hmhscience.com - robtex.com
hmhscience.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 34.197.4.140🇺🇸 Amazon | ||||||
| PTR | ec2-34-197-4-140.compute-1.amazonaws.com | ||||||
| A | 52.72.199.156🇺🇸 Amazon | ||||||
| A | 52.202.117.14🇺🇸 Amazon | ||||||
| NS | ns-1787.awsdns-31.co.uk ⭐ | ||||||
| A | 2600:9000:5306:fb00::1🇺🇸 Amazon | ||||||
| PTR | ns-1787.awsdns-31.co.uk | ||||||
| A | 205.251.198.251🇺🇸 Amazon | ||||||
| PTR | ns-1787.awsdns-31.co.uk | ||||||
| NS | ns-1027.awsdns-00.org | ||||||
| A | 2600:9000:5304:300::1🇺🇸 Amazon | ||||||
| PTR | ns-1027.awsdns-00.org | ||||||
| A | 205.251.196.3🇺🇸 Amazon | ||||||
| PTR | ns-1027.awsdns-00.org | ||||||
| NS | ns-287.awsdns-35.com | ||||||
| A | 2600:9000:5301:1f00::1🇺🇸 Amazon | ||||||
| PTR | ns-287.awsdns-35.com | ||||||
| A | 205.251.193.31🇺🇸 Amazon | ||||||
| PTR | ns-287.awsdns-35.com | ||||||
| NS | ns-552.awsdns-05.net | ||||||
| A | 2600:9000:5302:2800::1🇺🇸 Amazon | ||||||
| PTR | ns-552.awsdns-05.net | ||||||
| A | 205.251.194.40🇺🇸 Amazon | ||||||
| PTR | ns-552.awsdns-05.net | ||||||
| SOA | ns-1787.awsdns-31.co.ukawsdns-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.netnstld@verisign-grs.com serial=1771291435 | ||||||
Up
www.hmhscience.com |
Same first word
hmhscience.com |
Similar names
DNS History
16 records (7 active, 9 former)
●NSns-1027.awsdns-00.org2017-09-30 → 2026-02-21 · 3 obs
● 2017-09-30 06:05:12
● 2026-02-21 09:51:56
●NSns-1787.awsdns-31.co.uk2017-09-30 → 2026-02-21 · 3 obs
● 2017-09-30 06:05:12
● 2026-02-21 09:51:56
●NSns-287.awsdns-35.com2017-09-30 → 2026-02-21 · 3 obs
● 2017-09-30 06:05:12
● 2026-02-21 09:51:56
●NSns-552.awsdns-05.net2017-09-30 → 2026-02-21 · 3 obs
● 2017-09-30 06:05:12
● 2026-02-21 09:51:56
○NSns5.hmco.com2016-07-26 → 2017-07-28 · 4 obs
● 2017-07-28 18:40:30
○ 2017-09-30 06:05:12
○ 2026-02-21 09:51:56
○NSns6.hmco.com2016-07-26 → 2017-07-28 · 4 obs
● 2017-07-28 18:40:30
○ 2017-09-30 06:05:12
○ 2026-02-21 09:51:56
○NSns7.hmco.com2016-07-26 → 2017-07-28 · 4 obs
● 2017-07-28 18:40:30
○ 2017-09-30 06:05:12
○ 2026-02-21 09:51:56
○MXus-smtp-inbound-1.mimecast.com2016-07-26 → 2017-07-28 · 4 obs
● 2017-07-28 18:40:30
○ 2017-09-30 06:05:12
○ 2026-02-21 09:51:56
○MXus-smtp-inbound-2.mimecast.com2016-07-26 → 2017-07-28 · 4 obs
● 2017-07-28 18:40:30
○ 2017-09-30 06:05:12
○ 2026-02-21 09:51:56
○A13.223.106.622026-02-17 → 2026-02-21 · 2 obs
○ 2026-02-21 09:51:56
○A209.235.125.892016-07-26 → 2017-12-14 · 4 obs
● 2017-12-14 13:40:12
○ 2026-02-17 13:37:00
○ 2026-02-21 09:51:56
○A3.227.107.662026-02-17 → 2026-02-21 · 2 obs
○ 2026-02-21 09:51:56
●A34.197.4.1402026-02-17 → 2026-02-21 · 3 obs
● 2026-02-17 13:37:00
● 2026-02-21 09:51:56
●A52.202.117.142026-02-17 → 2026-02-21 · 3 obs
● 2026-02-17 13:37:00
● 2026-02-21 09:51:56
●A52.72.199.1562026-02-17 → 2026-02-21 · 3 obs
● 2026-02-17 13:37:00
● 2026-02-21 09:51:56
○A54.165.197.1952026-02-17 → 2026-02-21 · 2 obs
○ 2026-02-21 09:51:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| hmhscience.com | ns-552.awsdns-05.net, ns-287.awsdns-35.com, ns-1027.awsdns-00.org, ns-1787.awsdns-31.co.uk | 1 record |
✅ Authoritative Response
Server: 205.251.194.40
NS records: ns-552.awsdns-05.net, ns-287.awsdns-35.com, ns-1027.awsdns-00.org, ns-1787.awsdns-31.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hmhscience.com (unsigned zone)
⏱️ Timing
Total: 442ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 34.197.4.140, 52.202.117.14... |
| NS | 4 | ns-1027.awsdns-00.org, ns-1787.awsdns-31.co.uk... |
| SOA | 1 | ns-1787.awsdns-31.co.uk awsdns-hostmaste |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (ns-287.awsdns-35.com)
AI analysis
hmhscience.com is the parent of www.hmhscience.com.
hmhscience.com resolves to three IP numbers: 34.197.4.140, 52.72.199.156 and 52.202.117.14.
Other host names, for instance thelearningcompany.com, steckvaughn.harcourtachieve.com, www.eduplace.com, www.houghtonmifflinbooks.com and www.steck-vaughn.com share IP numbers with hmhscience.com.
hmhscience.com is delegated to four name servers: ns-287.awsdns-35.com, ns-552.awsdns-05.net, ns-1027.awsdns-00.org and ns-1787.awsdns-31.co.uk.
hmhscience.com shares some name servers with other domains, for example d155baydt0q4uh.cloudfront.net, anovate.net, kartriderdrift.com, contentsys.com.br and d3ktkapj4dfi3o.cloudfront.net.
These name servers are commonly used with the name servers ns-847.awsdns-41.net, ns-1292.awsdns-33.org, ns-1873.awsdns-42.co.uk, ns-94.awsdns-11.com, ns-1360.awsdns-42.org and ns-1961.awsdns-53.co.uk.
Host names with two IP numbers
Two IPs per host:
ns-287.awsdns-35.com points to 2600:9000:5301:1f00::1 and 205.251.193.31
ns-552.awsdns-05.net points to 2600:9000:5302:2800::1 and 205.251.194.40
ns-1027.awsdns-00.org points to 2600:9000:5304:300::1 and 205.251.196.3
ns-1787.awsdns-31.co.uk points to 2600:9000:5306:fb00::1 and 205.251.198.251