id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-3301 Link rot - Wikipedia .html text/html 1936 288 71 Link rot (also called link death, link breaking, or reference rot) is the phenomenon of hyperlinks tending over time to cease to point to their originally targeted file, web page, or server due to that resource being relocated to a new address or becoming permanently unavailable. A number of studies have examined the prevalence of link rot within the World Wide Web, in academic literature that uses URLs to cite web content, and within digital libraries. A 2013 study in BMC Bioinformatics analyzed nearly 15,000 links in abstracts from Thomson Reuters's Web of Science citation index and found that the median lifespan of web pages was 9.3 years, and just 62% were archived.[8] ./cache/en-wikipedia-org-3301.html ./txt/en-wikipedia-org-3301.txt