What is a page cache?
A page cache is a copy of a web page that is saved at a specific moment and stored by the server.
This saved version is useful when the original page is not available due to problems such as internet congestion, sites being offline, overload, or simply removal by the site owner.
As a frequent internet user, you may have encountered the problem of trying to access a page and finding that it is offline. This can happen for various reasons, such as a server overload, connection problems, among others.
How to access a page cache
There are several services that store page caches so that we can have another way to access a particular site. One of the most well-known is Google, which usually maintains a recent copy of the page (1 to 15 days).
Another popular service is the Wayback Machine, which allows you to view the history of a page since 2006 when the site was founded.

Accessing cache through search sites
There are specific sites that centralize the cache search and redirect you to the server that made the capture of the page. An example is calendariodeferiados, where you can paste the address and click on "Google Cache" or "Archive.org".
Accessing cache directly on services
It is also possible to access the cache directly on search services, such as Google or the Wayback Machine. On Google, simply search and click on the down arrow next to the URL, selecting the "Cached" option.
In the case of the Wayback Machine, just enter the site and paste the desired URL. There, you will be able to view the entire history of a web page since 2006, when the site was founded.
It is worth noting that not all pages are saved on the Wayback Machine, but even so, it is a valuable tool for accessing a saved version of a page that is no longer available.