A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on …

Lighthouse has audits for performance, accessibility, progressive web apps, SEO, and more. You can run Lighthouse against any web page, public or requiring authentication. You can run Lighthouse as …

Located on the former site of the United States Lighthouse Service’s (USLHS) General Depot in St. George, Staten Island, the National Lighthouse Museum educates visitors about the history and …

Jan 16, 2026 · View 20 Beautiful Lighthouses That Lead the Way to Serene Scenes These highlights from the Smithsonian Magazine Photo Contest include cliffside towers and lovely ...

Lighthouse, structure, usually with a tower, built onshore or on the seabed to serve as an aid to maritime coastal navigation, warning mariners of hazards, establishing their position, and guiding them to their …

Dec 30, 2025 · This site includes photographs, directions, histories, and GPS coordinates garnered while personally visiting every lighthouse in the United States and nearly every lighthouse in Canada.

Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps. When auditing a page, Lighthouse runs a barrage of tests against the page,...