johnstonsarchive.net — August 2026 traffic, keywords & AI visibility

Search engines send johnstonsarchive.net an estimated 15,000 visits a month. Effectively all of it is organic — about 15,000 visits from unpaid results. Spread across 3,438 ranking keywords, that averages roughly 4.4 organic visits per keyword.

johnstonsarchive.net scores 85 out of 100 on our AI visibility scale, grade A. It takes full marks for LLMS.txt and Structured data. The biggest gap is Crawlability, at 0 of 10 points (robots ✗ · sitemap ✗), worth 10 points if closed. It also loses points on Company profile (22/25) and SEO health (18/20).

The llms.txt on johnstonsarchive.net runs to 158 lines (7,350 characters) across 12 sections, last generated in April 2026. It introduces the site as "Johnston's Archive". It tells AI engines the business works in Astrophysics, Physics, Space Exploration, Nuclear Physics and Climate Change. It describes 4 products, with prices such as Astrophysics Compilations at Free, Nuclear Physics Datasets at Free and Space Exploration Timelines at Free. Services it lists include Physics Article Access, Data Compilation Requests, Educational Resource Guides and Research Reference Support. The audience it names is Science students, researchers, enthusiasts, aged 18-65 (Global). Technologies it mentions include HTML, CSS, HTTPS and Static Site Hosting. The keywords it claims start with "Johnston's Archive", "Astrophysics", "Physics" and "Space Exploration".

# Johnston's Archive

## About
Johnston's Archive is a dedicated online repository specializing in astrophysics, nuclear physics, space exploration, and related scientific fields including climate change studies. It compiles detailed articles, data tables, and analyses that are freely available to the public, making it an invaluable resource for learners at all levels. The site focuses on presenting complex physics concepts in a clear, organized manner without commercial interruptions.

From quantum mechanics breakdowns to comprehensive space mission timelines, the archive caters to students cramming for exams, professional researchers seeking quick references, and amateur astronomers hungry for data. Its strength is in the meticulous curation of information from diverse sources, often including historical contexts and future projections in nuclear energy and environmental science. Visitors return for the reliability and depth that mainstream sites sometimes gloss over.

Over nearly three decades, it has grown into a niche authority, with sections evolving to cover emerging topics like astrobiology and everyday physics applications. The no-nonsense approach empowers users to explore scientific methods independently, sparking curiosity and informed discussions worldwide.

**Areas of Work:** Astrophysics, Physics, Space Exploration, Nuclear Physics, Climate Change

## Things to R

Google lists johnstonsarchive.net for about 3,438 keywords, which together bring an estimated 15,000 organic visits a month.

The latest technical audit of johnstonsarchive.net scored 88 out of 100 overall. Accessibility is its weakest area at 70, while performance scores highest at 99. The audit makes 12 recommendations in all, and 4 of the 4 listed first are rated high priority or critical.

Johnston's Archive's company profile names https://nasa.gov, https://space.com, https://physics.org and https://astrophysics.org as competitors. Its own llms.txt adds https://climate.gov and https://nuclearenergy.gov. Outside its market, the domains ranked closest to it in our worldwide ranking are presentationgo.com, nordnet.ws, pvnrz.space and lsfeed.eu.

https://nasa.gov

https://space.com

https://physics.org

https://astrophysics.org

https://climate.gov

https://nuclearenergy.gov