Cool URIs, CMS Migrations, and the Financial Realities of Web Entropy
The resurfacing of Tim Berners-Lee’s classic 1998 manifesto, "Cool URIs Don't Change," has ignited a profound reflection on the decay of the modern web. While Berners-Lee argued that link rot is a failure of organizational discipline and forward-looking design, contemporary web development reveals a harsher reality: maintaining URL stability has become a luxury that modern corporate structures and content management systems are economically disincentivized to support.
The resulting "web entropy" is not just a minor inconvenience for archivists; it is a structural collapse of wayfinding that breaks consumer hardware integrations, degrades enterprise documentation, and leaves a trail of broken redirects across the internet.
The Economic Disincentive of URL Maintenance
In theory, keeping URLs permanent is technically simple using server redirects. In practice, however, as companies undergo multiple mergers, acquisitions, and CMS migrations, the complexity of maintaining a legacy routing table scales exponentially.
Because there is no immediate financial metric tied to maintaining ten-year-old URLs, project managers routinely abandon redirect chains during migrations, permanently breaking thousands of external inbound links.
"There is no financial incentive for most companies to maintain extremely old URLs. There is no large visible cost known to the project manager at a company who chooses to migrate to a different CMS... it becomes extremely expensive to maintain backwards compatibility after 2 or more CMS changes." — thephyber on Hacker News
"Indeed. Back when I worked at a small software sweatshop^Whouse, I was tasked with migrating the company's static-ish website (a bunch of PHP files) into WordPress. Heeding the linked advice, I carefully set up 301 redirects from the old pages to new ones. When I look up the website now, the redirects are gone. Nobody cared to maintain them." — pwdisswordfishq on Hacker News
The Modern Breakdown of Hardware and Documentation
The consequences of this web decay are particularly severe in the consumer electronics and enterprise software spaces. Help links embedded in operating systems, QR codes printed on physical home appliances, and URLs on product cards frequently lead to generic landing pages, search forms, or outright HTTP 404 errors within months of a product's release.
Furthermore, webmasters report a bizarre new category of link rot: a massive surge in 404 errors caused by LLMs hallucinating nonexistent URLs on their domains, fabricating references for topics the websites have never even covered.
"I bought an air conditioner last year, some wal-mart 'smart' AC... and it has a QR code for the companion app. I finally got around to getting the app this summer and lo and behold, it’s a dead link. Yay." — phatskat on Hacker News
"Nowadays it feels a little quaint because most of my 404s are from LLMs hallucinating URLs that never existed, sometimes for topics I never covered. I wonder what nonsense it attributes to me." — nicbou on Hacker News