cemath.com - dns.ninja

cemath.com

DNSSEC⚠️ Not signed
NSa.share-dns.com ⚠️ Not in zone NS records
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSa5.share-dns.com ⚠️ Not in parent delegation
A172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb.share-dns.net ⚠️ Not in zone NS records
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSb5.share-dns.net ⚠️ Not in parent delegation
A172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US

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=1786363074

Previously MX for

cemath.com

Subdomains

mx-2.cemath.com
mx-1.cemath.com

Similar names

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themac.education

DNS History

26 records (4 active, 22 former)

20162017201820192020202120222023202420252026NSa.share-dns.coma5.share-dns.comb.share-dns.netb5.share-dns.netexpired1.namebrightdns.comexpired2.namebrightdns.comns1.namebrightdns.comns1.redcoruna.comns2.redcoruna.comns3.redcoruna.comns5.afternic.comns6.afternic.comverification-mdzaaqbc9wh5xb8j4cudbd.ns101.verify.hnMX.cemath.commail1.namebrightmail.commail2.namebrightmail.commx-1.cemath.commx-2.cemath.comA13.248.169.48212.48.80.2002600:1f18:4ae:c607:d1d9:565f:b122:bfdb2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a52.44.244.9854.165.131.18376.223.54.146
●NSa.share-dns.com2026-08-10 → 2026-08-10 · 3 obs
○ 2026-08-06 17:39:38
● 2026-08-10 12:04:32
● 2026-08-10 12:04:34
●NSa5.share-dns.com2026-08-10 → 2026-08-10 · 3 obs
○ 2026-08-06 17:39:38
● 2026-08-10 12:04:32
● 2026-08-10 12:04:34
●NSb.share-dns.net2026-08-10 → 2026-08-10 · 3 obs
○ 2026-08-06 17:39:38
● 2026-08-10 12:04:32
● 2026-08-10 12:04:34
●NSb5.share-dns.net2026-08-10 → 2026-08-10 · 3 obs
○ 2026-08-06 17:39:38
● 2026-08-10 12:04:32
● 2026-08-10 12:04:34
○NSexpired1.namebrightdns.com2026-06-17 → 2026-06-17 · 4 obs
○ 2026-05-21 05:30:26
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○NSexpired2.namebrightdns.com2026-06-17 → 2026-06-17 · 4 obs
○ 2026-05-21 05:30:26
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○NSns1.namebrightdns.com2026-06-17 → 2026-06-17 · 4 obs
○ 2026-05-21 05:30:26
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○NSns1.redcoruna.com2015-07-19 → 2017-05-17 · 4 obs
● 2015-07-19 03:33:34
● 2017-05-17 01:52:56
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○NSns2.redcoruna.com2015-07-19 → 2017-05-17 · 4 obs
● 2015-07-19 03:33:34
● 2017-05-17 01:52:56
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○NSns3.redcoruna.com2015-07-19 → 2017-05-17 · 4 obs
● 2015-07-19 03:33:34
● 2017-05-17 01:52:56
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○NSns5.afternic.com2026-04-07 → 2026-05-21 · 5 obs
○ 2017-05-17 01:52:56
● 2026-04-07 21:49:02
● 2026-05-21 05:30:26
○ 2026-06-17 15:10:24
○ 2026-08-10 12:04:34
○NSns6.afternic.com2026-04-07 → 2026-05-21 · 5 obs
○ 2017-05-17 01:52:56
● 2026-04-07 21:49:02
● 2026-05-21 05:30:26
○ 2026-06-17 15:10:24
○ 2026-08-10 12:04:34
○NSverification-mdzaaqbc9wh5xb8j4cudbd.ns101.verify.hn2026-04-07 → 2026-05-21 · 5 obs
○ 2017-05-17 01:52:56
● 2026-04-07 21:49:02
● 2026-05-21 05:30:26
○ 2026-06-17 15:10:24
○ 2026-08-10 12:04:34
○MX.2026-04-07 → 2026-08-10 · 2 obs
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○MXcemath.com2015-07-19 → 2017-05-17 · 4 obs
● 2015-07-19 03:33:34
● 2017-05-17 01:52:56
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○MXmail1.namebrightmail.com2026-06-17 → 2026-06-17 · 4 obs
○ 2026-04-07 21:49:02
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○MXmail2.namebrightmail.com2026-06-17 → 2026-06-17 · 4 obs
○ 2026-04-07 21:49:02
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○MXmx-1.cemath.com2015-07-19 → 2017-05-17 · 4 obs
● 2015-07-19 03:33:34
● 2017-05-17 01:52:56
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○MXmx-2.cemath.com2015-07-19 → 2017-05-17 · 4 obs
● 2015-07-19 03:33:34
● 2017-05-17 01:52:56
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○A13.248.169.482026-04-07 → 2026-05-21 · 5 obs
○ 2017-05-17 01:52:56
● 2026-04-07 21:49:02
● 2026-05-21 05:30:26
○ 2026-06-17 15:10:24
○ 2026-08-10 12:04:34
○A212.48.80.2002015-07-19 → 2017-05-17 · 4 obs
● 2015-07-19 03:33:34
● 2017-05-17 01:52:56
○ 2026-04-07 21:49:02
○ 2026-08-10 12:04:34
○A2600:1f18:4ae:c607:d1d9:565f:b122:bfdb2026-06-17 → 2026-06-17 · 4 obs
○ 2026-05-21 05:30:26
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○A2600:1f18:4ae:c608:83f8:2f9c:4a61:7b6a2026-06-17 → 2026-06-17 · 4 obs
○ 2026-05-21 05:30:26
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○A52.44.244.982026-06-17 → 2026-06-17 · 4 obs
○ 2026-05-21 05:30:26
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○A54.165.131.1832026-06-17 → 2026-06-17 · 4 obs
○ 2026-05-21 05:30:26
● 2026-06-17 15:10:24
○ 2026-08-06 17:39:38
○ 2026-08-10 12:04:34
○A76.223.54.1462026-04-07 → 2026-05-21 · 5 obs
○ 2017-05-17 01:52:56
● 2026-04-07 21:49:02
● 2026-05-21 05:30:26
○ 2026-06-17 15:10:24
○ 2026-08-10 12:04:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
cemath.comb5.share-dns.net, a5.share-dns.com1 record

✅ Authoritative Response

Server:172.64.53.25

NS records: b5.share-dns.net, a5.share-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cemath.com (unsigned zone)

⏱️ Timing

Total: 283ms | Queries: -

📄 Records

TypeCountSample Data
NS2a.share-dns.com, b.share-dns.net

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a5.share-dns.com)

Analysis

Hierarchy

mx-2.cemath.com and mx-1.cemath.com are both subdomains of cemath.com.

Name Servers

The authoritative name servers for cemath.com are a5.share-dns.com, a.share-dns.com, b5.share-dns.net and b.share-dns.net.

cemath.com has at least partial name server overlap with other domains, such as bidudresidency.com, kaiyun-casino-official.com, 360ubest.cn and two others.

a11.share-dns.com, b11.share-dns.net and a10.share-dns.com — plus 7 other name servers — are commonly paired with these name servers.

Four host names each point to one IP address: a5.share-dns.com and a.share-dns.com both point to 172.64.53.25, and b5.share-dns.net and b.share-dns.net both point to 172.64.52.239.

Both a5.share-dns.com and a.share-dns.com resolve to 172.64.53.25 IP addresses each.

Both b5.share-dns.net and b.share-dns.net resolve to 172.64.52.239 IP addresses each.