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search engines

Search engines are a great way to find out loads of information about a target website. When using a search engine it helps to have a rough idea about how they initially gather all their search data and the types of data which they may store. Crawling is the basic operation all search engines adopt. A search engine will scan through a website and record its content. Examples of some basic information it will record are page titles, keywords, links, sections and images. This crawling operation is performed automatically by what is referred to as a ‘spider’. The spider (also known as a ‘bot’) will then move on to any new links it finds, re check older links and also go to links people may have recorded in the search engine. The major search engine crawlers will also save a cached copy of the whole page. This may surprise some people because it enables pages to be reviewed even if the live website is offline.

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search engines Google.com

This is certainly the most widely know and used search engine and can be quite amazing in it’s usefulness in finding data. Simply typing search words into Google will find pages relating to some or all of the words you entered. This is just very basic use of a Google. They do also provide an advanced search facility which is very helpful in guiding you through more complex searching: https://www.google.com/advanced_search For even greater searching power, you can use the Google Search Operators described in the next section.

search engines

Google Search Operators

A search operator is a set of characters that joins search words to form a new, more complex search query. For example if you just type in ‘technicalfan.com’ to Google, you will get search results based on any website page containing the text ‘technicalfan.com’. Google will put what it regards as more relevant search results first, so in this way the technicalfan.com website is likely be top of the results. However, even the second or third result may refer to a website just containing the text ’technicalfan.com’. If you wanted to only search the technicalfan.com site for certain information, you could enter: site:www.technicalfan.com In this case ‘site:’ is a special operator telling Google to use the search characters ‘www.technicalfan.com’ in a very specific way. This will only return search results relating to this particular website. Even if you go to page 10 of the returned results, you will only find results relating to this website. Note however, there must not be a gap between the operator and the search text. If there is a gap, Google will simply regard these as extra words to search for in the regular way. Speech marks for quoted phrases can be used to search for a specific term rather than just individual words: site:www.technicalfan.com “technicalfan” In this example only results relating to the technicalfan.com

info:www.technicalfan.com

Google will return an entry which at first glance looks just like a regular entry. However if you look below the result on the results page, there will be a list of items enabling you to, for example, see a cached version of the site and sites which link TO this site:

Show Google’s cache of www.technicalfan.com

Find web pages that are similar to www.technicalfan.com

Find web pages that link to www.technicalfan.com

Find web pages from the site www.technicalfan.com

Find web pages that contain the term “www.technicalfan.com”

The following list of some of the possible search operators you will probably find useful, in each case showing operator, example of operator and a description: (Note: The search won’t work if you add any spaces between the operator and your search terms).

allintitle:

allintitle: technicalfan.com

Only documents containing the search words in the title.

allinurl:

allinurl: technicalfan.com

Only documents containing the search words in the URL. In the example, returned pages will have both ford and car in the URL.

cache:

cache:www.technicalfan.com

Will display Google’s cached version of the page.

info:

info: www.technicalfan.com

Will present some information about the corresponding web page.

intitle:

intitle:technicalfan.com

Documents containing the search words in the title. In the example, returned pages will have technicalfan.com in the title.

inurl:

inurl:technicalfan.com

Documents containing that word in the URL. In the example, returned pages will have technicalfan.com in the URL.

search engines

link:

link:www.technicalfan.com

Pages that point to that URL.

search engines

related:

related:www.technicalfan.com

Web pages that are similar to the web page you specify. In this case results will link to alternative well known news websites.

search engines

site:

site:www.technicalfan.com

Results limited to the site or domain you specify.

search engines

I hope that you understand my post. if you like this post then share my post, and comment on my post if you have any suggestion or Queries related to search engines. Thank you!

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