bootstrap-4-react.com - dns.ninja

`bootstrap-4-react.com`

DNSSEC	⚠️ Not signed
A	3.171.76.28^{🇺🇸 Amazon3.171.76.0/23}
		PTR	`server-3-171-76-28.iad89.r.cloudfront.net`
A	3.171.76.40^{🇺🇸 Amazon3.171.76.0/23}
A	3.171.76.73^{🇺🇸 Amazon3.171.76.0/23}
A	3.171.76.88^{🇺🇸 Amazon3.171.76.0/23}
NS	`ns-1197.awsdns-21.org` ⭐
		A	2600:9000:5304:ad00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1197.awsdns-21.org`
		A	205.251.196.173^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1197.awsdns-21.org`
NS	`ns-1898.awsdns-45.co.uk`
		A	2600:9000:5307:6a00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1898.awsdns-45.co.uk`
		A	205.251.199.106^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1898.awsdns-45.co.uk`
NS	`ns-355.awsdns-44.com`
		A	2600:9000:5301:6300::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-355.awsdns-44.com`
		A	205.251.193.99^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-355.awsdns-44.com`
NS	`ns-899.awsdns-48.net`
		A	2600:9000:5303:8300::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-899.awsdns-48.net`
		A	205.251.195.131^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-899.awsdns-48.net`
SOA	`ns-1197.awsdns-21.org`awsdns-hostmaster@amazon.com serial=1

`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=1786011744

Same first word

bootstrap-4-react.com

DNS History

120 records (8 active, 112 former)

●NSns-1197.awsdns-21.org2018-08-30 → 2026-08-06 · 2 obs

● 2018-08-30 05:26:52
● 2026-08-06 10:24:54

●NSns-1898.awsdns-45.co.uk2018-08-30 → 2026-08-06 · 2 obs

● 2018-08-30 05:26:52
● 2026-08-06 10:24:54

●NSns-355.awsdns-44.com2018-08-30 → 2026-08-06 · 2 obs

● 2018-08-30 05:26:52
● 2026-08-06 10:24:54

●NSns-899.awsdns-48.net2018-08-30 → 2026-08-06 · 2 obs

● 2018-08-30 05:26:52
● 2026-08-06 10:24:54

○A13.226.144.1022026-02-18 → 2026-06-30 · 18 obs

○ 2026-02-18 16:08:22
● 2026-02-18 23:07:56
● 2026-02-20 11:25:04
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○ 2026-08-06 10:24:54

○A13.226.144.1102026-02-18 → 2026-06-30 · 18 obs

○A13.226.144.1152026-02-18 → 2026-06-30 · 18 obs

○A13.226.144.1232026-02-18 → 2026-06-30 · 18 obs

○A13.32.205.1312018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A13.32.205.1532018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A13.32.205.1692018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A13.32.205.942018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A13.33.129.382026-05-06 → 2026-06-01 · 16 obs

○ 2026-05-06 07:28:36
● 2026-05-06 13:04:04
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○ 2026-08-06 10:24:54

○A13.33.129.602026-05-06 → 2026-06-01 · 16 obs

○A13.33.129.722026-05-06 → 2026-06-01 · 16 obs

○A13.33.129.812026-05-06 → 2026-06-01 · 16 obs

○A13.33.131.1252026-07-03 → 2026-07-27 · 22 obs

○ 2026-07-01 21:51:18
● 2026-07-03 02:34:58
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● 2026-07-13 20:26:14
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○ 2026-08-06 10:24:54

○A13.33.131.32026-07-03 → 2026-07-27 · 22 obs

○A13.33.131.62026-07-03 → 2026-07-27 · 22 obs

○A13.33.131.992026-07-03 → 2026-07-27 · 22 obs

○A13.33.235.1132026-07-11 → 2026-07-16 · 18 obs

○ 2026-07-11 07:57:22
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● 2026-07-16 21:49:42
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○ 2026-08-06 10:24:54

○A13.33.235.402026-07-11 → 2026-07-16 · 18 obs

○A13.33.235.602026-07-11 → 2026-07-16 · 18 obs

○A13.33.235.702026-07-11 → 2026-07-16 · 18 obs

○A13.33.82.1132026-04-22 → 2026-08-02 · 18 obs

○ 2026-04-16 20:43:58
● 2026-04-22 10:12:28
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○A13.33.82.1182026-04-22 → 2026-08-02 · 18 obs

