classgap.com - dns.ninja

classgap.com

DNSSEC⚠️ Not signed
A34.254.49.100🇮🇪 Amazon34.248.0.0/13 EC2 DUB prefix
PTRec2-34-254-49-100.eu-west-1.compute.amazonaws.com
A52.214.54.156🇮🇪 Amazon52.208.0.0/13 EC2 DUB prefix
A54.73.128.11🇮🇪 Amazon54.73.0.0/16 EC2 DUB prefix
NSns-1849.awsdns-39.co.uk ⭐
A2600:9000:5307:3900::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1849.awsdns-39.co.uk
A205.251.199.57🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1849.awsdns-39.co.uk
NSns-1350.awsdns-40.org
A2600:9000:5305:4600::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1350.awsdns-40.org
A205.251.197.70🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1350.awsdns-40.org
NSns-152.awsdns-19.com
A2600:9000:5300:9800::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-152.awsdns-19.com
A205.251.192.152🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-152.awsdns-19.com
NSns-900.awsdns-48.net
A2600:9000:5303:8400::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront
PTRns-900.awsdns-48.net
A205.251.195.132🇺🇸 Amazon205.251.195.0/24 prefix
PTRns-900.awsdns-48.net
MXmail1.classgap.com ⭐
MXmail2.classgap.com(20)
MXmail.classgap.com(40)
MXinbound-smtp.eu-west-1.amazonaws.com(60)
A18.200.203.69🇮🇪 Amazon18.200.0.0/16 EC2 DUB prefix
PTRec2-18-200-203-69.eu-west-1.compute.amazonaws.com
A54.76.31.185🇮🇪 Amazon54.76.0.0/15 EC2 DUB prefix
PTRec2-54-76-31-185.eu-west-1.compute.amazonaws.com
A54.155.140.59🇮🇪 Amazon54.155.0.0/16 EC2 DUB prefix
PTRec2-54-155-140-59.eu-west-1.compute.amazonaws.com
TXTv=spf1 mx ip4:93.90.28.128/28 ip4:18.203.0.13/32 ip4:3.255.68.133/32 ip4:176....
SOAns-1849.awsdns-39.co.ukawsdns-hostmaster@amazon.com serial=1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1785537417
rank #371051 globally
rank #152898 in the tld
📈 Tranco rank: #223,388

Subdomains

mail2.classgap.com
lesson.classgap.com
optimizely.classgap.com
bdtb.classgap.com
mail1.classgap.com
mail.classgap.com
mail3.classgap.com

Same first word

classgap.es
classgap.com

Similar names

caplassg.com
pgclassa.com.my
pacglass.com.au
glasscap.net
apcglass.com
spcalgas.com
glasspac.com
cpaglass.com
capglass.com
gapclass.com
gpcasals.com
glasscap.eu
glasscap.com

DNS History

64 records (11 active, 53 former)

