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Finding Dead Websites

Finding Dead Websites

14 comments

·June 17, 2025

atribecalledqst

Before I RTFA, I was wondering if this would be about trying to find a way to include Wayback Machine results in search. Searching the Wayback Machine is always such a nightmare, and wouldn't it be nice if your search turned up that long-dead 1997 web page that has the exact answer for what you're looking for...

(minor use case I had recently was I was trying to find old Japanese blogs for Tamagotchis, which I gather there were a ton of in the 90s but almost none survive today - imagine if I could get those instead of the 1,000,000 sites just trying to sell them to me)

Lammy

Kagi has this feature, “Blast From The Past” https://blog.kagi.com/kagi-features#:~:text=Interesting%20fi...

marginalia_nu

They're likely only serving previously accessible domains already in their index as wayback machine links, which is neat, but doesn't really solve the problem of indexing the wayback machine in a broader sense.

Would be a very nice feature to have indeed, though the data is a bit too inaccessible to index as far as I can tell (even though I've not given it any serious effort, so maybe it is?)

Lammy

I kinda consider that a feature and not a bug. If it were easier to find all the really deep stuff in the Wayback Machine, people would be trying to censor it all the time. I like being able to spear-fish my way into the deep shit by finding layers of URI references in other archived pages.

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[deleted]

JdeBP

As someone with a WWW site hit by Brexit where half the country voted to stop me having my domain name (and some other things) I read this with interest to consider how badly it would be caught out on the sort of false positive where a WWW site owner has to change ASes, change HTTP servers, set up redirects and meta information for the time left before eu. becomes unavailable, and even change DNS servers let alone a number of resource records. A lot of those seem to be things that will add up in this model. As would the fact that my prior domain name is today parked. In Canada!

Not the first sudden and unwelcome discontinuity, either.

Google came close to thinking that I was dead, and turned out when I recently checked to be still looking for me under eu., years after the fact.

And with a broader view, this sort of stuff happens to the world, and there are enough people in the same boat that it is worth thinking of false positives when major upheavals occur. They can range from ISPs just up and deciding to close up shop with zero notice (which also happened to me) to international geopolitical upheavals. Who knows! If Brexit happened, it is conceivable that one day, the island of Niue might eventually prevail and then decide overnight that non-Niue citizens may not own a nu. domain. (-:

I wonder how many times Marginalia would have declared me dead, by now. (-:

renegat0x0

Whoa, this is what I have been wondering for some time, for my crawler.

Crawler results depend on domain authority. If page owner, or page contents page change the ranking may, or should change.

However original author also could change contents, and page ranking should not be changed. So this is not easy to determine what to do with domain of it becomes inactive, or changes contents dramatically.

Currently I use only 30 day window to keep track of domains. After that period inactive domain is thrown out of the window.

However valuable domains, even if dead, reside longer. My UI provides easy link to wayback machine. So even for dead links I can browse them.

I noticed also that some domains, even if expired do serve contents, even if author left it alone. Page contents is served, but with a text that it expired.

55555

It's a real edge case, but someone could conceivably let their own domain expire and then register it anew and restore their website. It will be impossible to tell this apart from an SEO buying and restoring a website to use for link juice.

marginalia_nu

Yeah there's no shortage of caveats in this space. One could conceivably compare the outgoing links (being a search engine and all and having historical crawl data to compare against), but my hunch the cost of distinguishing between these two cases is going to be way out of proportion when compared to the benefit.

AznHisoka

The DNS records would be completely revamped, or removed in that case.

mlhpdx

I’m not sure what the authors point was with respect to ASN 16509. Are they saying parked domains don’t like being viewed by Amazon IPs or that moving to Amazon is a strong signal for being parked? The latter seems absurd. But is it?

marginalia_nu

It seems an especially strong signal along with the other signals, i.e. ok status + losing encryption.

The entire game is combining a bunch of weak indicators into a strong one.

koprocezar

That was interesting.

l5870uoo9y

What a pleasant website theme for reading.