○A13.33.82.1272026-04-22 → 2026-08-02 · 18 obs

○A13.33.82.152026-04-22 → 2026-08-02 · 18 obs

○A13.35.107.1052026-07-13 → 2026-08-02 · 73 obs

○ 2026-07-12 04:33:18
● 2026-07-13 03:14:54
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○A13.35.107.1082026-07-13 → 2026-08-02 · 73 obs

○A13.35.107.142026-07-13 → 2026-08-02 · 73 obs

○A13.35.107.82026-07-13 → 2026-08-02 · 73 obs

○A13.35.8.182018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A13.35.8.522018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A13.35.8.662018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A13.35.8.782018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A18.161.34.1282026-05-11 → 2026-05-20 · 17 obs

○ 2026-05-10 00:31:10
● 2026-05-11 06:14:10
○ 2026-05-11 07:59:46
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● 2026-05-12 08:42:42
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○A18.161.34.492026-05-11 → 2026-05-20 · 17 obs

○A18.161.34.862026-05-11 → 2026-05-20 · 17 obs

○A18.161.34.872026-05-11 → 2026-05-20 · 17 obs

○A18.173.166.1012026-07-27 → 2026-07-27 · 6 obs

○ 2026-07-26 22:41:42
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○A18.173.166.442026-07-27 → 2026-07-27 · 6 obs

○ 2026-07-26 22:41:42
● 2026-07-27 07:33:48
○ 2026-07-27 10:41:42
● 2026-07-27 14:25:46
○ 2026-07-27 16:44:26
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○A18.173.166.582026-07-27 → 2026-07-27 · 6 obs

○ 2026-07-26 22:41:42
● 2026-07-27 07:33:48
○ 2026-07-27 10:41:42
● 2026-07-27 14:25:46
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○A18.173.166.752026-07-27 → 2026-07-27 · 6 obs

○ 2026-07-26 22:41:42
● 2026-07-27 07:33:48
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● 2026-07-27 14:25:46
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○A18.239.183.32026-05-17 → 2026-05-17 · 4 obs

○ 2026-05-17 05:42:16
● 2026-05-17 06:23:52
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○A18.239.183.502026-05-17 → 2026-05-17 · 4 obs

○ 2026-05-17 05:42:16
● 2026-05-17 06:23:52
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○A18.239.183.622026-05-17 → 2026-05-17 · 4 obs

○ 2026-05-17 05:42:16
● 2026-05-17 06:23:52
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○A18.239.183.892026-05-17 → 2026-05-17 · 4 obs

○ 2026-05-17 05:42:16
● 2026-05-17 06:23:52
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○A18.65.25.1042026-07-03 → 2026-07-31 · 42 obs

○ 2026-07-03 16:14:48
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○A18.65.25.342026-07-03 → 2026-07-31 · 42 obs

○A18.65.25.642026-07-03 → 2026-07-31 · 42 obs

○A18.65.25.732026-07-03 → 2026-07-31 · 42 obs

○A3.163.10.282026-03-28 → 2026-08-06 · 52 obs

○ 2026-03-28 09:28:04
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○A3.163.10.482026-03-28 → 2026-08-06 · 52 obs

○A3.163.10.782026-03-28 → 2026-08-06 · 52 obs

○A3.163.10.82026-03-28 → 2026-08-06 · 52 obs

○A3.165.113.1152026-07-25 → 2026-07-25 · 4 obs

○ 2026-07-25 14:58:00
● 2026-07-25 22:09:44
○ 2026-07-26 00:24:12
○ 2026-08-06 10:24:54

○A3.165.113.362026-07-25 → 2026-07-25 · 4 obs

○ 2026-07-25 14:58:00
● 2026-07-25 22:09:44
○ 2026-07-26 00:24:12
○ 2026-08-06 10:24:54

○A3.165.113.832026-07-25 → 2026-07-25 · 4 obs

○ 2026-07-25 14:58:00
● 2026-07-25 22:09:44
○ 2026-07-26 00:24:12
○ 2026-08-06 10:24:54

○A3.165.113.92026-07-25 → 2026-07-25 · 4 obs

○ 2026-07-25 14:58:00
● 2026-07-25 22:09:44
○ 2026-07-26 00:24:12
○ 2026-08-06 10:24:54

○A3.170.152.102026-05-20 → 2026-07-01 · 18 obs

○ 2026-05-20 11:43:14
● 2026-05-20 12:17:54
○ 2026-05-21 01:50:46
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● 2026-05-21 07:42:02
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○ 2026-05-28 21:02:34
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○ 2026-08-06 10:24:54