20162017201820192020202120222023202420252026NSns-1350.awsdns-40.orgns-152.awsdns-19.comns-1849.awsdns-39.co.ukns-900.awsdns-48.netns1.cdmon.netns2.cdmon.netns3.cdmon.netns4.cdmondns-01.orgns5.cdmondns-01.comMXinbound-smtp.eu-west-1.amazonaws.commail.classgap.commail1.classgap.commail2.classgap.commail3.classgap.comA34.254.49.10052.214.54.15654.73.128.11108.132.131.18108.132.45.185108.132.98.249108.133.27.23518.200.133.8318.200.56.14823.97.148.1334.242.185.23434.246.144.22134.248.41.6834.248.9.034.249.169.16034.250.221.22634.251.93.19734.252.54.19534.253.1.21934.255.220.8746.137.174.25346.137.34.21952.16.13.9252.17.218.7752.18.65.19452.208.223.9152.209.216.23952.213.133.25052.215.141.6052.215.152.5052.30.151.15352.31.64.17252.48.235.7252.49.65.18854.194.223.2154.195.140.6054.220.24.18754.228.229.13554.229.176.7154.247.137.10454.247.43.20754.72.17.16554.72.89.9754.72.90.6454.74.160.14654.75.237.14354.77.133.10554.78.153.24863.34.75.10799.80.80.249
●NSns-1350.awsdns-40.org2026-03-16 → 2026-07-31 · 3 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-07-31 23:04:10
●NSns-152.awsdns-19.com2026-03-16 → 2026-07-31 · 3 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-07-31 23:04:10
●NSns-1849.awsdns-39.co.uk2026-03-16 → 2026-07-31 · 3 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-07-31 23:04:10
●NSns-900.awsdns-48.net2026-03-16 → 2026-07-31 · 3 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-07-31 23:04:10
○NSns1.cdmon.net2015-08-03 → 2018-08-15 · 4 obs
● 2015-08-03 20:15:20
● 2018-08-15 01:20:30
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
○NSns2.cdmon.net2015-08-03 → 2018-08-15 · 4 obs
● 2015-08-03 20:15:20
● 2018-08-15 01:20:30
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
○NSns3.cdmon.net2015-08-03 → 2018-08-15 · 4 obs
● 2015-08-03 20:15:20
● 2018-08-15 01:20:30
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
○NSns4.cdmondns-01.org2018-08-15 → 2018-08-15 · 4 obs
○ 2015-08-03 20:15:20
● 2018-08-15 01:20:30
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
○NSns5.cdmondns-01.com2018-08-15 → 2018-08-15 · 4 obs
○ 2015-08-03 20:15:20
● 2018-08-15 01:20:30
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
●MXinbound-smtp.eu-west-1.amazonaws.com2026-03-16 → 2026-07-31 · 3 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-07-31 23:04:10
●MXmail.classgap.com2015-08-03 → 2026-07-31 · 2 obs
● 2015-08-03 20:15:20
● 2026-07-31 23:04:10
●MXmail1.classgap.com2015-12-05 → 2026-07-31 · 3 obs
○ 2015-08-03 20:15:20
● 2015-12-05 05:15:12
● 2026-07-31 23:04:10
●MXmail2.classgap.com2015-08-03 → 2026-07-31 · 5 obs
● 2015-08-03 20:15:20
○ 2015-12-05 05:15:12
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-07-31 23:04:10
○MXmail3.classgap.com2015-12-05 → 2018-08-15 · 5 obs
○ 2015-08-03 20:15:20
● 2015-12-05 05:15:12
● 2018-08-15 01:20:30
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
○A108.132.131.182026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-10 18:43:38
● 2026-06-15 18:10:40
○ 2026-06-18 13:39:20
○ 2026-07-31 23:04:10
○A108.132.45.1852026-06-18 → 2026-06-18 · 4 obs
○ 2026-06-15 18:10:40
● 2026-06-18 13:39:20
○ 2026-06-26 09:59:32
○ 2026-07-31 23:04:10
○A108.132.98.2492026-06-26 → 2026-06-26 · 4 obs
○ 2026-06-26 09:59:32
● 2026-06-26 15:33:40
○ 2026-07-08 08:19:20
○ 2026-07-31 23:04:10
