ultimatelesson.org - robtex.com

ultimatelesson.org

DNSSEC⚠️ Not signed
A16.15.176.53🇺🇸 Amazon16.15.176.0/21 EC2 Prefix
A16.15.177.137🇺🇸 Amazon16.15.176.0/21 EC2 Prefix
A16.15.183.128🇺🇸 Amazon16.15.176.0/21 EC2 Prefix
A16.182.71.125🇺🇸 Amazon16.182.71.0/24
A52.216.49.237🇺🇸 Amazon52.216.48.0/20 AWS S3
A52.216.50.181🇺🇸 Amazon52.216.48.0/20 AWS S3
A52.216.60.29🇺🇸 Amazon52.216.48.0/20 AWS S3
A52.217.192.109🇺🇸 Amazon52.217.192.0/19 AWS S3
NSns-1119.awsdns-11.org ⭐
A2600:9000:5304:5f00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1119.awsdns-11.org
A205.251.196.95🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1119.awsdns-11.org
NSns-1963.awsdns-53.co.uk
A2600:9000:5307:ab00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1963.awsdns-53.co.uk
A205.251.199.171🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1963.awsdns-53.co.uk
NSns-371.awsdns-46.com
A2600:9000:5301:7300::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-371.awsdns-46.com
A205.251.193.115🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-371.awsdns-46.com
NSns-518.awsdns-00.net
A2600:9000:5302:600::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-518.awsdns-00.net
A205.251.194.6🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-518.awsdns-00.net
SOAns-1119.awsdns-11.orgawsdns-hostmaster@amazon.com serial=1

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1771291736

Same first word

ultimatelesson.com
ultimatelesson.net
ultimatelesson.org

DNS History

96 records (12 active, 84 former)

