rubyconf.pt - dns.ninja

`rubyconf.pt`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:9cdd^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:db1^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.13.177^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.156.221^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amber.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a40^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c040^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amber.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2040^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amber.ns.cloudflare.com`
		A	108.162.192.64^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
		A	172.64.32.64^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
		A	173.245.58.64^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amber.ns.cloudflare.com`
NS	`brad.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b69^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c169^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brad.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2169^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brad.ns.cloudflare.com`
		A	108.162.193.105^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	172.64.33.105^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
		A	173.245.59.105^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brad.ns.cloudflare.com`
MX	`mx2.zohomail.com` ⭐
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zohomail.com`⁽²⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 include:zoho.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.13.177, 172.67.156.221
		IPv6 hints	2606:4700:3031::ac43:9cdd, 2606:4700:3034::6815:db1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=204, name=cloudflare-ech.com
SOA	`amber.ns.cloudflare.com`dns@cloudflare.com serial=2405054011

`pt`

	DNSSEC	🔒 Signed (DS record present)
	NS	`curiosity.dns.pt` ⭐
	NS	`a.dns.pt`
	NS	`b.dns.pt`
	NS	`c.dns.pt`
	NS	`d.dns.pt`
	NS	`e.dns.pt`
	NS	`g.dns.pt`
	NS	`h.dns.pt`
	NS	`ns.dns.br`
	NS	`ns2.nic.fr`
	SOA	`curiosity.dns.pt`request@dns.pt 2026-06-13 #42

Subdomains

2015.rubyconf.pt

Same first word

rubyconf.org

rubyconf.pt

rubyconf.eu

rubyconf.tw

rubyconf.com

rubyconf.lt

rubyconf.net

rubyconf.org.au

rubyconf.pk

DNS History

15 records (8 active, 7 former)

●NSamber.ns.cloudflare.com2026-03-02 → 2026-06-13 · 3 obs

○ 2018-11-11 23:47:10
● 2026-03-02 11:52:20
● 2026-06-13 20:47:08

●NSbrad.ns.cloudflare.com2026-03-02 → 2026-06-13 · 3 obs

○ 2018-11-11 23:47:10
● 2026-03-02 11:52:20
● 2026-06-13 20:47:08

○NSns1.linode.com2018-11-11 → 2018-11-11 · 3 obs

● 2018-11-11 23:47:10
○ 2026-03-02 11:52:20
○ 2026-06-13 20:47:08

○NSns2.linode.com2018-11-11 → 2018-11-11 · 3 obs

● 2018-11-11 23:47:10
○ 2026-03-02 11:52:20
○ 2026-06-13 20:47:08

○NSns3.linode.com2018-11-11 → 2018-11-11 · 3 obs

● 2018-11-11 23:47:10
○ 2026-03-02 11:52:20
○ 2026-06-13 20:47:08

○NSns4.linode.com2018-11-11 → 2018-11-11 · 3 obs

● 2018-11-11 23:47:10
○ 2026-03-02 11:52:20
○ 2026-06-13 20:47:08

○NSns5.linode.com2018-11-11 → 2018-11-11 · 3 obs

● 2018-11-11 23:47:10
○ 2026-03-02 11:52:20
○ 2026-06-13 20:47:08

●MXmx.zohomail.com2018-11-11 → 2026-06-13 · 2 obs

● 2018-11-11 23:47:10
● 2026-06-13 20:47:08

●MXmx2.zohomail.com2018-11-11 → 2026-06-13 · 2 obs

● 2018-11-11 23:47:10
● 2026-06-13 20:47:08

●A104.21.13.1772026-03-02 → 2026-06-13 · 3 obs

○ 2018-11-11 23:47:10
● 2026-03-02 11:52:20
● 2026-06-13 20:47:08

●A172.67.156.2212026-03-02 → 2026-06-13 · 3 obs

○ 2018-11-11 23:47:10
● 2026-03-02 11:52:20
● 2026-06-13 20:47:08

○A192.30.252.1532018-11-11 → 2018-11-11 · 3 obs

● 2018-11-11 23:47:10
○ 2026-03-02 11:52:20
○ 2026-06-13 20:47:08

○A192.30.252.1542018-11-11 → 2018-11-11 · 3 obs

● 2018-11-11 23:47:10
○ 2026-03-02 11:52:20
○ 2026-06-13 20:47:08

●A2606:4700:3031::ac43:9cdd2026-03-02 → 2026-06-13 · 3 obs

○ 2018-11-11 23:47:10
● 2026-03-02 11:52:20
● 2026-06-13 20:47:08

●A2606:4700:3034::6815:db12026-03-02 → 2026-06-13 · 3 obs

○ 2018-11-11 23:47:10
● 2026-03-02 11:52:20
● 2026-06-13 20:47:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	a.dns.pt, d.dns.pt, c.dns.pt, e.dns.pt...	-
rubyconf.pt	brad.ns.cloudflare.com, amber.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.105

NS records: brad.ns.cloudflare.com, amber.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubyconf.pt (unsigned zone)

⏱️ Timing

Total: 1082ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.156.221, 104.21.13.177`
AAAA	2	`2606:4700:3031::ac43:9cdd, 2606:4700:3034::6815:db1`
NS	2	`amber.ns.cloudflare.com, brad.ns.cloudflare.com`
MX	2	`mx.zohomail.com (pri: 10), mx2.zohomail.com (pri: 20)`
TXT	1	`v=spf1 include:zoho.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amber.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

rubyconf.pt is the parent zone for 2015.rubyconf.pt.

IP Addresses

rubyconf.pt points to four IP numbers: 104.21.13.177, 172.67.156.221, 2606:4700:3031::ac43:9cdd and 2606:4700:3034::6815:db1.

Additional host names — hashy0917.net, www.neurosilence-us.com, yourq.net and two others — share IP numbers with rubyconf.pt.

Name Servers

Two name servers handle the delegation for rubyconf.pt: amber.ns.cloudflare.com and brad.ns.cloudflare.com.

rubyconf.pt shares its name server setup with other domains, including fastpay.bg, greatoutdoors.ie, subvisual.co and two others.

rubyconf.pt partially shares its NS delegation with several other domains, including kajuaz.com, elbowbat.xyz, speakersclub.dk and two others.

These name servers regularly co-occur with the name servers emma.ns.cloudflare.com, amit.ns.cloudflare.com and neil.ns.cloudflare.com.

Host names with 6 IP numbers:

amber.ns.cloudflare.com resolves to 108.162.192.64, 172.64.32.64 and 173.245.58.64 among others, with 3 other IP addresses in total.

brad.ns.cloudflare.com resolves to 108.162.193.105, 172.64.33.105 and 173.245.59.105 among others, with 3 other IP addresses in total.

Mail Servers

rubyconf.pt has two mail servers: mx2.zohomail.com and mx.zohomail.com.

rubyconf.pt shares the same mail server setup as other domains, including eliteclass.ro, benchmarkpropertiesohio.com, cinnamongirlclinic.ca and two others.

rubyconf.pt shares mail servers — at least in part — with other domains, including decorstoff.com, gkan.com, rai-stat.com.tw and two others.

These mail servers are frequently paired with the mail servers mx3.zoho.com, mx2.zoho.com, mx.zoho.com and mx3.zohomail.com.

mx2.zohomail.com resolves to 204.141.33.44. mx.zohomail.com resolves to 204.141.43.44. Both host names point to a single IP number.