The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
- Top ranked pages (up to a max of 100) from every linked-to domain using the Wide00012 inter-domain navigational link graph
-- a ranking of all URLs that have more than one incoming inter-domain link (rank was determined by number of incoming links using Wide00012 inter domain links)
-- up to a maximum of 100 most highly ranked URLs per domain
The seed list contains a total of 431,055,452 URLs The seed list was further filtered to exclude known porn, and link farm, domains The modified seed list contains a total of 428M URLs
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20160420150314/https://en.wikipedia.org/wiki/SQL/MED
The SQL/MED, or Management of External Data, extension to the SQL standard is defined by ISO/IEC 9075-9:2003. SQL/MED provides extensions to SQL that define foreign-data wrappers and datalink types to allow SQL to manage external data. External data is data that is accessible to, but not managed by, an SQL-based DBMS. This standard can be used in the development of federated database systems.