20162017201820192020202120222023202420252026NSns-1119.awsdns-11.orgns-1963.awsdns-53.co.ukns-371.awsdns-46.comns-518.awsdns-00.netns63.worldnic.comns64.worldnic.comMXp.webcom.ctmail.comA16.15.176.5316.15.177.13716.15.183.12816.182.71.12552.216.49.23752.216.50.18152.216.60.2952.217.192.10916.15.177.9416.15.179.11716.15.179.12816.15.179.14916.15.180.5016.15.181.11216.15.182.18516.15.183.19816.15.183.22016.15.184.1916.15.187.1816.15.188.316.15.192.15816.15.192.7316.15.193.21916.15.199.12116.15.199.21116.15.199.23816.15.199.5116.15.199.8416.15.202.18316.15.203.13016.15.204.13216.15.207.6716.15.217.3816.15.218.2116.15.236.23716.15.252.21416.182.103.20516.182.106.6116.182.107.11716.182.34.516.182.35.4516.182.71.9316.182.72.29205.214.169.313.5.14.1443.5.24.8952.216.12.10752.216.222.13352.216.222.6152.216.222.9352.216.40.14952.216.40.23752.216.44.5352.216.50.3752.216.54.20552.216.54.3752.216.57.5352.216.60.20552.216.62.22152.216.94.23452.217.114.12552.217.124.13352.217.125.2152.217.132.24552.217.139.17352.217.139.21352.217.139.9352.217.141.19752.217.143.2152.217.170.20552.217.171.10152.217.192.552.217.205.18952.217.231.7752.217.235.12552.217.33.15552.217.74.9152.217.83.13954.231.132.11754.231.134.17354.231.137.20554.231.196.2954.231.199.5354.231.201.20554.231.204.11754.231.224.18954.231.228.10154.231.229.4554.231.233.5
●NSns-1119.awsdns-11.org2026-02-15 → 2026-03-01 · 3 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
● 2026-03-01 16:05:46
●NSns-1963.awsdns-53.co.uk2026-02-15 → 2026-03-01 · 3 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
● 2026-03-01 16:05:46
●NSns-371.awsdns-46.com2026-02-15 → 2026-03-01 · 3 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
● 2026-03-01 16:05:46
●NSns-518.awsdns-00.net2026-02-15 → 2026-03-01 · 3 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
● 2026-03-01 16:05:46
○NSns63.worldnic.com2015-05-27 → 2017-04-10 · 4 obs
● 2015-05-27 00:05:14
● 2017-04-10 02:51:04
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○NSns64.worldnic.com2015-05-27 → 2017-04-10 · 4 obs
● 2015-05-27 00:05:14
● 2017-04-10 02:51:04
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○MXp.webcom.ctmail.com2016-04-04 → 2026-02-17 · 4 obs
● 2016-04-04 23:58:54
● 2026-02-17 00:55:14
○ 2026-02-19 02:12:46
○ 2026-03-01 16:05:46
●A16.15.176.532026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
●A16.15.177.1372026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
○A16.15.177.942026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-17 00:55:14
● 2026-02-19 02:12:46
○ 2026-02-24 01:26:30
○ 2026-03-01 16:05:46
○A16.15.179.1172026-02-15 → 2026-02-15 · 4 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
○ 2026-02-17 00:55:14
○ 2026-03-01 16:05:46
○A16.15.179.1282026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-26 13:13:52
● 2026-02-27 12:30:08
○ 2026-02-27 20:43:06
○ 2026-03-01 16:05:46
○A16.15.179.1492026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-17 00:55:14
● 2026-02-19 02:12:46
○ 2026-02-24 01:26:30
○ 2026-03-01 16:05:46
○A16.15.180.502026-02-17 → 2026-02-17 · 4 obs
○ 2026-02-15 11:03:24
● 2026-02-17 00:55:14
○ 2026-02-19 02:12:46
○ 2026-03-01 16:05:46
○A16.15.181.1122026-02-25 → 2026-02-25 · 4 obs
○ 2026-02-24 01:26:30
● 2026-02-25 04:23:02
○ 2026-02-26 13:13:52
○ 2026-03-01 16:05:46
○A16.15.182.1852026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-26 13:13:52
● 2026-02-27 12:30:08
○ 2026-02-27 20:43:06
○ 2026-03-01 16:05:46
●A16.15.183.1282026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
○A16.15.183.1982026-02-26 → 2026-02-26 · 4 obs
○ 2026-02-25 04:23:02
● 2026-02-26 13:13:52
○ 2026-02-27 12:30:08
○ 2026-03-01 16:05:46
○A16.15.183.2202026-02-26 → 2026-02-26 · 4 obs
○ 2026-02-25 04:23:02
● 2026-02-26 13:13:52
○ 2026-02-27 12:30:08
○ 2026-03-01 16:05:46
○A16.15.184.192026-02-15 → 2026-02-15 · 4 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
○ 2026-02-17 00:55:14
○ 2026-03-01 16:05:46
○A16.15.187.182026-02-15 → 2026-03-01 · 2 obs
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○A16.15.188.32026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 12:30:08
● 2026-02-27 20:43:06
○ 2026-02-28 04:33:10
○ 2026-03-01 16:05:46
○A16.15.192.1582026-02-15 → 2026-03-01 · 2 obs
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○A16.15.192.732026-02-15 → 2026-03-01 · 2 obs
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○A16.15.193.2192026-02-28 → 2026-02-28 · 4 obs
○ 2026-02-27 20:43:06
● 2026-02-28 04:33:10
○ 2026-03-01 16:05:44
○ 2026-03-01 16:05:46