○A108.133.27.2352026-07-17 → 2026-07-17 · 4 obs
○ 2026-07-08 08:19:20
● 2026-07-17 21:32:24
○ 2026-07-30 16:41:02
○ 2026-07-31 23:04:10
○A18.200.133.832026-03-16 → 2026-07-31 · 2 obs
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
○A18.200.56.1482026-06-03 → 2026-06-03 · 4 obs
○ 2026-05-22 04:32:56
● 2026-06-03 07:56:46
○ 2026-06-10 15:34:06
○ 2026-07-31 23:04:10
○A23.97.148.132015-08-03 → 2018-08-15 · 4 obs
● 2015-08-03 20:15:20
● 2018-08-15 01:20:30
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
○A34.242.185.2342026-05-22 → 2026-05-22 · 4 obs
○ 2026-05-07 15:58:42
● 2026-05-22 04:32:56
○ 2026-06-03 07:56:46
○ 2026-07-31 23:04:10
○A34.246.144.2212026-03-16 → 2026-03-20 · 5 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-03-20 13:45:40
○ 2026-03-24 05:03:06
○ 2026-07-31 23:04:10
○A34.248.41.682026-04-30 → 2026-05-02 · 5 obs
○ 2026-04-23 23:48:44
● 2026-04-30 09:05:34
● 2026-05-02 04:02:54
○ 2026-05-07 15:58:42
○ 2026-07-31 23:04:10
○A34.248.9.02026-05-02 → 2026-05-02 · 4 obs
○ 2026-04-30 09:05:34
● 2026-05-02 04:02:54
○ 2026-05-07 15:58:42
○ 2026-07-31 23:04:10
○A34.249.169.1602026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-10 18:43:38
● 2026-06-15 18:10:40
○ 2026-06-18 13:39:20
○ 2026-07-31 23:04:10
○A34.250.221.2262026-05-07 → 2026-05-07 · 4 obs
○ 2026-05-02 04:02:54
● 2026-05-07 15:58:42
○ 2026-05-22 04:32:56
○ 2026-07-31 23:04:10
○A34.251.93.1972026-06-10 → 2026-06-10 · 5 obs
○ 2026-06-03 07:56:46
● 2026-06-10 15:34:06
● 2026-06-10 18:43:38
○ 2026-06-15 18:10:40
○ 2026-07-31 23:04:10
○A34.252.54.1952026-05-07 → 2026-05-07 · 4 obs
○ 2026-05-02 04:02:54
● 2026-05-07 15:58:42
○ 2026-05-22 04:32:56
○ 2026-07-31 23:04:10
○A34.253.1.2192026-03-16 → 2026-07-31 · 2 obs
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
●A34.254.49.1002026-07-30 → 2026-07-31 · 3 obs
○ 2026-07-17 21:32:24
● 2026-07-30 16:41:02
● 2026-07-31 23:04:10
○A34.255.220.872026-06-10 → 2026-06-10 · 5 obs
○ 2026-06-03 07:56:46
● 2026-06-10 15:34:06
● 2026-06-10 18:43:38
○ 2026-06-15 18:10:40
○ 2026-07-31 23:04:10
○A46.137.174.2532026-07-17 → 2026-07-17 · 4 obs
○ 2026-07-08 08:19:20
● 2026-07-17 21:32:24
○ 2026-07-30 16:41:02
○ 2026-07-31 23:04:10
○A46.137.34.2192026-06-15 → 2026-06-15 · 4 obs
○ 2026-06-10 18:43:38
● 2026-06-15 18:10:40
○ 2026-06-18 13:39:20
○ 2026-07-31 23:04:10
○A52.16.13.922026-03-24 → 2026-03-24 · 4 obs
○ 2026-03-20 13:45:40
● 2026-03-24 05:03:06
○ 2026-04-09 05:07:54
○ 2026-07-31 23:04:10
○A52.17.218.772026-06-10 → 2026-06-10 · 5 obs
○ 2026-06-03 07:56:46
● 2026-06-10 15:34:06
● 2026-06-10 18:43:38
○ 2026-06-15 18:10:40
○ 2026-07-31 23:04:10
○A52.18.65.1942026-05-07 → 2026-05-07 · 4 obs
○ 2026-05-02 04:02:54
● 2026-05-07 15:58:42
○ 2026-05-22 04:32:56
○ 2026-07-31 23:04:10
○A52.208.223.912026-06-26 → 2026-06-26 · 4 obs
○ 2026-06-26 09:59:32
● 2026-06-26 15:33:40
○ 2026-07-08 08:19:20
○ 2026-07-31 23:04:10
○A52.209.216.2392026-07-17 → 2026-07-17 · 4 obs
○ 2026-07-08 08:19:20
● 2026-07-17 21:32:24
○ 2026-07-30 16:41:02
○ 2026-07-31 23:04:10
○A52.213.133.2502026-03-16 → 2026-07-31 · 2 obs
○ 2026-03-16 18:51:58
○ 2026-07-31 23:04:10
●A52.214.54.1562026-07-30 → 2026-07-31 · 3 obs
○ 2026-07-17 21:32:24
● 2026-07-30 16:41:02
● 2026-07-31 23:04:10
○A52.215.141.602026-03-16 → 2026-03-20 · 5 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-03-20 13:45:40