○A3.170.152.1102026-05-20 → 2026-07-01 · 18 obs

○A3.170.152.342026-05-20 → 2026-07-01 · 18 obs

○A3.170.152.522026-05-20 → 2026-07-01 · 18 obs

●A3.171.76.282026-02-18 → 2026-08-06 · 34 obs

○ 2026-02-17 17:38:08
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●A3.171.76.402026-02-18 → 2026-08-06 · 34 obs

●A3.171.76.732026-02-18 → 2026-08-06 · 34 obs

●A3.171.76.882026-02-18 → 2026-08-06 · 34 obs

○A3.174.29.102026-04-09 → 2026-04-16 · 7 obs

○ 2026-04-04 03:33:02
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○A3.174.29.562026-04-09 → 2026-04-16 · 7 obs

○ 2026-04-04 03:33:02
● 2026-04-09 21:41:36
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○ 2026-04-15 16:55:34
● 2026-04-16 17:50:04
○ 2026-04-16 20:43:58
○ 2026-08-06 10:24:54

○A3.174.29.642026-04-09 → 2026-04-16 · 7 obs

○ 2026-04-04 03:33:02
● 2026-04-09 21:41:36
○ 2026-04-10 00:40:52
○ 2026-04-15 16:55:34
● 2026-04-16 17:50:04
○ 2026-04-16 20:43:58
○ 2026-08-06 10:24:54

○A3.174.29.902026-04-09 → 2026-04-16 · 7 obs

○ 2026-04-04 03:33:02
● 2026-04-09 21:41:36
○ 2026-04-10 00:40:52
○ 2026-04-15 16:55:34
● 2026-04-16 17:50:04
○ 2026-04-16 20:43:58
○ 2026-08-06 10:24:54

○A52.84.20.1052026-02-17 → 2026-08-06 · 28 obs

○ 2018-08-30 05:26:52
● 2026-02-17 17:38:08
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○ 2026-02-18 16:08:22
○ 2026-02-20 11:25:04
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○ 2026-03-28 04:47:34
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● 2026-08-01 01:52:24
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○ 2026-08-06 07:47:16
○ 2026-08-06 10:24:54

○A52.84.20.1082026-02-17 → 2026-08-06 · 28 obs

○A52.84.20.362026-02-17 → 2026-08-06 · 28 obs

○A52.84.20.82026-02-17 → 2026-08-06 · 28 obs

○A52.85.131.1712018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A52.85.131.1742018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
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○A52.85.131.512018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A52.85.131.802018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A52.85.201.1382018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A52.85.201.1392018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A52.85.201.1782018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A52.85.201.942018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.192.11.1602018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.192.11.1842018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.192.11.2332018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.192.11.252018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.192.151.122026-06-03 → 2026-06-04 · 8 obs

○ 2026-06-02 14:26:20
● 2026-06-03 03:40:18
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○ 2026-06-04 04:55:16
● 2026-06-04 09:50:10
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○A54.192.151.1222026-06-03 → 2026-06-04 · 8 obs

○ 2026-06-02 14:26:20
● 2026-06-03 03:40:18
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● 2026-06-04 09:50:10
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○A54.192.151.262026-06-03 → 2026-06-04 · 8 obs

○ 2026-06-02 14:26:20
● 2026-06-03 03:40:18
● 2026-06-03 05:26:00
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○ 2026-06-04 04:55:16
● 2026-06-04 09:50:10
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○A54.192.151.62026-06-03 → 2026-06-04 · 8 obs

○ 2026-06-02 14:26:20
● 2026-06-03 03:40:18
● 2026-06-03 05:26:00
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○A54.230.147.1822018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.147.2062018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.147.2102018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.147.2232018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.173.2252018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.173.702018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.173.902018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.173.992018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.245.1702018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
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○ 2026-08-06 10:24:54

○A54.230.245.1772018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.245.2212018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.245.2412018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.59.202018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.59.2002018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.59.542018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A54.230.59.842018-08-30 → 2018-08-30 · 3 obs

● 2018-08-30 05:26:52
○ 2026-02-17 17:38:08
○ 2026-08-06 10:24:54

○A99.84.160.1222026-03-08 → 2026-03-14 · 12 obs

○ 2026-03-06 03:11:08
● 2026-03-08 10:49:50
○ 2026-03-08 11:46:40
○ 2026-03-13 08:16:54
● 2026-03-14 01:39:12
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● 2026-03-14 11:42:50
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● 2026-03-14 16:20:30
○ 2026-03-14 20:11:58
○ 2026-08-06 10:24:54