○A16.15.199.1212026-02-25 → 2026-02-25 · 4 obs
○ 2026-02-24 01:26:30
● 2026-02-25 04:23:02
○ 2026-02-26 13:13:52
○ 2026-03-01 16:05:46
○A16.15.199.2112026-02-17 → 2026-02-17 · 4 obs
○ 2026-02-15 11:03:24
● 2026-02-17 00:55:14
○ 2026-02-19 02:12:46
○ 2026-03-01 16:05:46
○A16.15.199.2382026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-17 00:55:14
● 2026-02-19 02:12:46
○ 2026-02-24 01:26:30
○ 2026-03-01 16:05:46
○A16.15.199.512026-02-26 → 2026-02-26 · 4 obs
○ 2026-02-25 04:23:02
● 2026-02-26 13:13:52
○ 2026-02-27 12:30:08
○ 2026-03-01 16:05:46
○A16.15.199.842026-02-15 → 2026-02-15 · 4 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
○ 2026-02-17 00:55:14
○ 2026-03-01 16:05:46
○A16.15.202.1832026-02-26 → 2026-02-26 · 4 obs
○ 2026-02-25 04:23:02
● 2026-02-26 13:13:52
○ 2026-02-27 12:30:08
○ 2026-03-01 16:05:46
○A16.15.203.1302026-02-17 → 2026-02-17 · 4 obs
○ 2026-02-15 11:03:24
● 2026-02-17 00:55:14
○ 2026-02-19 02:12:46
○ 2026-03-01 16:05:46
○A16.15.204.1322026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 12:30:08
● 2026-02-27 20:43:06
○ 2026-02-28 04:33:10
○ 2026-03-01 16:05:46
○A16.15.207.672026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-19 02:12:46
● 2026-02-24 01:26:30
○ 2026-02-25 04:23:02
○ 2026-03-01 16:05:46
○A16.15.217.382026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-26 13:13:52
● 2026-02-27 12:30:08
○ 2026-02-27 20:43:06
○ 2026-03-01 16:05:46
○A16.15.218.212026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-19 02:12:46
● 2026-02-24 01:26:30
○ 2026-02-25 04:23:02
○ 2026-03-01 16:05:46
○A16.15.236.2372026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-26 13:13:52
● 2026-02-27 12:30:08
○ 2026-02-27 20:43:06
○ 2026-03-01 16:05:46
○A16.15.252.2142026-02-25 → 2026-02-25 · 4 obs
○ 2026-02-24 01:26:30
● 2026-02-25 04:23:02
○ 2026-02-26 13:13:52
○ 2026-03-01 16:05:46
○A16.182.103.2052026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 12:30:08
● 2026-02-27 20:43:06
○ 2026-02-28 04:33:10
○ 2026-03-01 16:05:46
○A16.182.106.612026-02-15 → 2026-02-15 · 4 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
○ 2026-02-17 00:55:14
○ 2026-03-01 16:05:46
○A16.182.107.1172026-02-25 → 2026-02-25 · 4 obs
○ 2026-02-24 01:26:30
● 2026-02-25 04:23:02
○ 2026-02-26 13:13:52
○ 2026-03-01 16:05:46
○A16.182.34.52026-02-26 → 2026-02-26 · 4 obs
○ 2026-02-25 04:23:02
● 2026-02-26 13:13:52
○ 2026-02-27 12:30:08
○ 2026-03-01 16:05:46
○A16.182.35.452026-02-15 → 2026-02-15 · 4 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
○ 2026-02-17 00:55:14
○ 2026-03-01 16:05:46
●A16.182.71.1252026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
○A16.182.71.932026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 12:30:08
● 2026-02-27 20:43:06
○ 2026-02-28 04:33:10
○ 2026-03-01 16:05:46
○A16.182.72.292026-02-28 → 2026-02-28 · 4 obs
○ 2026-02-27 20:43:06
● 2026-02-28 04:33:10
○ 2026-03-01 16:05:44
○ 2026-03-01 16:05:46
○A205.214.169.312015-05-27 → 2017-04-10 · 4 obs
● 2015-05-27 00:05:14
● 2017-04-10 02:51:04
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○A3.5.14.1442026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 12:30:08
● 2026-02-27 20:43:06
○ 2026-02-28 04:33:10
○ 2026-03-01 16:05:46
○A3.5.24.892026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-19 02:12:46
● 2026-02-24 01:26:30
○ 2026-02-25 04:23:02
○ 2026-03-01 16:05:46
○A52.216.12.1072026-02-28 → 2026-02-28 · 4 obs
○ 2026-02-27 20:43:06
● 2026-02-28 04:33:10
○ 2026-03-01 16:05:44
○ 2026-03-01 16:05:46
○A52.216.222.1332026-02-28 → 2026-02-28 · 4 obs
○ 2026-02-27 20:43:06
● 2026-02-28 04:33:10
○ 2026-03-01 16:05:44
○ 2026-03-01 16:05:46
○A52.216.222.612026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-19 02:12:46
● 2026-02-24 01:26:30
○ 2026-02-25 04:23:02
○ 2026-03-01 16:05:46
○A52.216.222.932026-02-25 → 2026-02-25 · 4 obs
○ 2026-02-24 01:26:30
● 2026-02-25 04:23:02
○ 2026-02-26 13:13:52
○ 2026-03-01 16:05:46
○A52.216.40.1492026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-17 00:55:14
● 2026-02-19 02:12:46
○ 2026-02-24 01:26:30
○ 2026-03-01 16:05:46
○A52.216.40.2372026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-26 13:13:52
● 2026-02-27 12:30:08
○ 2026-02-27 20:43:06
○ 2026-03-01 16:05:46
○A52.216.44.532026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-26 13:13:52
● 2026-02-27 12:30:08
○ 2026-02-27 20:43:06
○ 2026-03-01 16:05:46
●A52.216.49.2372026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
●A52.216.50.1812026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
○A52.216.50.372026-02-15 → 2026-03-01 · 2 obs
