certstack.io - dns.ninja
certstack.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:baeeCloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3031::6815:255Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.2.85Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.186.238Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | gina.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a75Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 2803:f800:50::6ca2:c075Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| A | 2a06:98c1:50::ac40:2075Cloudflare2a06:98c1:50::/45 | ||||||
| A | 108.162.192.117Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.32.117Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 173.245.58.117Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | zod.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.2.85, 172.67.186.238 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:baee, 2606:4700:3031::6815:255 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com | ||||||
| SOA | gina.ns.cloudflare.comdns@cloudflare.com serial=2415274589 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1792200449 | ||||||
Same first word
certstack.fyi |
certstack.io |
certstack.co.uk |
certstack.app |
certstack.pro |
certstack.com |
certstack.me |
certstack.dev |
certstack.org |
Similar names
cracktest.com.au |
cracktest.ph |
stackcert.co |
testcrack.online |
cracktest.es |
cracktest.xyz |
stackcert.com |
cracktest.pk |
testcrack.com |
cracktest.ai |
cracktest.in |
cracktest.cn |
DNS History
10 records (6 active, 4 former)
●NSgina.ns.cloudflare.com2026-08-31 → 2026-10-17 · 2 obs
● 2026-08-31 10:13:02
● 2026-10-17 01:42:00
● 2026-10-17 01:42:00
●NSzod.ns.cloudflare.com2026-08-31 → 2026-10-17 · 2 obs
● 2026-08-31 10:13:02
● 2026-10-17 01:42:00
● 2026-10-17 01:42:00
●A104.21.2.852026-09-24 → 2026-10-17 · 3 obs
○ 2026-08-31 10:13:02
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
●A172.67.186.2382026-09-24 → 2026-10-17 · 3 obs
○ 2026-08-31 10:13:02
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
○A188.114.96.02026-08-31 → 2026-08-31 · 3 obs
● 2026-08-31 10:13:02
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
○A188.114.97.02026-08-31 → 2026-08-31 · 3 obs
● 2026-08-31 10:13:02
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
●A2606:4700:3030::ac43:baee2026-09-24 → 2026-10-17 · 3 obs
○ 2026-08-31 10:13:02
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
●A2606:4700:3031::6815:2552026-09-24 → 2026-10-17 · 3 obs
○ 2026-08-31 10:13:02
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
● 2026-09-24 16:10:40
● 2026-10-17 01:42:00
○A2a06:98c1:3120::2026-08-31 → 2026-08-31 · 3 obs
● 2026-08-31 10:13:02
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
○A2a06:98c1:3121::2026-08-31 → 2026-08-31 · 3 obs
● 2026-08-31 10:13:02
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
○ 2026-09-24 16:10:40
○ 2026-10-17 01:42:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | c0.nic.io, a2.nic.io, a0.nic.io, b0.nic.io | 8 records |
| certstack.io | gina.ns.cloudflare.com, zod.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.32.117
NS records: gina.ns.cloudflare.com, zod.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certstack.io (unsigned zone)
⏱️ Timing
Total: 1466ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.2.85, 172.67.186.238 |
| AAAA | 2 | 2606:4700:3031::6815:255, 2606:4700:3030::ac43:baee |
| NS | 2 | gina.ns.cloudflare.com, zod.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | gina.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (c0.nic.io, c0.nic.io, a2.nic.io...)
Analysis
IP Addresses
certstack.io points to the four IP addresses 104.21.2.85, 172.67.186.238, 2606:4700:3030::ac43:baee and 2606:4700:3031::6815:255.
Name Servers
certstack.io uses two name servers for its delegation: gina.ns.cloudflare.com and zod.ns.cloudflare.com.
Host names resolving to 6 IP numbers:
Hostname gina.ns.cloudflare.com directs to 108.162.192.117, 172.64.32.117 and 173.245.58.117 along with 3 other IP addresses.