alsa-project.org - robtex.com
alsa-project.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.14.194.44🇺🇸 CONTABO45.14.194.0/24 | ||||||
| PTR | alsa1.perex.cz | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | alsa1.perex.cz ⭐ | ||||||
| A | 45.14.194.44🇺🇸 CONTABO45.14.194.0/24 | ||||||
| PTR | alsa1.perex.cz | ||||||
| MX | alsa0.perex.cz(50) | ||||||
| A | 77.48.224.243🇨🇿 VODAFONE-CZ-AS77.48.128.0/17 Vodafone Czech Republic a.s. | ||||||
| PTR | alsa0.perex.cz | ||||||
| TXT | v=spf1 mx mx:perex.cz -all | ||||||
| TXT | google-site-verification=snu7nBLyu5c2to8NyHpAZkKP8sJDMXdFqetsn7Cg0zw | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2025-07-21 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1776046407 | ||||||
rank #2483 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #74,381
Subdomains
bugtrack.alsa-project.org |
www.alsa-project.org |
alsa.alsa-project.org |
mailman.alsa-project.org |
wiki.alsa-project.org |
Same first word
alsa-project.org |
DNS History
7 records (5 active, 2 former)
●MXalsa1.perex.cz2021-03-04 → 2026-04-13 · 3 obs
● 2021-03-04 09:01:52
● 2026-04-13 02:42:32
○A207.180.221.2012021-03-04 → 2021-03-04 · 4 obs
● 2021-03-04 09:01:52
○ 2026-02-15 21:33:58
○ 2026-04-13 02:42:32
●A45.14.194.442026-02-15 → 2026-04-13 · 3 obs
● 2026-02-15 21:33:58
● 2026-04-13 02:42:32
○A77.48.224.2432015-08-04 → 2017-03-24 · 4 obs
● 2017-03-24 17:24:34
○ 2021-03-04 09:01:52
○ 2026-04-13 02:42:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| alsa-project.org | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alsa-project.org (unsigned zone)
⏱️ Timing
Total: 1616ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.14.194.44 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 2 | alsa1.perex.cz (pri: 10), alsa0.perex.cz (pri: 50) |
| TXT | 2 | v=spf1 mx mx:perex.cz -all, google-site-verification=snu7nBLyu5c2to8 |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
Hierarchy
alsa-project.org is a parent of bugtrack.alsa-project.org, www.alsa-project.org, alsa.alsa-project.org, mailman.alsa-project.org and wiki.alsa-project.org.
IP Addresses
alsa-project.org points to a single IP number: 45.14.194.44.
Other host names, for instance www.alsa-project.org, alsa.alsa-project.org, mailman.alsa-project.org, alsa1.perex.cz and wiki.alsa-project.org share IP numbers with alsa-project.org.
Name Servers
Delegation for alsa-project.org rests with two name servers, ns2.web4u.cz and ns.web4u.cz.
alsa-project.org shares the same name server setup as other domains, including pazdernik.net, bum.cz, specola.cz, giganti.cz and interskiregion.eu.
Host names with two IP numbers: ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12; ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241.
Mail Servers
alsa-project.org is handled by two mail servers: alsa0.perex.cz and alsa1.perex.cz.
Host names with one IP number: alsa0.perex.cz points to 77.48.224.243; alsa1.perex.cz points to 45.14.194.44.