qfteach.com - robtex.com
qfteach.com
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3033::ac43:a271πΊπΈ Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:42acπΊπΈ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.66.172Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.162.113πΊπΈ Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | elma.ns.cloudflare.com β | ||||||
| A | 2606:4700:50::adf5:3a9aπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c09aπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:209aπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 108.162.192.154πΊπΈ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 172.64.32.154πΊπΈ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 173.245.58.154πΊπΈ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| NS | george.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3ba7πΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | george.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1a7π¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | george.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21a7πΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | george.ns.cloudflare.com | ||||||
| A | 108.162.193.167πΊπΈ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | george.ns.cloudflare.com | ||||||
| A | 172.64.33.167πΊπΈ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | george.ns.cloudflare.com | ||||||
| A | 173.245.59.167πΊπΈ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | george.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.66.172, 172.67.162.113 | ||||||
| IPv6 hints | 2606:4700:3033::ac43:a271, 2606:4700:3035::6815:42ac | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=224, name=cloudflare-ech.com | ||||||
| SOA | elma.ns.cloudflare.comdns@cloudflare.com serial=2400374795 | ||||||
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=1776325502 | ||||||
Same first word
qfteach.com |
Similar names
DNS History
16 records (6 active, 10 former)
βNSa.share-dns.com2026-03-25 β 2026-03-25 Β· 4 obs
β 2026-03-25 16:19:06
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βNSa1.share-dns.com2026-03-25 β 2026-03-25 Β· 4 obs
β 2026-03-25 16:19:06
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βNSb.share-dns.net2026-03-25 β 2026-03-25 Β· 4 obs
β 2026-03-25 16:19:06
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βNSb1.share-dns.net2026-03-25 β 2026-03-25 Β· 4 obs
β 2026-03-25 16:19:06
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βNSdns13.hichina.com2015-08-12 β 2017-05-17 Β· 5 obs
β 2015-08-12 00:57:44
β 2017-05-17 04:48:56
β 2026-03-25 16:19:06
β 2026-04-16 08:05:56
βNSdns14.hichina.com2015-08-12 β 2017-05-17 Β· 5 obs
β 2015-08-12 00:57:44
β 2017-05-17 04:48:56
β 2026-03-25 16:19:06
β 2026-04-16 08:05:56
βNSelma.ns.cloudflare.com2026-04-16 β 2026-04-16 Β· 3 obs
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βNSgeorge.ns.cloudflare.com2026-04-16 β 2026-04-16 Β· 3 obs
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βNSns1.fastpark.net2008-03-12 β 2008-03-12 Β· 3 obs
β 2015-08-12 00:57:44
β 2026-04-16 08:05:56
βNSns2.fastpark.net2008-03-12 β 2008-03-12 Β· 3 obs
β 2015-08-12 00:57:44
β 2026-04-16 08:05:56
βA104.21.66.1722026-04-16 β 2026-04-16 Β· 3 obs
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βA172.67.162.1132026-04-16 β 2026-04-16 Β· 3 obs
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βA216.8.177.232008-03-12 β 2008-03-12 Β· 3 obs
β 2015-08-12 00:57:44
β 2026-04-16 08:05:56
βA2606:4700:3033::ac43:a2712026-04-16 β 2026-04-16 Β· 3 obs
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βA2606:4700:3035::6815:42ac2026-04-16 β 2026-04-16 Β· 3 obs
β 2026-04-16 08:05:54
β 2026-04-16 08:05:56
βA42.156.141.132015-08-12 β 2017-05-17 Β· 5 obs
β 2015-08-12 00:57:44
β 2017-05-17 04:48:56
β 2026-03-25 16:19:06
β 2026-04-16 08:05:56
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, j.gtld-servers.net, d.gtld-servers.net, l.gtld-servers.net... | - |
| qfteach.com | elma.ns.cloudflare.com, george.ns.cloudflare.com | 12 records |
β Authoritative Response
Server:108.162.192.154
NS records: elma.ns.cloudflare.com, george.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for qfteach.com (unsigned zone)
β±οΈ Timing
Total: 170ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.66.172, 172.67.162.113 |
| AAAA | 2 | 2606:4700:3035::6815:42ac, 2606:4700:3033::ac43:a271 |
| NS | 2 | elma.ns.cloudflare.com, george.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | elma.ns.cloudflare.com dns.cloudflare.co |
π Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (elma.ns.cloudflare.com, elma.ns.cloudflare.com, elma.ns.cloudflare.com...)
Analysis
IP Addresses
qfteach.com points to four IP numbers: 2606:4700:3033::ac43:a271, 2606:4700:3035::6815:42ac, 104.21.66.172 and 172.67.162.113.
Other host names, for instance brcdev.net, wean.at, kurchatov.info, ahzongguang.com and 5ginfo.nl share IP numbers with qfteach.com.
Name Servers
qfteach.com is delegated to two name servers: elma.ns.cloudflare.com and george.ns.cloudflare.com.
qfteach.com uses the same name server setup as other domains, for instance slbayy.com, allfloridasealcoat.com, comparehealthrates.com, mianmutao.com and qhbyd.com.
qfteach.com shares name servers with other domains at least partially, for instance tjboye.com, distrinando.com, 56189m.com, maddreypllc.com and womeninagscience.org.
these name servers are often used together with the name servers leland.ns.cloudflare.com.
Host names with six IP numbers: elma.ns.cloudflare.com points to 2606:4700:50::adf5:3a9a, 2803:f800:50::6ca2:c09a, 2a06:98c1:50::ac40:209a, 108.162.192.154, 172.64.32.154 and 173.245.58.154; george.ns.cloudflare.com points to 2606:4700:58::adf5:3ba7, 2803:f800:50::6ca2:c1a7, 2a06:98c1:50::ac40:21a7, 108.162.193.167, 172.64.33.167 and 173.245.59.167.