Jumat, 26 Agustus 2011

Web Hosting Bandwidth - An Explanation

By William MacMahon


"Bandwidth" is a title that you may have heard many web hosts, including your own, discussing from time to time. A simple definition of this term is that is how much data is passed over an internet connection from one set to another. Bandwidth is one of the most important services that a web host can provide and is usually measured in how bits are sent each second. The amount of data being used on a website varies depending on what the the website is being used for. Sites where there is a lot of interaction and communication will take up a bigger bandwidth and this means sites like forums or blogs take up more bandwidth than a more common website. These sites offer far more interaction with the opportunity to load up content and add debate or opinions which is why they take up more bandwidth. These websites will have a greater amount of traffic in comparison to standard websites provided by firms which is another reason why in comparison, the amount of bandwidth that is used by communication or network sites will be much higher.

It may help to break down how you can calculate your monthly website usage and this can be done very simply. The first step should be determining how much bandwidth your website uses, for calculation sake, lets say 20KB. The next step is to work out how many visits your site has per day, which for simplicity sake we shall say is ten hits. This calculations means your daily usage equates to 20 x 10. To get your monthly usage, you simply multiply your daily usage by the number of the days in the month. An important thing to remember is that some providers may list the bandwidth in bytes as opposed to bites.

8 bits = 1 byte and 1024 bytes = 1 Kilobytes

It is easy to use bandwidth unnecessarily and the biggest culprits are large sized graphics and a lot of customer comments. It is also fair to say that if the end user seeks to receive a lot of images or large amounts of data that they too will use a fair share of bandwidth. This has to be borne in mind when you are constructing your website. It is common to want to add a lot of cool audio and visual treats to your site but doing so will greatly increase your bandwidth consumption. Knowing how much bandwidth you expect to use will help you seek the right package for your usage but beware of web host providers not living up to their promise. There are some providers who will not deliver what they guarantee and this makes choosing the correct supplier an important task.

Understand the amount of bandwidth that fits your requirements.

When you are considering the amount of bandwidth that your site will require, there are many things to consider. There are many influences on the answer that is best for you and particular attention must be attributed to mathematic and technical issues. The available bandwidth will limit the amount of items you can offer on your website so for current and future projects, consideration has to be made. Given that it is likely you will want to update your website over time, it is advisable to leave some bandwidth in store to allow for progression. Allowing yourself the opportunity to contemplate how much bandwidth is needed for your site can allow you to make the best decision possible. A good way to get the best advice is to ask your web provider for advice about what would be the best product for you. The simplest way to determine the amount of bandwidth you need to use is on a monthly basis and this is why the majority of providers offer measurements in this manner. A way to measure bandwidth can be seen as:

The number of days per month times times the number of pages viewed times the number of visitors who use your site daily times the size of your page.

If you would like to offer a range of flexibility regarding bandwidth usage, the following calculation may be preferable:

[(Daily Visitors x Page Views x Page Size) + (Daily File Downloads x File Size)] x 31 x Fudge Factor

Note: These calculations have been created to work with the average figures for each element.

How traffic and bandwidth are linked:

Bandwidth and traffic are closely interlinked with each other. Visitors can experience best the bandwidth as they are the people who carry out various activities with the websites. If a visitor wants to download an MP3 files from a website into the computer, then 4MB traffic is created between the website and the user's computer. If the user is having a fast internet connection then the file won't take much time to get downloaded and hence the bandwidth consumed in the process would be low. The reverse happens if the internet connectivity is poor. Traffic is measured by the number of bits that are transferred on network connections.

Learn how to reduce the amount of bandwidth that you use.

Sometimes a bill can come out of the blue that leaves you catching your breath and the same can be said for your monthly bandwidth bill. If you have a pre arranged bandwidth limit, it is simple for your provider to state that you have went over your limit and charge you accordingly whilst requesting you reduce your usage. This request can leave many users not knowing what to do and what they should do for the best.

Each website is populated by a number of files and each file has a corresponding size. If a visitor comes to your site and accesses these files, there will be an impact on the amount of bandwidth that your site uses. Remember that it is your website and you can influence the use of by reducing or increasing the usage depending on the needs of the site. Given that it is your website, you can impose limits on the number of files or downloadable content that is made available on your site. Each individual file can have a large size by itself and if it is downloaded by a large number of users can have a great impact on the bandwidth that is being used. Anything that increases bandwidth use will increase the cost you incur. A simple example of this can come in a large graphic that is on your homepage which each visitor is required to download. If this happens a lot of times the amount of bandwidth being used will become excessive. Some people may decide to take this page away from their site but this is not always an option so it may be worthwhile trying to reduce the size of graphics or logos available. These changes may not seem a lot but it may make a noticeable difference when your next bill comes from your web host provider. Another opportunity to improve the amount of bandwidth you site uses is to take advantage of Cascading Style sheets as it is based around HTML files and these have a much smaller size.

Some bandwidth tips:

* Be able to have a rough estimate of the amount of visitors that access your site or may be likely to access your site at a later date. You can see why it can be of use to have a projection for monthly usage.

* There are options to buy un-metered bandwidth hosting. In such a plan you are charged higher than nay normal shared or dedicated hosting plan and in return the usage will be unlimited. The host won't monitor the bandwidth rating which is reflected on the left hand side of the control panel.

* Be sure to keep a note of any alterations that are made to your website. Knowing the up to date size of your site will allow you to accurately forecast your bandwidth usage and bills.

* If you can, keep the number of visitors comments to a minimum. You may wish to allow only pre-approved or carefully selected comments onto your site.

* Be sure to communicate regularly with your web provider and seek their advice on how best to maintain or improve your website. Not every change will lead to a rise in the amount of bandwidth your site uses but there can be positive impacts as well. By removing any files that are no longer deemed necessary can free up bandwidth to be used for other purposes.

* A better way to embed JavaScript may be to do it on an external site as opposed to having it placed on every page.

* Bandwidth can be eaten up by graphics with a large size so always ensure to load up graphics that have been reduced in size.

Last remarks:

There are many places to get advice on how best to use your bandwidth but the strongest advice would come from your web host. The advice that is offered by the firm should also be factored into the decision you make about provider to go with. There are many factors that will impact on how much your bandwidth costs you but the layout and content will have a lot to do with it. The amount of different factors that can have an influence on the cost involved means the support and advice from your web provider can be a vital factor in keeping your expenditure within budget. This support can be extremely helpful in combating in bandwidth theft. This occurs when other web users place links to graphics and images that are held on your site by linking to them from their site. This is an offense that carries a punishment and is not to be encouraged. This means that if you are advised of undertaking this activity you should always refuse. All decisions in life should feature some form of research and the same can be said for choosing which bandwidth provider to work with. Always be sure to communicate with your web provider to learn the best ways about the best ways to reduce how much bandwidth you use.




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