What powers 
lightandmatter.com?
Last seen Oct 2026 · 2 technologies across 2 categories
Operating systems
Web servers
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 |
|---|---|---|
| light and matter | #1 | 64 |
| simple nature | #6 | 61 |
| the swan viola sheet music | #2 | 23 |
| fundamentals of calculus | #14 | 19 |
| opengrade | #1 | 15 |
| brief calculus | #6 | 11 |
| cactus to clouds | #74 | 7 |
| infinite calculator | #4 | 6 |
| how to get infinity on calculator | #34 | 4 |
| liberté french | #6 | 3 |
| sight-singing book | #8 | 3 |
| infinity calculator | #15 | 2 |
| light physics | #39 | 2 |
| calculator with infinite digits | #7 | 1 |
| anthology for sight singing pdf | #8 | 1 |
| the swan pdf | #8 | 1 |
| cactus to clouds death | #11 | 1 |
| free physics textbooks | #12 | 1 |
| how to put infinity in calculator | #15 | 1 |
| general relativity textbook | #17 | 1 |
| french textbook pdf | #19 | 1 |
| french language textbook pdf | #21 | 1 |
| elementary calculus: an infinitesimal approach | #26 | 1 |
| how do you get infinity on a calculator | #27 | 1 |
| hafele keating experiment | #30 | 1 |
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
- 81% desktop
- 19% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.29 / 10 · ranked #205,595 of all domains
204 referring domains · OpenPageRank
Search traffic
240 est. monthly organic visits (US)
155 keywords in Google's top 30
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 0.0 MB · 8 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Jul 1999 (27 years) via NameCheap, Inc., renews Jul 2028
- Hosted on Amazon Web Services (3.99.94.193, IPv6)
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 39,965, 2 hosts
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 |
|---|---|
| lightandmatter.com | 2 |
| www.lightandmatter.com | 2 |