caching and indexing

[oliviasmith]

What is the difference between caching and indexing? which occurs first?

[myseopandit]

Cache - Crawlers based search engines develops program to scan your webpages.

Index - After Crawling, Search engines visit you webpage, then follow links to other pages within a site.

[purnima]

- Caching is to know that you are in eye of Google.
- Indexing is the process of making a webpage searchable on search engine.
This information is as per my knowledge...

[deepakg]

Indexing is where search engine has crawled the web and ranks the URLs found using various criteria and places them in the database, or index.

Caching is where copies of web pages stored locally on an Internet user's hard drive or within a search engine's database.

[shweta.tiwari]

caching means when crawler see your website and indexing means crawler add your website in google in google's index.

[selina]

Catching is the process that takes place when Google spider crawls your website and keep it in its cache and after crawling your website Google spider gives a index to your web-pages, which is used for search results and it is known as indexing

[diviny]

Indexing: Record (names, subjects, etc.) in an index.
Caching:Store (data) in a cache memory.

In general caching will be done first in order to index something.

[searchoptimal]

caching occurs first then indexing.Indexing means crawler added your site in google index.Caching means crawler see your website.

[deepakg]

Indexing is a process to do a web search on search engines, while the process of caching refers to providing a snapshot of print content.
If we have a new website after first search engine crawler will read the site and after that, it will store all information in its database index in a different format, it will not place the content posted. As a result, the site appears in the results of search keywords optimized.
Google also takes a snapshot of each page on a web site and stores it in a different database known as cache database.

[mkjohn]

caching means search engine crawler see your website for indexing and indexing means your website come on search engine index. So, According to me caching occurs first then indexing.

[regans]

Different SE do crawling and indexing in different ways. For example, sites that have no-follow links pointed to them aren't crawled nor indexed by Google, but yahoo crawls and indexes them, only doesn't count them for ranking. So both processes of caching and indexing take place prior to page ranking and don't necessarily determine it.

[turkeyproperty]

caching means search engine crawler see your website for indexing and indexing means your website come on search engine index. So, According to me caching occurs first then indexing.

Sorry but I have to disagree. Caching does not mean the crawler has seen a website, Google’s cache is a snapshot of a website as it appeared on a certain date, so that if for any reason the site cannot be reached by a browser they can look at the cache instead.

Indexing means that Google has found your website and begun crawling it, though it may not find all the pages at once.

The cache is made during the crawl, though it may not appear immediately. When a new site or page is published, it will be searchable as soon as it has been indexed but it may not have a cache straight away.

[turkeyproperty]

In its simplest form, an index is a list of contents. In terms of search engines, it is a list of the urls on a website that the SE has crawled. To see which pages of a site have been indexed, type site: followed by the domain name (without the www.) .
for example: site:yourdomain.com
It is not a measure of the number of times your site has been crawled (visited) by search engines, it simply means that they have been crawled.
The cache is an image of the site the last time it was crawled, though it may take a few days to be updated after the crawl. If you click on the cache in google it will explain at the top of the page that this was the cache at whatever date, and that the current page may be different now.
When you view a google search page, the sites are shown as they appear in the cache. This is because it is faster for google to do this. But when you actually go to the site, you will see it as it is today.

[webasterind]

They are approximately same.



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Sandiyasolutions.com

[mtrick]

Google Caching means what crawler find in website pages like link text image etc. than indexing is next synchronization process for these data in Google database .

[turkeyproperty]

If you try to visit a web page but for some reason it is not available, if google has a cache for it you will see a message asking if you would like to view that instead. It will tell you the date of the cache, and will explain that the current page may be different. That's because the cache is a snapshot of the page taken when it was last crawled, i.e. it is what google has stored in its memory.

When you make a google search, the information you see on the ten listings on each page of the search is from the cache, because it is faster to pull the information from its own database (popular sites will be crawled more often than less popular ones, so the cache date will be more recent for some sites than for others). However, if you decide to click on a listing it will take you to the current page.

So if for example you made a change to the description of your own website, if you then searched for one of your keywords you would see the site in the listings with the original description, because you are viewing google's cache. However if you then went to your site, the new description would be shown. But the next time your site was crawled by google the cache would be updated and so the description would be updated in the listing.

The first difference is not between caching and indexing, but between caching and current (the index is something else altogether). The cache is the stored version, the current is what it is right now.

If you look at the index in an encyclopaedia or other reference book, there are alphabetically arranged lists of words and terms, with references to the pages within the book that contain them.
The google index is very much the same, so that when your web page is crawled the search words and terms within the title, the content etc are added to the index. Then one someone searches for something, if their search matches what google has indexed from your page, it will be displayed along with all the others that match the search word or term. Depending on how google ranks your page will determine where it is on the list it shows the browser.

To put it in basic terms, when a page has been indexed it is searchable. Before it is indexed it is still live on the internet and can be reached by its url, but google cannot match it to search terms entered by browsers.

As to which comes first, I'm not sure why it really matters but the googlebot gathers all the information at the same time but then processes it so that you will not neccessarily see the results simultaneously. However, google will not be able to show the option to view the cached page until after it has been indexed, because until then it will not appear in its listings.

[Clarkjackson]

What is the difference between caching and indexing? which occurs first?

Indexing means: you page has crawled but it doesn't mean it has been cached

Cache: a copy of your page has been stored in index