crowscience.com - dns.ninja
crowscience.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.189.157.172🇺🇸 hostus216.189.157.0/24 HostUS IP Space | ||||||
| NS | ns-uk.topdns.com ⭐ | ||||||
| A | 43.245.50.34🇺🇸 VR-HOSTED43.245.50.0/24 NetActuate, Inc | ||||||
| PTR | smtp02.topdns.com | ||||||
| NS | ns-canada.topdns.com | ||||||
| A | 185.7.78.112🇳🇱 NFORCE185.7.78.0/24 Route object for 185.7.78.0/24 | ||||||
| PTR | smtp04.topdns.com | ||||||
| NS | ns-usa.topdns.com | ||||||
| A | 143.198.68.197🇺🇸 DIGITALOCEAN143.198.64.0/20 DigitalOcean | ||||||
| A | 161.35.225.48🇺🇸 DIGITALOCEAN161.35.224.0/20 DigitalOcean | ||||||
| MX | smtp02.topdns.com ⭐ | ||||||
| A | 43.245.50.34🇺🇸 VR-HOSTED43.245.50.0/24 NetActuate, Inc | ||||||
| PTR | smtp02.topdns.com | ||||||
| MX | smtp03.topdns.com ⭐ | ||||||
| A | 185.40.234.25🇩🇪 VR-HOSTED185.40.234.0/24 NetActuate, Inc | ||||||
| PTR | smtp03.topdns.com | ||||||
| MX | smtp04.topdns.com ⭐ | ||||||
| A | 185.7.78.112🇳🇱 NFORCE185.7.78.0/24 Route object for 185.7.78.0/24 | ||||||
| PTR | smtp04.topdns.com | ||||||
| TXT | v=spf1 include:spf1.topdns.com include:spf2.topdns.com ?all | ||||||
| SOA | ns-uk.topdns.comhostmaster@topdns.com 2016-04-06 #8 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1783139566 | ||||||
Same first word
crowscience.com |
DNS History
14 records (7 active, 7 former)
●NSns-canada.topdns.com2016-07-21 → 2026-07-04 · 3 obs
● 2016-07-21 18:44:46
● 2026-07-04 04:55:44
●NSns-uk.topdns.com2016-07-21 → 2026-07-04 · 3 obs
● 2016-07-21 18:44:46
● 2026-07-04 04:55:44
●NSns-usa.topdns.com2016-07-21 → 2026-07-04 · 3 obs
● 2016-07-21 18:44:46
● 2026-07-04 04:55:44
○NSns1.afraid.org2015-08-14 → 2016-03-16 · 4 obs
● 2016-03-16 10:15:34
○ 2016-07-21 18:44:46
○ 2026-07-04 04:55:44
○NSns2.afraid.org2015-08-14 → 2016-03-16 · 4 obs
● 2016-03-16 10:15:34
○ 2016-07-21 18:44:46
○ 2026-07-04 04:55:44
○NSns3.afraid.org2015-08-14 → 2016-03-16 · 4 obs
● 2016-03-16 10:15:34
○ 2016-07-21 18:44:46
○ 2026-07-04 04:55:44
○NSns4.afraid.org2015-08-14 → 2016-03-16 · 4 obs
● 2016-03-16 10:15:34
○ 2016-07-21 18:44:46
○ 2026-07-04 04:55:44
○MXsmtp01.topdns.com2016-07-21 → 2026-05-20 · 6 obs
● 2026-04-12 14:27:42
○ 2026-04-12 18:42:00
● 2026-05-20 07:30:56
○ 2026-07-01 23:28:36
○ 2026-07-04 04:55:44
●MXsmtp02.topdns.com2016-07-21 → 2026-07-04 · 2 obs
● 2026-07-04 04:55:44
●MXsmtp03.topdns.com2016-07-21 → 2026-07-04 · 2 obs
● 2026-07-04 04:55:44
●MXsmtp04.topdns.com2016-07-21 → 2026-07-04 · 2 obs
● 2026-07-04 04:55:44
○MXsmtp09.topdns.com2016-07-21 → 2026-05-20 · 6 obs
● 2026-04-12 14:27:42
○ 2026-04-12 18:42:00
● 2026-05-20 07:30:56
○ 2026-07-01 23:28:36
○ 2026-07-04 04:55:44
○A199.19.116.2022015-08-14 → 2016-03-16 · 4 obs
● 2016-03-16 10:15:34
○ 2016-07-21 18:44:46
○ 2026-07-04 04:55:44
●A216.189.157.1722016-07-21 → 2026-07-04 · 3 obs
● 2016-07-21 18:44:46
● 2026-07-04 04:55:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| crowscience.com | ns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com | 4 records |
✅ Authoritative Response
Server:143.198.68.197
NS records: ns-canada.topdns.com, ns-usa.topdns.com, ns-uk.topdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crowscience.com (unsigned zone)
⏱️ Timing
Total: 420ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.189.157.172 |
| NS | 3 | ns-canada.topdns.com, ns-usa.topdns.com... |
| MX | 3 | smtp03.topdns.com (pri: 0), smtp04.topdns.com (pri: 0)... |
| TXT | 1 | v=spf1 include:spf1.topdns.com include:s |
| SOA | 1 | ns-uk.topdns.com hostmaster.topdns.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns-canada.topdns.com, ns-usa.topdns.com, ns-usa.topdns.com...)
Analysis
IP Addresses
crowscience.com directs to one IP number, which is 216.189.157.172.
Name Servers
crowscience.com carries NS records delegating to ns-canada.topdns.com, ns-uk.topdns.com and ns-usa.topdns.com.
crowscience.com shares at least some of its name servers with other domains, including ibf.us, licksomecandy.com, trucs-de-nana.be and two others.
Hosts with two IP numbers each:
ns-usa.topdns.com resolves to two addresses: 143.198.68.197 and 161.35.225.48.
Hosts that resolve to one IP address:
The hostname ns-canada.topdns.com resolves to 185.7.78.112.
The hostname ns-uk.topdns.com resolves to 43.245.50.34.
Mail Servers
crowscience.com is handled by three mail servers: smtp02.topdns.com, smtp03.topdns.com and smtp04.topdns.com.
crowscience.com shares at least some of its mail servers with other domains — for example server-security-system.com, proxy-test.com, ceramikabona.pl and two more.
smtp02.topdns.com points to 43.245.50.34; smtp03.topdns.com points to 185.40.234.25; smtp04.topdns.com points to 185.7.78.112 — each hostname maps to exactly one IP address.