:12:48
○ 2026-03-08 11:09:12
○ 2026-03-13 11:05:26
● 2026-03-13 18:21:26
○ 2026-03-14 00:26:54
○ 2026-03-22 10:32:04

○A52.85.31.562026-03-07 → 2026-03-13 · 10 obs

○A52.85.31.712026-03-07 → 2026-03-13 · 10 obs

○A52.85.31.922026-03-07 → 2026-03-13 · 10 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
classmethod.jp	ns-266.awsdns-33.com, ns-576.awsdns-08.net, ns-1421.awsdns-49.org, ns-1722.awsdns-23.co.uk	-

✅ Authoritative Response

Server: 205.251.197.141

NS records: ns-266.awsdns-33.com, ns-576.awsdns-08.net, ns-1421.awsdns-49.org, ns-1722.awsdns-23.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classmethod.jp (unsigned zone)

⏱️ Timing

Total: 1330ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.170.3.42, 3.170.3.38...`

Analysis

IP Addresses

careers.classmethod.jp maps to four IP numbers: 3.170.3.38, 3.170.3.42, 3.170.3.77 and 3.170.3.127.

other host names include assets.soom.la, cf-india-app2-1a.ticketsimply.net, worldsolarchallenge.tv, f-itpediahub-com.msgfocus.com and charitybo.com; they share IP numbers with careers.classmethod.jp.

careers.classmethod.jp - robtex.com