○ 2026-03-24 05:03:06
○ 2026-07-31 23:04:10
○A52.215.152.502026-06-26 → 2026-06-26 · 4 obs
○ 2026-06-18 13:39:20
● 2026-06-26 09:59:32
○ 2026-06-26 15:33:40
○ 2026-07-31 23:04:10
○A52.30.151.1532026-07-08 → 2026-07-08 · 4 obs
○ 2026-06-26 15:33:40
● 2026-07-08 08:19:20
○ 2026-07-17 21:32:24
○ 2026-07-31 23:04:10
○A52.31.64.1722026-04-09 → 2026-04-09 · 4 obs
○ 2026-03-24 05:03:06
● 2026-04-09 05:07:54
○ 2026-04-23 22:15:12
○ 2026-07-31 23:04:10
○A52.48.235.722026-04-09 → 2026-04-09 · 4 obs
○ 2026-03-24 05:03:06
● 2026-04-09 05:07:54
○ 2026-04-23 22:15:12
○ 2026-07-31 23:04:10
○A52.49.65.1882026-07-08 → 2026-07-08 · 4 obs
○ 2026-06-26 15:33:40
● 2026-07-08 08:19:20
○ 2026-07-17 21:32:24
○ 2026-07-31 23:04:10
○A54.194.223.212026-07-08 → 2026-07-08 · 4 obs
○ 2026-06-26 15:33:40
● 2026-07-08 08:19:20
○ 2026-07-17 21:32:24
○ 2026-07-31 23:04:10
○A54.195.140.602026-04-23 → 2026-04-30 · 5 obs
○ 2026-04-09 05:07:54
● 2026-04-23 22:15:12
● 2026-04-30 09:05:34
○ 2026-05-02 04:02:54
○ 2026-07-31 23:04:10
○A54.220.24.1872026-06-18 → 2026-06-18 · 4 obs
○ 2026-06-15 18:10:40
● 2026-06-18 13:39:20
○ 2026-06-26 09:59:32
○ 2026-07-31 23:04:10
○A54.228.229.1352026-05-22 → 2026-05-22 · 4 obs
○ 2026-05-07 15:58:42
● 2026-05-22 04:32:56
○ 2026-06-03 07:56:46
○ 2026-07-31 23:04:10
○A54.229.176.712026-03-16 → 2026-03-24 · 5 obs
○ 2018-08-15 01:20:30
● 2026-03-16 18:51:58
● 2026-03-24 05:03:06
○ 2026-04-09 05:07:54
○ 2026-07-31 23:04:10
○A54.247.137.1042026-06-26 → 2026-06-26 · 4 obs
○ 2026-06-18 13:39:20
● 2026-06-26 09:59:32
○ 2026-06-26 15:33:40
○ 2026-07-31 23:04:10
○A54.247.43.2072026-06-03 → 2026-06-03 · 4 obs
○ 2026-05-22 04:32:56
● 2026-06-03 07:56:46
○ 2026-06-10 15:34:06
○ 2026-07-31 23:04:10
○A54.72.17.1652026-05-22 → 2026-06-03 · 5 obs
○ 2026-05-07 15:58:42
● 2026-05-22 04:32:56
● 2026-06-03 07:56:46
○ 2026-06-10 15:34:06
○ 2026-07-31 23:04:10
○A54.72.89.972026-06-18 → 2026-06-18 · 4 obs
○ 2026-06-15 18:10:40
● 2026-06-18 13:39:20
○ 2026-06-26 09:59:32
○ 2026-07-31 23:04:10
○A54.72.90.642026-04-23 → 2026-04-23 · 5 obs
○ 2026-04-09 05:07:54
● 2026-04-23 22:15:12
● 2026-04-23 23:48:44
○ 2026-04-30 09:05:34
○ 2026-07-31 23:04:10
●A54.73.128.112026-07-30 → 2026-07-31 · 3 obs
○ 2026-07-17 21:32:24
● 2026-07-30 16:41:02
● 2026-07-31 23:04:10
○A54.74.160.1462026-05-02 → 2026-05-02 · 4 obs
○ 2026-04-30 09:05:34
● 2026-05-02 04:02:54
○ 2026-05-07 15:58:42
○ 2026-07-31 23:04:10
○A54.75.237.1432026-06-26 → 2026-06-26 · 4 obs
○ 2026-06-18 13:39:20
● 2026-06-26 09:59:32
○ 2026-06-26 15:33:40
○ 2026-07-31 23:04:10
○A54.77.133.1052026-03-24 → 2026-03-24 · 4 obs
○ 2026-03-20 13:45:40
● 2026-03-24 05:03:06
○ 2026-04-09 05:07:54
○ 2026-07-31 23:04:10
○A54.78.153.2482026-04-09 → 2026-04-09 · 4 obs
○ 2026-03-24 05:03:06
● 2026-04-09 05:07:54
○ 2026-04-23 22:15:12
○ 2026-07-31 23:04:10
○A63.34.75.1072026-06-26 → 2026-06-26 · 4 obs
○ 2026-06-26 09:59:32
● 2026-06-26 15:33:40
○ 2026-07-08 08:19:20
○ 2026-07-31 23:04:10
○A99.80.80.2492026-04-23 → 2026-04-30 · 5 obs
○ 2026-04-09 05:07:54
● 2026-04-23 22:15:12
● 2026-04-30 09:05:34
○ 2026-05-02 04:02:54
○ 2026-07-31 23:04:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net...-
classgap.comns-152.awsdns-19.com, ns-900.awsdns-48.net, ns-1849.awsdns-39.co.uk, ns-1350.awsdns-40.org2 records

