chessfocus.com - robtex.com
chessfocus.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.231.249.138🇺🇸 VIVIO192.231.249.0/24 Spectrum Proxy Resgistration | ||||||
| PTR | echeveria.viviotech.net | ||||||
| NS | echeveria.viviotech.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 192.231.249.138🇺🇸 VIVIO192.231.249.0/24 Spectrum Proxy Resgistration | ||||||
| PTR | echeveria.viviotech.net | ||||||
| NS | ns1.viviotech.net | ||||||
| A | 208.77.208.2🇺🇸 VIVIO208.77.208.0/22 Viviotech (AS23265 customer) route | ||||||
| PTR | life.viviotech.net | ||||||
| PTR | ns1.viviotech.net | ||||||
| NS | ns2.viviotech.net | ||||||
| A | 208.77.208.3🇺🇸 VIVIO208.77.208.0/22 Viviotech (AS23265 customer) route | ||||||
| PTR | ns2.viviotech.net | ||||||
| PTR | pine.viviotech.net | ||||||
| MX | mail.chessfocus.com ⭐ | ||||||
| A | 192.231.249.138🇺🇸 VIVIO192.231.249.0/24 Spectrum Proxy Resgistration | ||||||
| PTR | echeveria.viviotech.net | ||||||
| TXT | v=spf1 a mx a:chessfocus.com ip4:192.231.249.138 ?all | ||||||
| TXT | google-site-verification=pJXiM2pitlkUnr94km3izbOzzDjfj6qwULlYslQWNy8 | ||||||
| SOA | echeveria.viviotech.netroot@echeveria.viviotech.net serial=1451633880 | ||||||
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=1777051416 | ||||||
Subdomains
mail.chessfocus.com |
Same first word
chessfocus.com |
DNS History
18 records (5 active, 13 former)
●NSecheveria.viviotech.net2016-02-23 → 2026-04-24 · 3 obs
● 2016-02-23 04:12:48
● 2026-04-24 17:34:38
○NSns.chessfocus.com2015-06-23 → 2015-06-23 · 4 obs
● 2015-06-23 23:55:32
○ 2015-11-10 18:25:22
○ 2026-04-24 17:34:38
●NSns1.viviotech.net2015-11-10 → 2026-04-24 · 5 obs
● 2015-11-10 18:25:22
○ 2016-02-23 04:12:48
● 2018-05-26 22:19:10
● 2026-04-24 17:34:38
●NSns2.viviotech.net2015-11-10 → 2026-04-24 · 3 obs
● 2015-11-10 18:25:22
● 2026-04-24 17:34:38
○NSns33.1and1.co.uk2008-03-17 → 2008-03-17 · 3 obs
○ 2015-06-23 23:55:32
○ 2026-04-24 17:34:38
○NSns34.1and1.co.uk2008-03-17 → 2008-03-17 · 3 obs
○ 2015-06-23 23:55:32
○ 2026-04-24 17:34:38
○MXalt1.aspmx.l.google.com2015-06-23 → 2018-05-26 · 5 obs
● 2015-06-23 23:55:32
● 2018-05-26 22:19:10
○ 2026-03-26 17:38:46
○ 2026-04-24 17:34:38
○MXalt2.aspmx.l.google.com2015-06-23 → 2018-05-26 · 6 obs
● 2015-06-23 23:55:32
○ 2015-11-10 18:25:22
● 2018-05-26 22:19:10
○ 2026-03-26 17:38:46
○ 2026-04-24 17:34:38
○MXalt3.aspmx.l.google.com2015-11-10 → 2018-05-26 · 5 obs
● 2015-11-10 18:25:22
● 2018-05-26 22:19:10
○ 2026-03-26 17:38:46
○ 2026-04-24 17:34:38
○MXalt4.aspmx.l.google.com2015-06-23 → 2018-05-26 · 5 obs
● 2015-06-23 23:55:32
● 2018-05-26 22:19:10
○ 2026-03-26 17:38:46
○ 2026-04-24 17:34:38
○MXaspmx.l.google.com2015-06-23 → 2018-05-26 · 5 obs
● 2015-06-23 23:55:32
● 2018-05-26 22:19:10
○ 2026-03-26 17:38:46
○ 2026-04-24 17:34:38
●MXmail.chessfocus.com2026-03-26 → 2026-04-24 · 3 obs
● 2026-03-26 17:38:46
● 2026-04-24 17:34:38
○MXmx00.1and1.co.uk2008-03-17 → 2008-03-17 · 3 obs
○ 2015-06-23 23:55:32
○ 2026-04-24 17:34:38
○MXmx01.1and1.co.uk2008-03-17 → 2008-03-17 · 3 obs
○ 2015-06-23 23:55:32
○ 2026-04-24 17:34:38
○A162.217.169.982015-11-10 → 2015-11-10 · 4 obs
● 2015-11-10 18:25:22
○ 2016-02-23 04:12:48
○ 2026-04-24 17:34:38
○A172.245.29.702015-06-23 → 2015-06-23 · 4 obs
● 2015-06-23 23:55:32
○ 2015-11-10 18:25:22
○ 2026-04-24 17:34:38
●A192.231.249.1382016-02-23 → 2026-04-24 · 3 obs
● 2016-02-23 04:12:48
● 2026-04-24 17:34:38
○A82.165.100.1862008-03-17 → 2008-03-17 · 3 obs
○ 2015-06-23 23:55:32
○ 2026-04-24 17:34:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net... | - |
| chessfocus.com | ns1.viviotech.net, ns2.viviotech.net | - |
✅ Authoritative Response
Server:208.77.208.3
NS records: ns1.viviotech.net, ns2.viviotech.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chessfocus.com (unsigned zone)
⏱️ Timing
Total: 595ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.231.249.138 |
| NS | 3 | echeveria.viviotech.net, ns1.viviotech.net... |
| MX | 1 | mail.chessfocus.com (pri: 5) |
| TXT | 2 | v=spf1 a mx a:chessfocus.com ip4:192.231, google-site-verification=pJXiM2pitlkUnr9 |
| SOA | 1 | echeveria.viviotech.net root.echeveria.v |
Analysis
Hierarchy
The parent of mail.chessfocus.com is chessfocus.com.
IP Addresses
chessfocus.com points to a single IP address: 192.231.249.138.
Other host names such as wmass-chess.us, mail.chessfocus.com, conferenceengine.com, mail.tensionmask.com and waterbonder.com share IPs with chessfocus.com.
Name Servers
chessfocus.com is delegated to three name servers: echeveria.viviotech.net, ns1.viviotech.net and ns2.viviotech.net.
chessfocus.com at least partially shares name servers with other domains, for example theworldbyroad.com, 169.217.162.in-addr.arpa, forevercruising.com, adreflex.net and appaloosaart.com.
these name servers are commonly used with the following name servers: ns20.viviotech.net, ns21.viviotech.net, ns22.viviotech.net, sweet-silver-alfalfa.viviotech.us, vt1.itisdesign.com, ns3.viviotech.net, nice-ochre-foxglove.viviotech.us, protective-coral-giraffe.viviotech.us, neat-cerise-quoll.viviotech.us and savory-viridian-huemul.viviotech.us.
Host names with a single IP address:
echeveria.viviotech.net resolves to 192.231.249.138.
ns1.viviotech.net resolves to 208.77.208.2.
ns2.viviotech.net resolves to 208.77.208.3.
Mail Servers
The mail.chessfocus.com mail server handles chessfocus.com.
mail.chessfocus.com points to a single IP number: 192.231.249.138.