rubyconf.tw - dns.ninja
rubyconf.tw
tw
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.tw ⭐ | ||||||
| NS | anytld.apnic.net ⚠️ Not in parent delegation | ||||||
| NS | b.dns.tw | ||||||
| NS | c.dns.tw | ||||||
| NS | d.dns.tw | ||||||
| NS | e.dns.tw | ||||||
| NS | f.dns.tw | ||||||
| NS | g.dns.tw | ||||||
| NS | h.dns.tw | ||||||
| SOA | a.dns.twsnw@twnic.net.tw 2011-02-17 #3 | ||||||
Same first word
rubyconf.org.au |
rubyconf.pk |
rubyconf.org |
rubyconf.pt |
rubyconf.eu |
rubyconf.tw |
rubyconf.com |
rubyconf.lt |
rubyconf.net |
DNS History
10 records (8 active, 2 former)
●NSbrit.ns.cloudflare.com2015-06-20 → 2026-06-14 · 2 obs
● 2026-06-14 04:08:02
●NSjustin.ns.cloudflare.com2015-06-20 → 2026-06-14 · 2 obs
● 2026-06-14 04:08:02
●MXalt1.aspmx.l.google.com2015-06-20 → 2026-06-14 · 2 obs
● 2026-06-14 04:08:02
●MXaspmx.l.google.com2015-06-20 → 2026-06-14 · 2 obs
● 2026-06-14 04:08:02
●A104.21.12.1472026-02-28 → 2026-06-14 · 3 obs
● 2026-02-28 06:34:42
● 2026-06-14 04:08:02
●A172.67.152.1402026-02-28 → 2026-06-14 · 3 obs
● 2026-02-28 06:34:42
● 2026-06-14 04:08:02
○A23.99.125.682015-06-20 → 2015-06-20 · 3 obs
○ 2015-10-28 09:19:24
○ 2026-06-14 04:08:02
●A2606:4700:3030::6815:c932026-02-28 → 2026-06-14 · 3 obs
● 2026-02-28 06:34:42
● 2026-06-14 04:08:02
●A2606:4700:3030::ac43:988c2026-02-28 → 2026-06-14 · 3 obs
● 2026-02-28 06:34:42
● 2026-06-14 04:08:02
○A60.250.121.1942015-10-28 → 2016-04-07 · 5 obs
● 2015-10-28 09:19:24
● 2016-04-07 13:57:42
○ 2026-02-28 06:34:42
○ 2026-06-14 04:08:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tw | a.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw... | - |
| rubyconf.tw | brit.ns.cloudflare.com, justin.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.187
NS records: brit.ns.cloudflare.com, justin.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rubyconf.tw (unsigned zone)
⏱️ Timing
Total: 1010ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.12.147, 172.67.152.140 |
| AAAA | 2 | 2606:4700:3030::6815:c93, 2606:4700:3030::ac43:988c |
| NS | 2 | brit.ns.cloudflare.com, justin.ns.cloudflare.com |
| MX | 2 | aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20) |
| TXT | 1 | v=spf1 a mx include:spf.mail.5xruby.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | brit.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
rubyconf.tw points to four IP numbers: 104.21.12.147, 172.67.152.140, 2606:4700:3030::6815:c93 and 2606:4700:3030::ac43:988c.
Among the host names that share IP numbers with rubyconf.tw are tanuchu.co.il, npj.cc, 57jfw.com and two others.
Name Servers
rubyconf.tw uses two name servers for its delegation: brit.ns.cloudflare.com and justin.ns.cloudflare.com.
rubyconf.tw has the same name server delegation as a number of other domains, such as xn--badekbe-ixa.dk, rudd.org, wi-z.com and two more.
At least some of rubyconf.tw's name servers are shared with other domains, for example 385446.com, starpetal.sbs, scratchingthepitch.com and two more.
Host names resolving to 6 IP numbers:
Hostname brit.ns.cloudflare.com directs to 108.162.192.78, 172.64.32.78 and 173.245.58.78 along with 3 other IP addresses.
Hostname justin.ns.cloudflare.com directs to 108.162.193.187, 172.64.33.187 and 173.245.59.187 along with 3 other IP addresses.
Mail Servers
The MX records for rubyconf.tw point to two mail servers: aspmx.l.google.com and alt1.aspmx.l.google.com.
rubyconf.tw has the same mail server arrangement as a number of other domains, for example pharmamarketresearchconference.com, froam.com, aeluma.com and two more.
rubyconf.tw shares at least some of its mail servers with other domains — for example ns500758.ns500698.ns500698.ns500759.ns500698.ns500736.ns500735.ns500736.ns500698.ns500735.ns500698.ns500686.ns500576.ns500619.ns500576.trackreceptor.com, ns500742.ns500754.ns500754.ns500731.ns500742.ns500678.ns500678.ns500671.ns500671.ns500671.ns500131.lustychickser.com, ns500754.ns500731.ns500742.ns500742.ns500742.ns500704.ns500704.ns500704.ns500688.ns500704.ns500649.ns500666.ns500666.ns500153.tenderladiesbz.com and two more.
It is common to find these mail servers paired with mail servers alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and 4 more.
The two host names aspmx.l.google.com and alt1.aspmx.l.google.com each have a pair of IP addresses: aspmx.l.google.com has 172.253.63.27 and 2607:f8b0:4004:c1b::1b, and alt1.aspmx.l.google.com has 108.177.123.26 and 2800:3f0:4003:c0f::1a.