stackup.nl - robtex.com
stackup.nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3036::6815:4a54🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:9c67🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.74.84Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.156.103🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | alec.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b3b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alec.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c13b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | alec.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:213b🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | alec.ns.cloudflare.com | ||||||
| A | 108.162.193.59🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alec.ns.cloudflare.com | ||||||
| A | 172.64.33.59🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alec.ns.cloudflare.com | ||||||
| A | 173.245.59.59🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | alec.ns.cloudflare.com | ||||||
| NS | carlane.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2619🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carlane.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c219🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | carlane.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2219🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | carlane.ns.cloudflare.com | ||||||
| A | 108.162.194.25🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carlane.ns.cloudflare.com | ||||||
| A | 162.159.38.25Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carlane.ns.cloudflare.com | ||||||
| A | 172.64.34.25🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carlane.ns.cloudflare.com | ||||||
| MX | stackup-nl.mail.protection.outlook.com ⭐ | ||||||
| TXT | v=spf1 include:spf.protection.outlook.com include:spf.afas.online include:spf... | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.74.84, 172.67.156.103 | ||||||
| IPv6 hints | 2606:4700:3036::6815:4a54, 2606:4700:3037::ac43:9c67 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=184, name=cloudflare-ech.com | ||||||
| SOA | alec.ns.cloudflare.comdns@cloudflare.com serial=2415473456 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-09-25 10:00:01 +0000 (EPOCH 1790330401) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-09-25 #20 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
7 records (7 active, 0 former)
●NSalec.ns.cloudflare.com2026-09-19 → 2026-09-25 · 2 obs
● 2026-09-25 10:36:18
●NScarlane.ns.cloudflare.com2026-09-19 → 2026-09-25 · 2 obs
● 2026-09-25 10:36:18
●MXstackup-nl.mail.protection.outlook.com2026-09-19 → 2026-09-25 · 2 obs
● 2026-09-25 10:36:18
●A104.21.74.842026-09-19 → 2026-09-25 · 2 obs
● 2026-09-25 10:36:18
●A172.67.156.1032026-09-19 → 2026-09-25 · 2 obs
● 2026-09-25 10:36:18
●A2606:4700:3036::6815:4a542026-09-19 → 2026-09-25 · 2 obs
● 2026-09-25 10:36:18
●A2606:4700:3037::ac43:9c672026-09-19 → 2026-09-25 · 2 obs
● 2026-09-25 10:36:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns1.dns.nl, ns3.dns.nl, ns4.dns.nl | - |
| stackup.nl | alec.ns.cloudflare.com, carlane.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.59
NS records: alec.ns.cloudflare.com, carlane.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 227ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.74.84, 172.67.156.103 |
| AAAA | 2 | 2606:4700:3036::6815:4a54, 2606:4700:3037::ac43:9c67 |
| NS | 2 | alec.ns.cloudflare.com, carlane.ns.cloudflare.com |
| MX | 1 | stackup-nl.mail.protection.outlook.com ( |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | alec.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
stackup.nl has four IP addresses: 104.21.74.84, 172.67.156.103, 2606:4700:3036::6815:4a54 and 2606:4700:3037::ac43:9c67.
puc.au, swisscoalition.ch, novahspark.life plus two other host names have IP numbers in common with stackup.nl.
Name Servers
The NS records for stackup.nl delegate to alec.ns.cloudflare.com and carlane.ns.cloudflare.com.
The name server configuration of stackup.nl is shared with other domains, for instance meridian-v2.pages.dev, zycasoru.workers.dev, mamji.workers.dev and two others.
stackup.nl shares at least some of its name servers with other domains, including hyperbeam.us, x91x87.top, dominik-ded.workers.dev and two others.
These name servers are frequently seen alongside the name servers crystal.ns.cloudflare.com.
Hosts with 6 IP addresses each:
alec.ns.cloudflare.com maps to 108.162.193.59, 172.64.33.59, 173.245.59.59 and 3 additional IP addresses.
carlane.ns.cloudflare.com maps to 108.162.194.25, 162.159.38.25, 172.64.34.25 and 3 additional IP addresses.
Mail Servers
stackup.nl uses one mail server — stackup-nl.mail.protection.outlook.com.