What powers challenger.org?
Last seen Oct 2026 · 48 technologies across 23 categories
Analytics
Caching
CDN
CMS
Cookie compliance
Databases
Documentation
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
PaaS
Programming languages
Security
UI frameworks
Video players
Web servers
Webmail
Widgets
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| space challenger | #8 | 890 |
| challenger learning center | #3 | 450 |
| barbara morgan astronaut | #2 | 390 |
| challenger space | #6 | 310 |
| the challenger | #11 | 200 |
| challenger spacecraft | #27 | 140 |
| judith resnik | #10 | 110 |
| gregory jarvis | #3 | 97 |
| ellison onizuka | #8 | 57 |
| mcauliffe astronaut | #55 | 38 |
| challenger nasa | #7 | 25 |
| challenger program | #2 | 24 |
| cheryl mcnair | #1 | 22 |
| june scobee | #1 | 21 |
| judith resnik astronaut | #38 | 21 |
| challenger center bangor | #3 | 20 |
| challenger learning center woodstock | #3 | 20 |
| robert curbeam | #3 | 20 |
| challenger learning center of tallahassee | #14 | 19 |
| the challenger center | #2 | 18 |
| teacher astronauts | #3 | 17 |
| challenger learning center locations | #2 | 15 |
| challenger learning center woodstock il | #4 | 14 |
| expedition mars | #4 | 14 |
| hawaiian monk seal population | #4 | 14 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 71% desktop
- 29% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.50 / 10 · ranked #158,712 of all domains
190 referring domains · OpenPageRank
Search traffic
3,400 est. monthly organic visits (US)
375 keywords in Google's top 30
Core Web Vitals
| LCP | 2.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 16.7 MB · 90 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Challenger Center (Challenger Center for Space Science Education on Wikidata)
- Country: United States
- Profiles: Facebook, X, Instagram, LinkedIn, YouTube
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Registered Oct 1995 (31 years) via GoDaddy.com, LLC, renews Oct 2026
- Hosted on Cloudflare (141.193.213.10)
- DNS: GoDaddy DNS
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 469,880, 7 hosts
- Verified with: Apple Business, Google, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.challenger.org | 42 |
| challenger.org | 29 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Microsoft 365 Feb 2026
- detected Twitter Emoji (Twemoji) Jan 2026