What powers 
skyandtelescope.com?
Last seen Oct 2026 · 43 technologies across 23 categories
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AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| 1833 leonids | #6 | 20 |
| great meteor shower 1833 | #6 | 2 |
| 1833 falling stars | #7 | 2 |
| falling of the stars 1833 | #7 | 2 |
| falling stars november 13 1833 | #6 | 1 |
| the great leonid meteor shower | #7 | 1 |
| lalande 21185 | #19 | 1 |
| sky and telescope subscription | #27 | 1 |
| first mars landing | #35 | 1 |
| the night the stars fell | #47 | 1 |
| sky & telescope magazine subscription | #60 | 1 |
| sky and telescope magazine subscription | #79 | 1 |
| what caused the 1833 meteor shower | #9 | 0 |
| skyandtelescope renew | #17 | 0 |
| seagrave observatory skyscrapers inc | #28 | 0 |
| sky and telescope magazine pdf download | #32 | 0 |
| stars fell from heaven 1833 | #32 | 0 |
| ioptron skytracker | #33 | 0 |
| kelsey barnard clark measurements | #33 | 0 |
| skytracker astrophotography | #38 | 0 |
| lalande 21185 b | #43 | 0 |
| sky & telescope pocket sky atlas | #43 | 0 |
| volcanoes on enceladus affect the e ring of saturn by | #45 | 0 |
| skytracker camera | #49 | 0 |
| astrophotography guide | #50 | 0 |
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
- 67% desktop
- 33% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
7.46 / 10 · ranked #18,858 of all domains
1,497 referring domains · OpenPageRank
Search traffic
34 est. monthly organic visits (US)
36 keywords in Google's top 30
Core Web Vitals
| LCP | 3.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2800 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English (United States)
- CDN: Cloudflare, Google
- Weight: 24.0 MB · 130 requests
- WordPress theme: sky-and-telescope-2020 · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Registered Aug 1998 (28 years) via NameCheap, Inc., renews Aug 2027
- Hosted on Cloudflare (104.21.43.161, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 21,997, 9 hosts
- Verified with: Google, Meta Business, 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.skyandtelescope.com | 37 |
| subscriptions.skyandtelescope.com | 8 |
Full technology history →
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Recent changes
- dropped Google AdSense Oct 2026