3lesson15.pages.dev - robtex.com

3lesson15.pages.dev

DNSSEC⚠️ Not signed
A2606:4700:310c::ac42:2caf🇺🇸 Cloudflare2606:4700:310c::/48 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:310c::ac42:2f51🇺🇸 Cloudflare2606:4700:310c::/48 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.44.175🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.47.81🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSblair.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2679🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblair.ns.cloudflare.com
A2803:f800:50::6ca2:c279🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRblair.ns.cloudflare.com
A2a06:98c1:50::ac40:2279🇺🇸 Cloudflare2a06:98c1:50::/45
PTRblair.ns.cloudflare.com
A108.162.194.121🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblair.ns.cloudflare.com
A162.159.38.121Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblair.ns.cloudflare.com
A172.64.34.121🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRblair.ns.cloudflare.com
NSkellen.ns.cloudflare.com
A2606:4700:58::a29f:2ca0🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkellen.ns.cloudflare.com
A2803:f800:50::6ca2:c3a0🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkellen.ns.cloudflare.com
A2a06:98c1:50::ac40:23a0🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkellen.ns.cloudflare.com
A108.162.195.160🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkellen.ns.cloudflare.com
A162.159.44.160Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkellen.ns.cloudflare.com
A172.64.35.160🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkellen.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints172.66.44.175, 172.66.47.81
IPv6 hints2606:4700:310c::ac42:2caf, 2606:4700:310c::ac42:2f51
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=161, name=cloudflare-ech.com
SOAblair.ns.cloudflare.comdns@cloudflare.com serial=2409664699

pages.dev

DNSSEC⚠️ Not signed
A2606:4700::6812:1487🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6812:1587🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.20.135Cloudflare104.18.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.21.135Cloudflare104.18.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSadi.ns.cloudflare.com ⭐
NSkarl.ns.cloudflare.com
TXTca3-5c38164b370642b5ab3dc252644cfaff
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.18.20.135, 104.18.21.135
IPv6 hints2606:4700::6812:1487, 2606:4700::6812:1587
SOAadi.ns.cloudflare.comdns@cloudflare.com serial=2409936432
rank #304 globally
rank #1 in the tld

pages.dev

pages.dev is a domain operated by Cloudflare, Inc. It provides preview URLs for sites hosted on Cloudflare Pages, a Jamstack static‑site hosting platform.

Key facts

  • Owner / operator: Cloudflare, Inc.
  • TLD:.dev— gTLD
  • Primary purpose: static site hosting preview URLs for Cloudflare Pages
  • Status: active

Notable subdomains or services

  • *.pages.dev– preview URLs for individual Cloudflare Pages projects
Semrush Rank:#2,084,788 Keywords:2 Traffic:325/mo
WOT: SAFE (50/100)
📈 Tranco rank: #263
pages.dev - Tranco Rank (30d: ↑+6)234240250260270273Jun 7Jun 17Jun 27Jul 7Jul 17Rank#269#263

Cloudflare Pages

pages.dev is the default domain for Cloudflare Pages, a JAMstack deployment platform for frontend developers. When you deploy a site to Cloudflare Pages, it's automatically hosted on a*.pages.devsubdomain (e.g.,mysite.pages.dev), with the option to add custom domains.

Key Features

  • Git-based deployments — Automatic builds triggered by pushes to GitHub or GitLab
  • Framework support — React, Vue, Gatsby, Hugo, and other popular frameworks
  • Preview URLs — Auto-generated links for every commit to facilitate collaboration
  • Edge network — Sites run on Cloudflare's global CDN with HTTP/3, QUIC, and automatic SSL
  • Free tier — Unlimited sites with 500 builds/month and unlimited bandwidth

Technical Details

  • Nameservers:adi.ns.cloudflare.com,karl.ns.cloudflare.com
  • IPv4: 104.18.20.135, 104.18.21.135
  • IPv6: 2606:4700::6812:1487, 2606:4700::6812:1587
  • Hosting: Cloudflare (AS13335)
  • Mail servers: None (no MX records)
  • DNSSEC: Not signed

Ranking

Tranco rank #416 globally, making it the #1 most popular domain in the.devTLD. The.devTLD is operated by Charleston Road Registry (a Google subsidiary).

Same first word

3lesson15.pages.dev

DNS History

6 records (6 active, 0 former)

NSblair.ns.cloudflare.comkellen.ns.cloudflare.comA172.66.44.175172.66.47.812606:4700:310c::ac42:2caf2606:4700:310c::ac42:2f51
●NSblair.ns.cloudflare.com2026-07-16 → 2026-07-19 · 2 obs
● 2026-07-16 22:42:06
● 2026-07-19 09:01:08
●NSkellen.ns.cloudflare.com2026-07-16 → 2026-07-19 · 2 obs
● 2026-07-16 22:42:06
● 2026-07-19 09:01:08
●A172.66.44.1752026-07-16 → 2026-07-19 · 2 obs
● 2026-07-16 22:42:06
● 2026-07-19 09:01:08
●A172.66.47.812026-07-16 → 2026-07-19 · 2 obs
● 2026-07-16 22:42:06
● 2026-07-19 09:01:08
●A2606:4700:310c::ac42:2caf2026-07-16 → 2026-07-19 · 2 obs
● 2026-07-16 22:42:06
● 2026-07-19 09:01:08
●A2606:4700:310c::ac42:2f512026-07-16 → 2026-07-19 · 2 obs
● 2026-07-16 22:42:06
● 2026-07-19 09:01:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
pages.devkarl.ns.cloudflare.com, adi.ns.cloudflare.com-
3lesson15.pages.devblair.ns.cloudflare.com, kellen.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.121

NS records: blair.ns.cloudflare.com, kellen.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pages.dev (unsigned zone)

⏱️ Timing

Total: 375ms | Queries: -

📄 Records

TypeCountSample Data
A2172.66.44.175, 172.66.47.81
AAAA22606:4700:310c::ac42:2caf, 2606:4700:310c::ac42:2f51
NS2blair.ns.cloudflare.com, kellen.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1blair.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

3lesson15.pages.dev points to the four IP addresses 172.66.44.175, 172.66.47.81, 2606:4700:310c::ac42:2caf and 2606:4700:310c::ac42:2f51.

Additional host names — claude-mastery-onboarding.pages.dev, fsrenevis.pages.dev, claude-sales-follow-up.pages.dev and two others — share IP numbers with 3lesson15.pages.dev.

Name Servers

3lesson15.pages.dev is delegated to two name servers: blair.ns.cloudflare.com and kellen.ns.cloudflare.com.

3lesson15.pages.dev shares its name server setup with other domains, including 3lesson13.pages.dev, 3lesson20.pages.dev, 3lesson3.pages.dev and two others.

The name servers of 3lesson15.pages.dev overlap at least partially with those of other domains — among them knifsam.se, schwarzes-brandenburg.de, alexxworks.com and two more.

These name servers commonly co-occur with the name servers kenia.ns.cloudflare.com, edward.ns.cloudflare.com, oaklyn.ns.cloudflare.com and coen.ns.cloudflare.com.

Host names with 6 IP numbers:

blair.ns.cloudflare.com resolves to 108.162.194.121, 162.159.38.121, 172.64.34.121 and 3 other IP addresses.

kellen.ns.cloudflare.com resolves to 108.162.195.160, 162.159.44.160, 172.64.35.160 and 3 other IP addresses.