What powers p21ww.org?

Last seen Aug 2026 · 20 technologies across 14 categories

Analytics

Azure Monitor
since Jun 2024
Google Analytics
since Jul 2022

CDN

cdnjs
since Jun 2024
Cloudflare
since Jun 2024

CMS

Google Sites
since Oct 2022

Email

Google Workspace
since Sep 2022
SparkPost
since Sep 2022

Font scripts

Google Font API
since Oct 2022

JavaScript libraries

jQuery v2.2.0
since Jul 2022
lit-element v4.1.1
since Sep 2024
lit-html v3.2.1
since Sep 2024

Miscellaneous

Google Code Prettify
since Jul 2022
Open Graph
since Oct 2022

Operating systems

Windows Server
since Jul 2022

PaaS

Azure
since Jul 2022

RUM

Security

HSTS
since Jun 2024

UI frameworks

Bootstrap v4.3.1
since Jun 2024

Web frameworks

Microsoft ASP.NET v4.0.30319
since Jul 2022

Web servers

IIS v10.0
since Jul 2022

AI Crawlers

Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.

  • robots.txt found
  • llms.txt not found
  • ai.txt not found
  • Sep 2026 robots.txt appeared
  • Sep 2026 * added to robots.txt

See who blocks each AI crawler across the web

AI Crawlers

All crawlers blocked

Full breakdown

Audience

  • 100% desktop
  • United States

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

2.05 / 10 · ranked #3,451,447 of all domains

12 referring domains · OpenPageRank

Core Web Vitals

LCP1.4 s
INP25 ms
CLS0.1
TTFB900 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: English (United States)
  • CDN: Google
  • Weight: 1.0 MB · 27 requests
  • Structured data: Microdata, OpenGraph

Homepage as crawled by the HTTP Archive, Sep 2026.

Infrastructure

  • Hosted on Microsoft (23.96.96.142)
  • DNS: Network Solutions
  • Email: no MX record returned
  • SSL: Sectigo, RSA 2048, wildcard, expires Oct 2026
  • Common Crawl link graph: rank 14,940,387, 11 hosts

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

Subdomains

HostTechs
www.p21ww.org 15
forums.p21ww.org 9
connect2024.p21ww.org 7
connect2025.p21ww.org 7
connect2022.p21ww.org 5
connect2023.p21ww.org 5

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