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○A52.216.54.2052026-02-28 → 2026-02-28 · 4 obs
○ 2026-02-27 20:43:06
● 2026-02-28 04:33:10
○ 2026-03-01 16:05:44
○ 2026-03-01 16:05:46
○A52.216.54.372026-02-17 → 2026-02-17 · 4 obs
○ 2026-02-15 11:03:24
● 2026-02-17 00:55:14
○ 2026-02-19 02:12:46
○ 2026-03-01 16:05:46
○A52.216.57.532026-02-25 → 2026-02-25 · 4 obs
○ 2026-02-24 01:26:30
● 2026-02-25 04:23:02
○ 2026-02-26 13:13:52
○ 2026-03-01 16:05:46
○A52.216.60.2052026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-19 02:12:46
● 2026-02-24 01:26:30
○ 2026-02-25 04:23:02
○ 2026-03-01 16:05:46
●A52.216.60.292026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
○A52.216.62.2212026-02-24 → 2026-02-24 · 4 obs
○ 2026-02-19 02:12:46
● 2026-02-24 01:26:30
○ 2026-02-25 04:23:02
○ 2026-03-01 16:05:46
○A52.216.94.2342026-02-26 → 2026-02-26 · 4 obs
○ 2026-02-25 04:23:02
● 2026-02-26 13:13:52
○ 2026-02-27 12:30:08
○ 2026-03-01 16:05:46
○A52.217.114.1252026-02-15 → 2026-03-01 · 2 obs
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○A52.217.124.1332026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 12:30:08
● 2026-02-27 20:43:06
○ 2026-02-28 04:33:10
○ 2026-03-01 16:05:46
○A52.217.125.212026-02-17 → 2026-02-17 · 4 obs
○ 2026-02-15 11:03:24
● 2026-02-17 00:55:14
○ 2026-02-19 02:12:46
○ 2026-03-01 16:05:46
○A52.217.132.2452026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-26 13:13:52
● 2026-02-27 12:30:08
○ 2026-02-27 20:43:06
○ 2026-03-01 16:05:46
○A52.217.139.1732026-02-15 → 2026-03-01 · 2 obs
○ 2026-02-15 11:03:24
○ 2026-03-01 16:05:46
○A52.217.139.2132026-02-28 → 2026-02-28 · 4 obs
○ 2026-02-27 20:43:06
● 2026-02-28 04:33:10
○ 2026-03-01 16:05:44
○ 2026-03-01 16:05:46
○A52.217.139.932026-02-28 → 2026-02-28 · 4 obs
○ 2026-02-27 20:43:06
● 2026-02-28 04:33:10
○ 2026-03-01 16:05:44
○ 2026-03-01 16:05:46
○A52.217.141.1972026-02-27 → 2026-02-27 · 4 obs
○ 2026-02-27 12:30:08
● 2026-02-27 20:43:06
○ 2026-02-28 04:33:10
○ 2026-03-01 16:05:46
○A52.217.143.212026-02-19 → 2026-02-19 · 4 obs
○ 2026-02-17 00:55:14
● 2026-02-19 02:12:46
○ 2026-02-24 01:26:30
○ 2026-03-01 16:05:46
○A52.217.170.2052026-02-25 → 2026-02-25 · 4 obs
○ 2026-02-24 01:26:30
● 2026-02-25 04:23:02
○ 2026-02-26 13:13:52
○ 2026-03-01 16:05:46
○A52.217.171.1012026-02-17 → 2026-02-17 · 4 obs
○ 2026-02-15 11:03:24
● 2026-02-17 00:55:14
○ 2026-02-19 02:12:46
○ 2026-03-01 16:05:46
●A52.217.192.1092026-03-01 → 2026-03-01 · 3 obs
○ 2026-02-28 04:33:10
● 2026-03-01 16:05:44
● 2026-03-01 16:05:46
○A52.217.192.52026-02-15 → 2026-02-15 · 4 obs
○ 2017-04-10 02:51:04
● 2026-02-15 11:03:24
○ 2026-02-17 00:55:14
○ 2026-03-01 16:05:46
○A52.217.205.1892026-02-15 → 2026-03-01 · 2 obs
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○A52.217.231.772026-02-27 → 2026-02-27 · 4 obs
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○A52.217.235.1252026-02-19 → 2026-02-19 · 4 obs
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○A52.217.74.912026-02-27 → 2026-02-27 · 4 obs
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○A52.217.83.1392026-02-25 → 2026-02-25 · 4 obs
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○A54.231.132.1172026-02-24 → 2026-02-24 · 4 obs
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○A54.231.134.1732026-02-24 → 2026-02-24 · 4 obs
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○A54.231.137.2052026-02-17 → 2026-02-17 · 4 obs
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○A54.231.196.292026-02-19 → 2026-02-19 · 4 obs
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○A54.231.199.532026-02-15 → 2026-03-01 · 2 obs
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○A54.231.201.2052026-02-26 → 2026-02-26 · 4 obs
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○A54.231.204.1172026-02-15 → 2026-02-15 · 4 obs
○ 2017-04-10 02:51:04
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○A54.231.224.1892026-02-15 → 2026-02-15 · 4 obs
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○A54.231.228.1012026-02-19 → 2026-02-19 · 4 obs
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○A54.231.229.452026-02-17 → 2026-02-17 · 4 obs
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○A54.231.233.52026-02-26 → 2026-02-26 · 4 obs
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○ 2026-03-01 16:05:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, d0.org.afilias-nst.org, b2.org.afilias-nst.org-
ultimatelesson.orgns-1963.awsdns-53.co.uk, ns-371.awsdns-46.com, ns-518.awsdns-00.net, ns-1119.awsdns-11.org1 record

