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salam every one, this is a topic from google web master centrale blog: Your visitors may stumble into a 404 "Not found" page on your website for a variety of reasons:
  • A mistyped URL, or a copy-and-paste mistake
  • Broken or truncated links on web pages or in an email message
  • Moved or deleted content
Confronted by a 404 page, they may then attempt to manually correct the URL, click the back button, or even navigate away from your site. As hinted in an earlier post for "404 week at Webmaster Central", there are various ways to help your visitors get out of the dead-end situation. In our quest to make 404 pages more useful, we've just added a section in Webmaster Tools called "Enhance 404 pages". If you've created a custom 404 page this allows you to embed a widget in your 404 page that helps your visitors find what they're looking for by providing suggestions based on the incorrect URL.


Example: Jamie receives the link www.example.com/activities/adventurecruise.html in an email message. Because of formatting due to a bad email client, the URL is truncated to www.example.com/activities/adventur. As a result it returns a 404 page. With the 404 widget added, however, she could instead see the following:



In addition to attempting to correct the URL, the 404 widget also suggests the following, if available:
  • a link to the parent subdirectory
  • a sitemap webpage
  • site search query suggestions and search box

How do you add the widget? Visit the "Enhance 404 pages" section in Webmaster Tools, which allows you to generate a JavaScript snippet. You can then copy and paste this into your custom 404 page's code. As always, don't forget to return a proper 404 code.

Can you change the way it looks? Sure. We leave the HTML unstyled initially, but you can edit the CSS block that we've included. For more information, check out our guide on how to customize the look of your 404 widget.

This feature is currently experimental -- we might not provide corrections and suggestions for your site but we'll be working to improve the coverage. In the meantime, let us know what you think in the comments below or in our group discussion. Thanks for helping us make the Internet a more friendly place!

Written by Sahala Swenson, Webmaster Tools team
this is a topic published in 2013... to get contents for your blog or your forum, just contact me at: devnasser@gmail.com

from web contents: Make your 404 pages more useful 2013

Seo Master present to you:
Koenigsegg CCX

The Koenigsegg CCX started off with in a small factory somewhere in the middle of Sweden and it was a project which was from the start seeking for the world to take notice. The guys at Koenigsegg knew that they had to take hold of the US car market and as a result the car was
designed based on this basis. From the onset the car had a focus on this market and did everything to make sure that the regulations for them to be able to sell in the US were met.

The inner workings of the CCX

Although the car had been in development for a long time the unveiling of the car only came in 2006 at the Geneva Motor show. The car had a very performance based body shape that was specifically designed to meet US regulations and it also had an in house built engine. The motor was a huge 4.7 liter twin supercharged V8 which reved like a smaller engine but had enough torque to pull a truck. The big V8 produced 795 hp and it was capable of speed that were just too dangerous to the point that the car was electronically limited.

Koenigsegg Engine

When it came to power the designers at Koenigsegg could not get enough of it and as a result they simply could not use anyone else's motor. They ended up custom building their own motor which was constructed from an all aluminum composite. The block was heat treated to ensure that it could withstand the massive amount of heat and pressure from those twin superchargers and still be able to keep its integrity. The power plant is built and tested off site and goes through stringent tests that are akin to F1 testing procedures for engines. The cars dry sump system enables the octane fuel that it uses to become more economical and as a result on the open road this car is capable for 18 mpg, and for a car this powerful this is a massive achievement. To deal with this amount of power the car had to have a torque sensitive limited slip differential to counteract the likeness for the wheels to spin in flat out turning situations.
As the car needed to be as light and as strong as possible there was only one material that would suffice for the designers at Koenigsegg and thats carbon fiber. No only was the chassis made for the lightest/strongest material put on a road going vehicle the carbon fiber itself was reinforced to make it stronger with kevlar and aluminum honeycomb composites to ensure that the body could withstand the punishment that the car would go through. The car also featured a very lean and low slung double bubble roof which improved aerodynamic efficiency. Multiple air intakes helped to keep the engine cool as it was mid engined layout. To improve upon the already aerodynamic body there was a smooth finish applied to ever CCX which allowed the car to create a drag coefficient of only 0.30, this aerodynamic efficiency was only spoilt by the need and application of the rear spoiler which allowed car be somewhat controllable at high speed in the corners.

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Stopping Power

With all the speed that the CCX commands it would not have been cleared to be sold in most countries without the brakes being on point. The car offers carbon fiber wheels as an option with this option being around 5 kgs lighter than standard alloy wheels. The brakes themselves are carbon ceramic brakes which means that the material that they're made out of will make it virtually impossible for them to fade under heavy use.

CCXR

After the success of the reveal in 2006 there began works to have another more aggressive version of the CCX this was to be powered by the same engine. Although the power plant was the same the car did not only run on the standard octane petrol but it was also able to burn ethanol fuel. The car burned fuel more economically due to its modified fuel injectors and upgraded piston rings which helped increase the power to a 1000 horsepower. This amount of power is only available if the car is running on the ethanol fuel. Although there were some minor differences between the CCX and the CXXR , most of it was virtually the same to its predecessor.

Motorsport and Legacy

A track version of the CCX was made to compete in the FIA GT Championship the car that resulted was named the CCGT. Although it was based on the CCX the car had been changed to further suit the needs of racing conditions. The car featured a bigger engine and as result of trying to stamp out flat spots in the rev range the cars superchargers were removed. The weight of the car was already very low and due to this the car easily met weight regulations. Unfortunately for Koenigsegg the rules for competing in GT1 changed and as a result the CCGT was not able to compete in races.

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2013, By: Seo Master

seo Sports Car The Koenigsegg CCX 2013

Seo Master present to you:
Tata nano has a two cylinder 623 cc, 33 horsepower rear mounted multi-point fuel injection petrol engine. This is the first time a 2-cylinder gasoline engine was used in a car with single balancer shaft. The Tata Nano is 3.1 meters in length, 1.6 meters in height, and 1.5 meters in width with a wheelbase of 2230 mm and ground clearance of 180 mm. 2010 Tata Nano can
comfortably seat 4 people with spacious leg space and head room. Hope Tata Nano's specifications and the great set of features give the biggest bang for your buck.

2010 Tata Nano Specifications and features:

 Plenty of great features including crumple zones, tubeless tiers, seat belts, all steel metal body, intrusion resistant doors, fuel cut off in case of collision, strong seats and anchorages. Tata nano runs from 0 to 60 kph, hitting a top speed of 105kph. It offers a high fuel affiance of 20 km per liter. 


Deluxe Tata Nano Special Features:


Deluxe Tata nano has some great features including air conditioning / heater, speedometer, odometer, body colored bumpers, reclining adjustable seat and folding rear seats. It comes in various colors such as ivory white, champagne gold, lunar silver, bright red and summer blue.
Luxury Tata Nano Special Features:
 
Luxury Tata nano has alloy wheels, 3 spoke steering wheel, front and rear fog lamps, air conditioning / heater, body colored bumpers, front power windows and central locking.

The great thing about Tata Nano is the price point at which the car can be bought. The price is $2,500 (equivalent to just Rs. 1 lakh) makes it a wonderful buy for the economical consumer.

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2013, By: Seo Master

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