contextalpha.com - robtex.com
contextalpha.com
| DNSSEC | β οΈ Not signed | ||||||
| NS | isabel.ns.cloudflare.com β | ||||||
| A | 2606:4700:50::a29f:2668πΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isabel.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c268π¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | isabel.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2268πΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | isabel.ns.cloudflare.com | ||||||
| A | 108.162.194.104πΊπΈ Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isabel.ns.cloudflare.com | ||||||
| A | 162.159.38.104Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isabel.ns.cloudflare.com | ||||||
| A | 172.64.34.104πΊπΈ Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isabel.ns.cloudflare.com | ||||||
| NS | sage.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2cecπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sage.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3ecπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sage.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23ecπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sage.ns.cloudflare.com | ||||||
| A | 108.162.195.236πΊπΈ Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sage.ns.cloudflare.com | ||||||
| A | 162.159.44.236Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sage.ns.cloudflare.com | ||||||
| A | 172.64.35.236πΊπΈ Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sage.ns.cloudflare.com | ||||||
| SOA | isabel.ns.cloudflare.comdns@cloudflare.com serial=2420008075 | ||||||
com
| DNSSEC | π Signed (DS record present) | ||||||
| NS | a.gtld-servers.net β | ||||||
| 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=1794766128 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
10 records (2 active, 8 former)
βNSdns1.registrar-servers.com2018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βNSdns2.registrar-servers.com2018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βNSisabel.ns.cloudflare.com2026-09-15 β 2026-11-15 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βNSsage.ns.cloudflare.com2026-09-15 β 2026-11-15 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βMXeforward1.registrar-servers.com2018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βMXeforward2.registrar-servers.com2018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βMXeforward3.registrar-servers.com2018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βMXeforward4.registrar-servers.com2018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βMXeforward5.registrar-servers.com2018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
βA162.255.119.2202018-05-13 β 2018-05-13 Β· 3 obs
β 2026-09-15 11:33:32
β 2026-11-15 18:21:50
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net... | - |
| contextalpha.com | isabel.ns.cloudflare.com, sage.ns.cloudflare.com | 12 records |
β Authoritative Response
Server:172.64.34.104
NS records: isabel.ns.cloudflare.com, sage.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
β±οΈ Timing
Total: 116ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | isabel.ns.cloudflare.com, sage.ns.cloudflare.com |
| SOA | 1 | isabel.ns.cloudflare.com dns.cloudflare. |
π Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (isabel.ns.cloudflare.com, isabel.ns.cloudflare.com, isabel.ns.cloudflare.com...)
Analysis
Name Servers
contextalpha.com uses two name servers for its delegation: isabel.ns.cloudflare.com and sage.ns.cloudflare.com.
contextalpha.com uses the same name servers as several other domains β among them zhuanifinest.workers.dev, kongres-sep.pl, schoolrank.org and two more.
contextalpha.com partially shares its NS delegation with several other domains, including philip-aslan.pages.dev, casino-8s68p4.pages.dev, emiz.org.ua and two others.
The name servers pete.ns.cloudflare.com, clara.ns.cloudflare.com, nitin.ns.cloudflare.com and jermaine.ns.cloudflare.com are often found in use alongside these name servers.
Hostnames that resolve to 6 IP addresses:
Hostname isabel.ns.cloudflare.com directs to 108.162.194.104, 162.159.38.104 and 172.64.34.104 along with 3 other IP addresses.
Hostname sage.ns.cloudflare.com directs to 108.162.195.236, 162.159.44.236 and 172.64.35.236 along with 3 other IP addresses.