✅ Authoritative Response

Server: 205.251.196.95

NS records: ns-1963.awsdns-53.co.uk, ns-371.awsdns-46.com, ns-518.awsdns-00.net, ns-1119.awsdns-11.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ultimatelesson.org (unsigned zone)

⏱️ Timing

Total: 606ms | Queries: -

📄 Records

TypeCountSample Data
A854.231.170.45, 52.217.206.125...
NS4ns-1119.awsdns-11.org, ns-1963.awsdns-53.co.uk...
SOA1ns-1119.awsdns-11.org awsdns-hostmaster.

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-1119.awsdns-11.org)

Analysis

IP Addresses

ultimatelesson.org points to eight IP numbers: 16.15.176.53, 16.15.177.137, 16.15.183.128, 16.182.71.125, 52.216.49.237, 52.216.50.181, 52.216.60.29 and 52.217.192.109.

Other host names, for instance iterativestrategies.com, divinetruth.us, offerup.us, grupoenergisa.com.br and daviemclellan.com share IP numbers with ultimatelesson.org.

Name Servers

ultimatelesson.org is delegated to four name servers: ns-371.awsdns-46.com, ns-518.awsdns-00.net, ns-1119.awsdns-11.org and ns-1963.awsdns-53.co.uk.

ultimatelesson.org at least partially shares name servers with other domains such as homenglish.net, avaha.net, knowledgeleader.com.mx, citypointe.biz and d1e8i99ojf0zul.cloudfront.net.

These name servers are often used together with ns-238.awsdns-29.com, ns-1354.awsdns-41.org, ns-924.awsdns-51.net, ns1.crossbar.org, ns2.crossbar.org, ns3.crossbar.org, ns4.crossbar.org and ns-260.awsdns-32.com.

Host names with two IP numbers:

ns-371.awsdns-46.com points to 2600:9000:5301:7300::1 and 205.251.193.115

ns-518.awsdns-00.net points to 2600:9000:5302:600::1 and 205.251.194.6

ns-1119.awsdns-11.org points to 2600:9000:5304:5f00::1 and 205.251.196.95

ns-1963.awsdns-53.co.uk points to 2600:9000:5307:ab00::1 and 205.251.199.171