A persistent uniform resource locator (PURL) is a uniform resource locator (URL) (i.e., location-based uniform resource identifier or URI) that is used to redirect to the location of the requested web resource. PURLs redirect HTTP clients using HTTP status codes. Originally, PURLs were recognizable for being hosted at purl.org or other hostnames containing purl. Early on many of those other hosts used descendants of the original OCLC PURL system software. Eventually, however, the PURL concept came to be generic and was used to designate any redirection service (named PURL resolver) that: More information...
According to PR-model, purl.org is ranked 7,712th in multilingual Wikipedia, in particular this website is ranked 288th in Arabic Wikipedia.
The website is placed before romper.com and after koenigsegg.com in the BestRef global ranking of the most important sources of Wikipedia.