On this site you can find step by step guides for Chrome, Firefox 3, Firefox 2, Internet Explorer 8, Internet Explorer 7, Internet Explorer 6, Safari and more on how to refresh your cache.
But it doesn’t try to answer any questions about how the image caching works, and how to get around it. To investigate how it actually works, we created some code to generate random images and send these in emails.We then measured when and how the image was retrieved from the host server. You can download the source file at the end of this post.The problem here is that Google’s search results are in a constant state of change.Below I will talk about how to better understand how often Googlebot crawls your site and why its different for every website.So when you visit the same page for a second time, the browser speeds up display time by loading the page locally from cache instead of downloading everything again.
Although storing Internet cache makes web browser faster as it usually takes your computer less time to display a web page when it can open page's elements or even the entire page from your local Temporary Internet Files folder, You sometimes want to overrule the Internet cache, for Example to see changes you made to a webpage you just uploaded.
From my experience, factors that contribute to quicker crawling and indexing revolve around: Throughout my career, I have had sites rank changes in as little as 30 seconds and as long as a few weeks.
When I worked, in the publishing industry, our site would stream out new content, like a fire hose, and Google would quickly crawl it and index it almost instantaneously.
This is great for speed and reliability, and also means as a marketer you can send images as part of your email communication. A common practice in email marketing is to place “tracking” images inside html emails in order to measure who opened which email when.
A very important piece of information, which can be used both legitimately and nefariously.
One time, during an earthquake, I tested the indexing speed of our website with Google.