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This web page states the following, "Welcome to the Digital Library for Physics and Astronomy." Our analyzers viewed that the web site also stated " This site is hosted by." The Website also said " National Astronomical Observatory of Japan. Abstracts and full-text of major astronomy and physics publications are indexed and searchable through the new ADS Labs interface. As well as the traditional Classic search forms. A set of browsable interfaces. In addition to maintaining its bibliographic corpus, the ADS tracks citations and usage of its records to provide advanced discover." The website's header had Astronomy as the most important search term. It is followed by Astrophysics, Planetary Sciences, and Physics which isn't as highly ranked as Astronomy. The next words they uses is Instrumentation. Abstract Search was included and might not be understood by search crawlers.