The 11-Year Bet on Web Link Rot: Did the URL Survive? A Long Bets Verdict

The Wager That Tested the Web's Memory

In 2011, a seemingly simple question was posed on the Long Bets platform: would a specific URL still exist in 11 years? The bet, numbered 601, pitted web developer and writer Jeremy Keith against Matthew A. Haughey, founder of MetaFilter. The stakes were $1,000, with proceeds going to either Bletchley Park Trust or The Internet Archive, depending on the outcome.

Keith, a proponent of web standards, argued that link rot—the gradual decay of URLs—was the web's natural entropy. He quoted Tim Berners-Lee's famous 1999 essay, "Cool URIs don't change," and suspected that even a relatively short period like 11 years would be too long for a resource to survive unchanged. Haughey countered that web technologies and strategies had matured enough to make stable URIs achievable for anyone with moderate technical knowledge.

The Detailed Terms: A Precise Test

The bet's adjudication terms were unusually specific. On February 22, 2022, from 00:01 UTC to 23:59 UTC, entering http://www.longbets.org/601 into a browser or command-line tool, or following a hyperlink to that address, had to return an HTML document containing the exact text: "The original URL for this prediction (www.longbets.org/601) will no longer be available in eleven years."

A 301 redirect to a different URL containing that text would also satisfy the conditions. If those conditions were met, Haughey would win; if not, Keith would claim victory. This precise wording eliminated ambiguity and made the test binary.

The Verdict: Link Rot Defied

As the Long Bets website now shows, the prediction page at longbets.org/601 is still live and functional. The page includes the original arguments, the detailed terms, and even a "Winner!" badge next to Haughey's name. This means the conditions were met: the URL survived, and the text remained accessible. Haughey won the bet, and the $1,000 went to The Internet Archive, a fitting beneficiary for an argument about web preservation.

Keith, in his argument, said he would "love to be proven wrong." And he was. The outcome challenges the assumption that all web content is ephemeral, suggesting that with proper stewardship, even small sites can maintain stable URLs for over a decade.

Why This Matters: The Fight Against Link Rot

This bet is more than a curiosity; it's a real-world experiment in digital preservation. Link rot is a documented problem. Studies have shown that a significant percentage of URLs in academic papers, government documents, and news articles become inaccessible within a few years. The Internet Archive's Wayback Machine exists precisely because of this fragility.

Haughey's success can be attributed to several factors: the Long Bets platform itself is maintained by the Long Now Foundation, an organization dedicated to long-term thinking. The site uses stable infrastructure, and the URL structure was designed to be permanent. This suggests that link rot is not inevitable but a consequence of neglect and poor design.

Technical Analysis: What Made the URL Survive?

Haughey's argument highlighted that his oldest sites were 13 years old at the time of the bet, with original URL schemes still functioning via 301 redirects. He credited "technology and strategies have matured" for making stable URIs attainable.

The Long Bets platform likely benefited from:

• Deliberate URL design: Short, human-readable paths that are less likely to be changed during site migrations.
• Institutional backing: The Long Now Foundation's mission ensures ongoing maintenance.
• Minimal technical debt: The site's simplicity reduces the need for restructuring.

These factors align with best practices for long-term web preservation, such as using persistent identifiers and avoiding session-based URLs.

Broader Context: The Web's Fragility and Resilience

The bet's outcome is a small but meaningful data point in the ongoing conversation about digital decay. While many URLs do rot, the ones that survive often share common traits: institutional support, clear ownership, and a commitment to stability.

Consider the Wikipedia list of apocalyptic predictions, which cites sources from decades ago. Many of those original URLs are dead, but the information survives through reprints and archives. Similarly, the Long Bets page itself has become a historical artifact, now referenced in discussions about link rot.

The fact that the page still contains the original text—including the phrase that was the subject of the bet—is a meta-irony that delights technologists. It's a self-referential proof that some web content can endure.

The Human Element: A Friendly Wager

Beyond the technical implications, the bet is a story of two respected web veterans engaging in a friendly, intellectual contest. Keith is known for his work on HTML5 and his book "Resilient Web Design." Haughey is a pioneer of online communities. Their bet reflects a shared passion for the web's future, even as they disagreed on its fragility.

The Long Bets platform itself, a project of the Long Now Foundation, encourages such long-term thinking. It's designed to foster predictions that span decades, forcing participants to consider the far future. Bet 601 is a perfect example of this mission.

Conclusion: A Lesson in Digital Stewardship

As of 2022, the URL survived, and Haughey's confidence was vindicated. But the bet also serves as a reminder that survival is not guaranteed. It requires conscious effort. The Internet Archive, which received the winnings, continues to work tirelessly to preserve the web's history, including pages that might otherwise vanish.

For web developers and content managers, the lesson is clear: if you want your URLs to last, design them carefully, maintain them diligently, and consider the long term. The web is not inherently ephemeral—it's what we make of it.

The bet is now part of internet lore, a small experiment with a definitive answer. And the page at longbets.org/601 remains, a testament to the possibility of permanence in a transient medium.