What powers noirlab.edu?
Last seen Jun 2026 · 56 technologies across 25 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| vtaurus | #5 | 14,100 |
| taurus | #5 | 10,600 |
| ursa major constellation | #2 | 9,800 |
| orion constellation | #2 | 7,400 |
| cassiopeia galaxy | #2 | 6,600 |
| andromeda | #4 | 4,000 |
| taurus the bull constellation | #2 | 3,600 |
| ursa minor constellation | #2 | 3,600 |
| cygnus | #2 | 3,600 |
| betelgeuse | #5 | 2,800 |
| aries constellation | #2 | 2,700 |
| cassiopeia | #4 | 2,700 |
| fish constellation | #2 | 2,400 |
| sagittarius constellation | #2 | 2,200 |
| orion's belt constellation | #4 | 2,000 |
| canis major constellation | #2 | 2,000 |
| kitt peak observatory tucson | #2 | 2,000 |
| kitt peak national observatory tucson az | #2 | 2,000 |
| kitt peak national observatory | #2 | 2,000 |
| kitt peak | #2 | 2,000 |
| draco constellation | #3 | 1,800 |
| andromeda constellation | #2 | 1,600 |
| light pollution | #3 | 1,400 |
| scorpius | #2 | 1,300 |
| southern crux | #2 | 1,300 |
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.
Audience
- 51% desktop
- 46% phone
- 3% tablet
Colombia
Chile
New Zealand
United States
India
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.32 / 10 · ranked #27,865 of all domains
1,030 referring domains · OpenPageRank
Search traffic
157,300 est. monthly organic visits (US)
9,438 keywords in Google's top 30
Core Web Vitals
| LCP | 2.1 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 8.7 MB · 88 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| kpno.noirlab.edu | 20 |
| noirlab.edu | 16 |
| antares.noirlab.edu | 15 |
| www.noirlab.edu | 13 |
| astroarchive.noirlab.edu | 12 |
| development.antares.noirlab.edu | 12 |
| legacy.noirlab.edu | 12 |
| datalab.noirlab.edu | 11 |
| app.globeatnight.noirlab.edu | 8 |
| lssds.noirlab.edu | 8 |
| iraf.noirlab.edu | 7 |
| www-kpno.kpno.noirlab.edu | 5 |
| www.ctio.noirlab.edu | 2 |
Full technology history →
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Recent changes
- detected Apache Tomcat Oct 2025
- detected Java Oct 2025
- detected MariaDB Oct 2025
- detected Skolengo Oct 2025
- dropped CentOS Aug 2025
- dropped Google Tag Manager Aug 2025