mathopenref.com - robtex.com
mathopenref.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 35.215.87.114🇺🇸 Google35.215.64.0/18 | ||||||
| PTR | 114.87.215.35.bc.googleusercontent.com | ||||||
| NS | ns1.siteground.net ⭐ | ||||||
| A | 75.2.77.104🇺🇸 Amazon75.2.64.0/20 | ||||||
| PTR | ac4b097dbd0dd6307.awsglobalaccelerator.com | ||||||
| NS | ns2.siteground.net | ||||||
| A | 99.83.229.113🇺🇸 Amazon99.83.224.0/20 | ||||||
| PTR | ac4b097dbd0dd6307.awsglobalaccelerator.com | ||||||
| MX | mx10.antispam.mailspamprotection.com ⭐ | ||||||
| A | 34.149.79.66🇺🇸 Google34.148.0.0/14 | ||||||
| PTR | 66.79.149.34.bc.googleusercontent.com | ||||||
| MX | mx20.antispam.mailspamprotection.com(20) | ||||||
| A | 34.120.156.61🇺🇸 Google34.120.0.0/14 | ||||||
| PTR | 61.156.120.34.bc.googleusercontent.com | ||||||
| MX | mx30.antispam.mailspamprotection.com(30) | ||||||
| A | 34.111.121.216🇺🇸 Google34.108.0.0/14 | ||||||
| PTR | 216.121.111.34.bc.googleusercontent.com | ||||||
| TXT | v=spf1 +a +mx +ip4:35.215.87.114 include:mathopenref.com.spf.auto.dnssmartho... | ||||||
| SOA | ns1.siteground.netdnsadmin@serv01.c13637.sgvps.net serial=100263 | ||||||
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 | ||||||
rank #43284 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #252,762
Same first word
mathopenref.org |
mathopenref.com |
Similar names
DNS History
14 records (6 active, 8 former)
○NSns1.c13637.sgvps.net2015-11-01 → 2017-02-12 · 4 obs
● 2015-11-01 05:17:24
● 2017-02-12 20:42:20
○ 2026-02-26 19:28:20
○NSns1.lunarservers.com2015-08-17 → 2015-08-17 · 3 obs
○ 2015-11-01 05:17:24
○ 2026-02-26 19:28:20
●NSns1.siteground.net2026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 19:28:20
○NSns2.c13637.sgvps.net2015-11-01 → 2017-02-12 · 4 obs
● 2015-11-01 05:17:24
● 2017-02-12 20:42:20
○ 2026-02-26 19:28:20
○NSns2.lunarservers.com2015-08-17 → 2015-08-17 · 3 obs
○ 2015-11-01 05:17:24
○ 2026-02-26 19:28:20
●NSns2.siteground.net2026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 19:28:20
○MXmathopenref.com2015-08-17 → 2017-02-12 · 3 obs
● 2017-02-12 20:42:20
○ 2026-02-26 19:28:20
●MXmx10.antispam.mailspamprotection.com2026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 19:28:20
●MXmx20.antispam.mailspamprotection.com2026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 19:28:20
●MXmx30.antispam.mailspamprotection.com2026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 19:28:20
○A23.19.131.1702015-08-17 → 2015-08-17 · 3 obs
○ 2017-02-06 02:31:40
○ 2026-02-26 19:28:20
●A35.215.87.1142026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 19:28:20
○A37.60.239.432015-11-01 → 2017-02-12 · 4 obs
● 2015-11-01 05:17:24
● 2017-02-12 20:42:20
○ 2026-02-26 19:28:20
○A74.50.19.92015-08-17 → 2015-08-17 · 3 obs
○ 2015-11-01 05:17:24
○ 2026-02-26 19:28:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| mathopenref.com | ns1.siteground.net, ns2.siteground.net | - |
✅ Authoritative Response
Server: 75.2.77.104
NS records: ns1.siteground.net, ns2.siteground.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathopenref.com (unsigned zone)
⏱️ Timing
Total: 224ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 35.215.87.114 |
| NS | 2 | ns2.siteground.net, ns1.siteground.net |
| MX | 3 | mx20.antispam.mailspamprotection.com (pr, mx30.antispam.mailspamprotection.com (pr... |
| TXT | 1 | v=spf1 +a +mx +ip4:35.215.87.114 includ |
| SOA | 1 | ns1.siteground.net dnsadmin.serv01.c1363 |
AI analysis
mathopenref.com resolves to a single IP address: 35.215.87.114.
Other host names such as teffio.com, c13637.sgvps.net, mail.c13637.sgvps.net and 114.87.215.35.bc.googleusercontent.com share IP numbers with mathopenref.com.
mathopenref.com's delegation uses two name servers, ns1.siteground.net and ns2.siteground.net.
mathopenref.com shares the same name server setup as other domains, for example masonerie.com, jeanetteortega.com, jbjchillers.com, isdae.com and creativekitchensandbedrooms.com.
mathopenref.com at least partially shares name servers with other domains, including trashdaddy.net, gemvision.co.uk, figaromusicstudios.com, ecohouse.ch and mmsgroup.net.au.
Host names with a single IP:
ns1.siteground.net points to 75.2.77.104.
ns2.siteground.net points to 99.83.229.113.
mathopenref.com is handled by three mail servers: mx10.antispam.mailspamprotection.com, mx20.antispam.mailspamprotection.com and mx30.antispam.mailspamprotection.com.
The mail servers for mathopenref.com are shared with other domains, for instance opusmusivum.gr, janerichlovsky.com, pondliner.org, acmehaiti.org and somersetscoutcaving.org.
Hostnames with a single IP:
mx10.antispam.mailspamprotection.com points to: 34.149.79.66.
mx20.antispam.mailspamprotection.com points to: 34.120.156.61.
mx30.antispam.mailspamprotection.com points to: 34.111.121.216.