○A99.84.160.192026-03-08 → 2026-03-14 · 12 obs

○A99.84.160.362026-03-08 → 2026-03-14 · 12 obs

○A99.84.160.572026-03-08 → 2026-03-14 · 12 obs

○A99.84.237.1032026-04-01 → 2026-07-30 · 32 obs

○ 2026-03-31 14:04:10
● 2026-04-01 16:54:46
○ 2026-04-02 03:39:22
● 2026-06-19 13:55:08
○ 2026-06-19 22:17:10
● 2026-06-20 07:30:32
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● 2026-06-20 23:30:06
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● 2026-06-24 11:50:34
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● 2026-06-25 02:53:56
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● 2026-06-25 14:26:20
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● 2026-06-29 10:50:32
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● 2026-07-28 11:41:36
○ 2026-07-28 16:46:38
● 2026-07-28 20:52:30
○ 2026-07-28 22:01:30
● 2026-07-29 03:46:34
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● 2026-07-29 08:18:40
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● 2026-07-29 19:35:42
○ 2026-07-30 01:36:14
● 2026-07-30 10:29:28
○ 2026-07-30 11:39:46
● 2026-07-30 13:34:02
○ 2026-07-30 14:34:54
○ 2026-08-06 10:24:54

○A99.84.237.172026-04-01 → 2026-07-30 · 32 obs

○A99.84.237.652026-04-01 → 2026-07-30 · 32 obs

○A99.84.237.962026-04-01 → 2026-07-30 · 32 obs

○A99.86.12.1192026-04-27 → 2026-06-10 · 18 obs

○ 2026-04-27 16:55:16
● 2026-04-27 22:08:28
○ 2026-04-28 00:42:08
○ 2026-04-28 06:03:28
● 2026-04-28 07:42:36
● 2026-05-05 23:50:42
○ 2026-05-06 07:28:36
○ 2026-05-16 18:46:36
● 2026-05-17 15:48:20
● 2026-05-18 08:45:12
○ 2026-05-19 03:23:32
○ 2026-06-08 15:04:50
● 2026-06-08 17:18:22
○ 2026-06-09 22:45:30
○ 2026-06-10 03:02:38
● 2026-06-10 18:59:54
○ 2026-06-10 21:07:44
○ 2026-08-06 10:24:54

○A99.86.12.1242026-04-27 → 2026-06-10 · 18 obs

○A99.86.12.342026-04-27 → 2026-06-10 · 18 obs

○A99.86.12.392026-04-27 → 2026-06-10 · 18 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...	-
bootstrap-4-react.com	ns-355.awsdns-44.com, ns-899.awsdns-48.net, ns-1197.awsdns-21.org, ns-1898.awsdns-45.co.uk	2 records

✅ Authoritative Response

Server:205.251.193.99

NS records: ns-355.awsdns-44.com, ns-899.awsdns-48.net, ns-1197.awsdns-21.org, ns-1898.awsdns-45.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bootstrap-4-react.com (unsigned zone)

⏱️ Timing

Total: 631ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.171.76.73, 3.171.76.88...`
NS	4	`ns-1197.awsdns-21.org, ns-1898.awsdns-45.co.uk...`
SOA	1	`ns-1197.awsdns-21.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-355.awsdns-44.com, ns-355.awsdns-44.com)

Analysis

IP Addresses

bootstrap-4-react.com resolves to four IP addresses: 3.171.76.28, 3.171.76.40, 3.171.76.73 and 3.171.76.88.

Among the host names that share IP numbers with bootstrap-4-react.com are hanakabou.jp, alister.codes, perimattic.com and two others.

Name Servers

The domain bootstrap-4-react.com is delegated to these four name servers: ns-355.awsdns-44.com, ns-899.awsdns-48.net, ns-1197.awsdns-21.org and ns-1898.awsdns-45.co.uk.

bootstrap-4-react.com shares at least some of its name servers with other domains, including automatabets.com, amazon-music-audio-transcoding-service-eu-west-1.amazon.com, medix-feed.com and two others.

The host names ns-355.awsdns-44.com, ns-899.awsdns-48.net, ns-1197.awsdns-21.org and ns-1898.awsdns-45.co.uk each resolve to two IP addresses: ns-355.awsdns-44.com resolves to 205.251.193.99 and 2600:9000:5301:6300::1; ns-899.awsdns-48.net resolves to 205.251.195.131 and 2600:9000:5303:8300::1; ns-1197.awsdns-21.org resolves to 205.251.196.173 and 2600:9000:5304:ad00::1; ns-1898.awsdns-45.co.uk resolves to 205.251.199.106 and 2600:9000:5307:6a00::1.