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I want to check if a webpage's content is changing

with python. For let's say in every 1 hour. For that do I need to send get request every 1 hour or is there any other way ?

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Saurav- Автор вопроса

Is there a possibility that I may get blocked for sending too many requests?

Saurav
Is there a possibility that I may get blocked for ...

Yes. But one request every hour is hardly too many.

The best you can do is a HEAD request per hour and look at the Date or Etag response headers if the website supports either of those

Saurav- Автор вопроса
Thomas
The best you can do is a HEAD request per hour and...

What can I do with Data header? It just gives the date of the head request

Saurav- Автор вопроса
Thomas
The best you can do is a HEAD request per hour and...

Can I do the same with Content-Length? My question is, does content-length automatically gives the size of webpage or it is manually set. Like if an element is added in the webpage can I know that with Content-Length?

Saurav
What can I do with Data header? It just gives the ...

No, it gives the date of the last time the page was edited usually?

Saurav- Автор вопроса
Thomas
No, it gives the date of the last time the page wa...

I tried, it gave the time on which response was sent (or maybe something is different with that site)

Saurav
Can I do the same with Content-Length? My question...

An element could be replaced with another element of the same size, then the total length would be the same

Saurav- Автор вопроса
Link 🪈
An element could be replaced with another element ...

Yup but that's highly unlikely in that site (it's a college website where lecture notes are uploaded)

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