From the Columbia Journalism Review (CJR):
Our team of researchers at Harvard Law School has undertaken a project to gain insight into the extent and characteristics of journalistic linkrot and content drift. We examined hyperlinks in New York Times articles, starting with the launch of the Times website in 1996 up through mid-2019, developed on the basis of a data set provided to us by the Times. The substantial linkrot and content drift we found here reflect the inherent difficulties of long-term linking to pieces of a volatile Web. The Times in particular is a well-resourced standard-bearer for digital journalism, with a robust institutional archiving structure. Their interest in facing the challenge of linkrot indicates that it has yet to be understood or comprehensively addressed across the field.
We found that of the 553,693 articles within the purview of our study––meaning they included URLs on nytimes.com––there were a total of 2,283,445 hyperlinks pointing to content outside of nytimes.com. Seventy-two percent of those were “deep links” with a path to a specific page, such as example.com/article, which is where we focused our analysis (as opposed to simply example.com, which composed the rest of the data set).
Of these deep links, 25 percent of all links were completely inaccessible. Linkrot became more common over time: 6 percent of links from 2018 had rotted, as compared to 43 percent of links from 2008 and 72 percent of links from 1998. Fifty-three percent of all articles that contained deep links had at least one rotted link.
See Also: How Can You Help Combat Link Rot? (via Internet Archive)
Note the section on The Wayback Machine’s “Save Page Now” Service, It’s Free!
Note 2: Just about everything we link to on infoDOCKET (including the article shared in this post) is archived in Wayback at the time of discovery. It only takes a few seconds.