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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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13 Feet Ladder (github.com)

submitted 10 months ago by [email protected] to c/[email protected]

23 comments fedilink hide all child comments

A site similar to 12ft.io but is self hosted and works with websites that 12ft.io doesn't work with.

How does it work?

It pretends to be GoogleBot (Google's web crawler) and gets the same content that google will get. Google gets the whole page so that the content of the article can be indexed properly and this takes advantage of that.

link: https://github.com/wasi-master/13ft

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[–] [email protected] 28 points 10 months ago* (last edited 10 months ago) (2 children)

It amazes me that all it takes is just changing user agent to Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/W.X.Y.Z Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html) and it can bypass paywalls on many sites? I thought those sites would try harder (e.g. checking if the ip address is truly belong to google), but apparently not.

[–] [email protected] 12 points 10 months ago (1 children)

Checking ip ownership is a moving target more likely to result in outcomes these sites don’t want (accidentally blocking google bots and preventing results from appearing on google).

Checking useragent is cheap, easier, unlikely to break (for this purpose, anyway) and the percentage of folks who know how to bypass this check is relatively slim, with a pretty small financial impact.

[–] [email protected] 2 points 10 months ago (1 children)

It's not necessarily a moving target when entire blocks can be associated with Google.

[–] [email protected] 3 points 10 months ago (1 children)

Unless they are permanently only using specific addresses or blocks and will never change that up, I’d consider it a moving target.

[–] [email protected] 1 points 10 months ago

Google literally has an official list of IP ranges for their crawlers, complete with an API that returns the current IP ranges that you can use to automate a check. Hardly a moving target, and even if it is, it doesn't matter if you know exactly where the target is at all times.