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Comment by WA | Hacker News Reader

Not sure if I see this as "art" or something. I mean, irrevocably deletes itself could be attached to a thousand arbitrary things.

- deleted after 100 visitors

- deleted if visited with IE 6.0 for the first time

- deleted if referrer is Facebook

- ...

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Also, irrecovability seems a bit questionable (google cache, archive.org etc.)

    <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
    <meta http-equiv="Pragma" content="no-cache" />
    <meta http-equiv="Expires" content="0" />

    Cache-Control: no-cache, no-store, must-revalidate
    Pragma: no-cache
    Expires: 0

    User-agent: ia_archiver
    Disallow: /

Of course, this won't prevent crawlers which do not honor these headers/meta tags from caching your site, but if you're not in Google's index you're likely not getting traffic from said crawlers.

Good point. I wonder if meta tags were updated later or did archive.org ignore them - https://web.archive.org/web/20150213152238/http://eep40h.her...

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