{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10491622","patent":{"patent_number":"US-10491622","title":"Automatic webpage change detection","assignee":null,"inventors":[],"filing_date":"2017-01-04T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["H04L","G06F","H04L","H04L"],"num_claims":28,"abstract":"An improved web crawler, associated method of crawling the Internet, and automatically detection of crawled webpage changes are provided. The method comprises obtaining a first version and a second version of the webpage; generating a first simhash of the first version of the webpage and a second simhash of the second version of the webpage; calculating, using a similarity hashing function having small output perturbations for small input perturbations, a probability that there are no differences between the first version of the webpage and the second version of the webpage; providing, to one or more researcher computers, the first version of the webpage and the second version of the webpage; based on input identifying a change in the webpage, updating a count of changes associated with the webpage; providing information about the change in the webpage in the second version of the webpage relative to the first version of the webpage as feedback to the crawler."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Automatic webpage change detection","description":"An improved web crawler, associated method of crawling the Internet, and automatically detection of crawled webpage changes are provided. The method comprises obtaining a first version and a second ve","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10491622","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-10491622","citation_suggestion":"Patentable. \"Automatic webpage change detection\" (US-10491622). https://patentable.app/patents/US-10491622","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10491622","json":"https://patentable.app/api/llm-context/US-10491622","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:36:25.297Z"}