stdopen.com - dns.ninja
stdopen.com
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=1794638196 | ||||||
Same first word
stdopen.com |
Similar names
Previous names
Next names
DNS History
6 records (6 active, 0 former)
●NScyril.dnspod.net2026-09-25 → 2026-11-14 · 2 obs
● 2026-11-14 07:14:06
●NSella.dnspod.net2026-09-25 → 2026-11-14 · 2 obs
● 2026-11-14 07:14:06
●A171.223.208.1362026-09-25 → 2026-11-14 · 2 obs
● 2026-11-14 07:14:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| stdopen.com | cyril.dnspod.net, ella.dnspod.net | - |
✅ Authoritative Response
Server:2402:4e00:111:fff::c
NS records: cyril.dnspod.net, ella.dnspod.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for stdopen.com (unsigned zone)
⏱️ Timing
Total: 3236ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 171.223.208.136 |
| NS | 2 | cyril.dnspod.net, ella.dnspod.net |
| MX | 3 | mx1.feishu.cn (pri: 1), mx2.feishu.cn (pri: 5)... |
| TXT | 2 | v=spf1 +include:_netblocks.m.feishu.cn -, verification-code-site-App_feishu=gleK9A |
| SOA | 1 | cyril.dnspod.net freednsadmin.dnspod.com |
Analysis
IP Addresses
stdopen.com directs to one IP number, which is 171.223.208.136.
Name Servers
stdopen.com is served by two delegated name servers, cyril.dnspod.net and ella.dnspod.net.
stdopen.com has the same name server delegation as a number of other domains, such as touma-kazusa.com, blyn.cn, acupoint.cloud and two more.
Host names resolving to 6 IP numbers:
cyril.dnspod.net carries IP addresses 1.12.0.4, 1.14.119.35 and 111.13.13.35, with 3 other addresses beyond those.
ella.dnspod.net carries IP addresses 1.12.0.1, 1.13.76.35 and 36.155.149.35, with 3 other addresses beyond those.
Mail Servers
stdopen.com is handled by three mail servers: mx1.feishu.cn, mx2.feishu.cn and mx3.feishu.cn.
stdopen.com shares at least some of its mail servers with other domains — for example jar.fm, practice-book.com, ongineer.cn and two more.
Hosts with three IP address records:
mx3.feishu.cn resolves to three addresses: 52.220.106.220, 101.126.58.225 and 122.14.229.0.
Hosts with two IP numbers each:
mx2.feishu.cn maps to two IP addresses — 101.126.58.225 and 122.14.229.0.
Hosts that resolve to one IP address:
mx1.feishu.cn points to the IP address 52.220.106.220.
These two host names — mx3.feishu.cn and mx1.feishu.cn — each point to 52.220.106.220 IP addresses.
These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 101.126.58.225 IP addresses.
These two host names — mx3.feishu.cn and mx2.feishu.cn — each point to 122.14.229.0 IP addresses.