The Working of a Search Engine

September 27, 2017

As the name suggests, a search engine is basically a program that has been designed for Internet users to search the World Wide Web for relevant information based on the keywords entered in the search bar. The most common search engines include Google, Yahoo and Bing.

Search Engine working

There may be slight variations in the way each search engine works, but generally, a search engine has three main functions:

  • Searching the Internet for information based on words
  • Listing the information and where it was found in the form of an index
  • Displaying the relevant results to users when they search for those words or phrases

Making of the Index

Tiny computer programs, known as web crawlers or spiders, have the job of browsing the Internet and storing information from every page that it visits. These programs usually start with the very popular pages and the ones having heavily-used servers.

Search engine page indexing

When visiting a new page, the web crawler copies the URL of that page in the index. Then, it follows the rest of the links on the same page and repeats the process of copying and listing. Gradually a very big index, carrying information of numerous web pages is formed. This information is then provided to the search engines that bring you the results of your search.

There are some sites the web crawler does not have access to, most probably because those pages use computer codes to prevent the crawler from reading them. This is done to ensure that certain personal information like bank account details is not revealed to anyone using the search engine.

Getting the results

On a daily basis, a search engine receives millions of pages from web crawlers. It sorts pages accordingly and shows you the results in the order that it thinks will be the most useful. The most popular search engine, Google uses an algorithm known as PageRank, which is used for improving search results on the Internet.

SERP

The more the number of links referring to a certain webpage, the more important that page becomes for PageRank. Apart from this, other aspects like time-to-time updation of pages and whether the domain is trustworthy or not is also taken into consideration by the search engine before providing any results.

While the basic process remains the same for all search engines, due to slight differences in operation, the results may vary. As you type a keyword in the search bar, the search engine will sort through millions of pages stored in the index to find the match to your question – all in just a few seconds.

Getting results on a search engine seems to be very simple and millions of users use a search engine to get answers to their queries every day. However, the working of a search engine is not that simple. It involves a minutely detailed process and methodology, which needs to be updated time and again in order to remain relevant.

If you have any questions on search engines or how to use search engine optimization to improve your business, drop us a message and we’ll get in touch with you.


Http or Https? What should be used for SEO purpose?

October 14, 2014

Http or Https? Which is a better option for SEO purpose? Let’s find out the pros and cons for using http and https for SEO purpose?htpps

Many people come across this and wonder what the difference between these two is. Let’s clear the doubt and also learn how your SEO can benefit with it.

Difference between HTTP and HTTPS

HTTP:

To communicate over a network, a set of procedures must be followed. This set of procedures is called a protocol. HTTP (Hyper Text Transmission Protocol) is a protocol used in networking. When you type a web address in your browser, your computer becomes the client and the computer being requested for the information becomes the server.

The client follows HTTP protocol to make a connection and fetch information from the server. The information sent and received floats over freely over the internet and no encryption is done over the information. Thus, the information is unsecured. The port used for communication is 80 and the URL(Uniform Resource Locator) begins with “http://ittisa.com”

HTTPS:

The problem arises when information has to be secured while client communicates with server e.g. a financial transaction, where the information is too important to be shared on or float freely over the internet.

Here comes the HTTPS protocol, which is same as HTTP but is for secure file transfers. The information sent through HTTPS protocol is encrypted and hence a third-party cannot read it. HTTPS is HTTP and SSL protocol combined.

Connecting through HTTPS requires trusted public key and digital certificates to be sent to the server to confirm authenticity. The port used for HTTPS is 443 and the URL (Uniform Resource Locator) begins with “https://www.ittisa.com”.

How does it matter in SEO? Why should you switch to HTTPS?

Pros of using https for SEO:

  • Ranking – HTTPS is now being used as a ranking signal and Google is giving a boost to the websites with HTTPS connection.
  • Security – If you are an ecommerce website, you will need to reassure your customers by using a HTTPS connection. It enhances user performance.
  • Preserving more data – When the traffic passes from HTTPS site, the important data will be preserved but in case of HTTP being used, the information will be discarded in the traffic.

Cons of using https for SEO:

  • Speed can be an issue – Since going from http to https is going to require more frequent connection to server for authenticating the certificates, speed may be slightly reduced.
  • Cost– Extra cost will be required to buy SSL certificates. If you have a large data set, it might be a little complex to move everything from HTTP to HTTPS

Why have the SEO guys not made the switch till now?

In the past, folks believed any switch to HTTPS through 301 redirects would incur a loss of link equity, estimated around 15%. Because of this, many webmasters didn’t want to switch.

Now that you have decided to take a step further in improving your reach through enabling HTTPS, let’s see how to do it.

How to enable HTTPS for SEO?

  • All your links or pages should start from HTTPS. A webserver can be used in between to redirect the HTTP pages to HTTPS, but without it also will not cause a problem and will be less expensive.
  • Decide what kind of certificate you need: single, multi-domain or wild-card certificate.
  • Use 2048 bit key certificates.
  • Use 301 redirects to direct all HTTP URLs to HTTPS.
  • Migrate your social shares. Edit your site so that you are able to maintain the social shares.
  • Register HTTPS version to Google and Bing.
  • Update robots.txt file.
  • Use Google’s help document for complete guidance.

NOTE:

  • If only a part of website is turned to HTTPS, note that only the pages with the SSL enabled will be boosted for rankings.
  • Implementing it involves complexity, risks, and costs.
  • Lastly, there are a lot other things you can do to improve your rankings and switching to HTTPS is just one of them.

For more information and help to make your reach better, we at ITTISA will be glad to help you. Write to us at contact@ittisa.com or connect at Facebook.

Have a great day!