✅ Authoritative Response

Server:205.251.199.57

NS records: ns-152.awsdns-19.com, ns-900.awsdns-48.net, ns-1849.awsdns-39.co.uk, ns-1350.awsdns-40.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classgap.com (unsigned zone)

⏱️ Timing

Total: 569ms | Queries: -

📄 Records

TypeCountSample Data
A354.73.128.11, 34.254.49.100...
NS4ns-1350.awsdns-40.org, ns-152.awsdns-19.com...
MX4mail.classgap.com (pri: 10), mail1.classgap.com (pri: 20)...
TXT1v=spf1 mx ip4:93.90.28.128/28 ip4:18.203
SOA1ns-1849.awsdns-39.co.uk awsdns-hostmaste

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-152.awsdns-19.com, ns-152.awsdns-19.com)

Analysis

Hierarchy

Among the subdomains of classgap.com are mail2.classgap.com, lesson.classgap.com, optimizely.classgap.com, bdtb.classgap.com, mail1.classgap.com and a few other host names.

IP Addresses

classgap.com directs to three IP numbers: 34.254.49.100, 52.214.54.156 and 54.73.128.11.

Further host names like ec2-34-254-49-100.eu-west-1.compute.amazonaws.com and ec2-52-214-54-156.eu-west-1.compute.amazonaws.com overlap in IP numbers with classgap.com.

Name Servers

The domain classgap.com is delegated to these four name servers: ns-152.awsdns-19.com, ns-900.awsdns-48.net, ns-1350.awsdns-40.org and ns-1849.awsdns-39.co.uk.

There is at least partial name server overlap between classgap.com and other domains — appningas.com, centralvillagebangkok.com, ecp-cloud-dev.com and two more among them.

The name servers ns-305.awsdns-38.com, ns-1434.awsdns-51.org and ns-1576.awsdns-05.co.uk are often found in combination with these name servers.

All four hostnames — ns-152.awsdns-19.com, ns-900.awsdns-48.net, ns-1350.awsdns-40.org and ns-1849.awsdns-39.co.uk — resolve to two IP numbers apiece: ns-152.awsdns-19.com to 205.251.192.152 and 2600:9000:5300:9800::1; ns-900.awsdns-48.net to 205.251.195.132 and 2600:9000:5303:8400::1; ns-1350.awsdns-40.org to 205.251.197.70 and 2600:9000:5305:4600::1; ns-1849.awsdns-39.co.uk to 205.251.199.57 and 2600:9000:5307:3900::1.

Mail Servers

Mail for classgap.com is handled by four mail servers: mail1.classgap.com, mail2.classgap.com, mail.classgap.com and inbound-smtp.eu-west-1.amazonaws.com.

classgap.com shares at least some of its mail servers with other domains — for example ester.com.tr, etas-dev-staging.com, guava.by and two more.

Hosts with three IP address records:

inbound-smtp.eu-west-1.amazonaws.com resolves to 18.200.203.69, 54.76.31.185 and 54.155.140.59.