dev.content.ef.com - robtex.com
dev.content.ef.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-1061.awsdns-04.org ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5304:2500::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1061.awsdns-04.org | ||||||
| A | 205.251.196.37🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1061.awsdns-04.org | ||||||
| NS | ns-2018.awsdns-60.co.uk ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5307:e200::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-2018.awsdns-60.co.uk | ||||||
| A | 205.251.199.226🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-2018.awsdns-60.co.uk | ||||||
| NS | ns-85.awsdns-10.com ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5300:5500::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-85.awsdns-10.com | ||||||
| A | 205.251.192.85🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-85.awsdns-10.com | ||||||
| NS | ns-917.awsdns-50.net ⚠️ Not in zone NS records | ||||||
| A | 2600:9000:5303:9500::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-917.awsdns-50.net | ||||||
| A | 205.251.195.149🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-917.awsdns-50.net | ||||||
content.ef.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-253.awsdns-31.com ⭐ | ||||||
| NS | ns-1481.awsdns-57.org | ||||||
| NS | ns-1989.awsdns-56.co.uk | ||||||
| NS | ns-808.awsdns-37.net | ||||||
| SOA | ns-253.awsdns-31.comawsdns-hostmaster@amazon.com serial=1 | ||||||
WOT: SAFE (88/100)
Same first word
Similar names
Previous names
Next names
DNS History
4 records (4 active, 0 former)
●NSns-1061.awsdns-04.org2026-07-29 → 2026-10-18 · 2 obs
● 2026-10-18 12:44:10
●NSns-2018.awsdns-60.co.uk2026-07-29 → 2026-10-18 · 2 obs
● 2026-10-18 12:44:10
●NSns-85.awsdns-10.com2026-07-29 → 2026-10-18 · 2 obs
● 2026-10-18 12:44:10
●NSns-917.awsdns-50.net2026-07-29 → 2026-10-18 · 2 obs
● 2026-10-18 12:44:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net... | - |
| ef.com | tricia.ns.cloudflare.com, jihoon.ns.cloudflare.com | 12 records |
| content.ef.com | ns-1481.awsdns-57.org, ns-1989.awsdns-56.co.uk, ns-253.awsdns-31.com, ns-808.awsdns-37.net | - |
| dev.content.ef.com | ns-1061.awsdns-04.org, ns-2018.awsdns-60.co.uk, ns-85.awsdns-10.com, ns-917.awsdns-50.net | - |
✅ Authoritative Response
Server:205.251.195.149
NS records: ns-1061.awsdns-04.org, ns-2018.awsdns-60.co.uk, ns-85.awsdns-10.com, ns-917.awsdns-50.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ef.com (unsigned zone)
⏱️ Timing
Total: 1233ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (tricia.ns.cloudflare.com, tricia.ns.cloudflare.com, tricia.ns.cloudflare.com...)
Analysis
Name Servers
Four name servers handle the delegation for dev.content.ef.com: ns-85.awsdns-10.com, ns-917.awsdns-50.net, ns-1061.awsdns-04.org and ns-2018.awsdns-60.co.uk.
dev.content.ef.com partially shares its NS delegation with several other domains, including sydneycellardoor.com.au, iptechview.com, d1ssq2a38qhb0y.cloudfront.net and two others.
ns-85.awsdns-10.com, ns-917.awsdns-50.net, ns-1061.awsdns-04.org and ns-2018.awsdns-60.co.uk each carry two IP addresses. ns-85.awsdns-10.com has 205.251.192.85 and 2600:9000:5300:5500::1; ns-917.awsdns-50.net has 205.251.195.149 and 2600:9000:5303:9500::1; ns-1061.awsdns-04.org has 205.251.196.37 and 2600:9000:5304:2500::1; ns-2018.awsdns-60.co.uk has 205.251.199.226 and 2600:9000:5307:e200::1.