âm thanh ánh sáng PHONG

What is XML Sitemap?
In general, this is a list of URLs for your website in a form of XML file (it also known as Google Sitemap because it was introduced first by Google). Besides that it allows you to include additional information about each URL such as the date it was last updated, how often it changes, and how important it is. XML format ensures that this information can be easily processed on different kinds of computers, applications and systems, so Search engines (Google, Yahoo, Bing, Ask, AOL etc) won't have any problems with understanding your sitemap files.

XML Sitemap sample:  


          http://www.example.com/
          2005-01-01
          monthly
          0.8
          http://www.example.com/about.htm
          daily
   

The sitemap example above contains 2 URLs and all of the allowed optional tags:<lastmod>;<changefreq> and <priority>.

There are a couple of limitations imposed by Google: a single XML sitemap file can contain not more then 50,000 URLs and may not be larger than 10 Megabytes. 

Why do you need a Sitemap

Because it allows you to inform search engines (Google, Bing, Yahoo etc) about the pages on your website. That increases its visibility to search engines, and ensures coverage of those your web pages that may not be discovered otherwise. They provide additional information about your site to search engines, complementing their traditional methods of crawling the web. All the biggest search engines are using the same XML-based protocol. This means that having an XML Sitemap will let Google, Yahoo, Microsoft's Bing (MSN), and Ask have up-to-date information any time you upload a new map file to your server.

XML Sitemaps are especially helpful if:

• You have a brand new website

• Your web-site has dynamic content

• Your have got a lot of pages

• You don't have desired Google PageRank

• Your website has complex navigation

• Our free online Generator features unique combination of user-friendly interfaces with very rich functionality. 

• The mapper script has the most accurate in the Internet handling of dynamically generated web pages (e.g. created by Joomla), Cookies, session IDs, page redirects (including javascript redirects!), foreign languages, escaped and encoded URLs, and even Vector Markup Language (VML). The generated sitemap files are accepted by Google, Bing, Yahoo, Ask, etc and and have proven to be 100% compatible with all major search engines!

• The generator supports national languages (any local charsets and character encodings including UTF-8 etc) and has got a sophisticated retry logic to deal with distant hosts and slow networks. 

• Page priorities can be either generated automatically or set manually. 

• The Web-Site-Map crawler always obeys robots.txt files and follow robots.txt rules as per Google's recommendations.

• Web-Site-Map webbased service is 100% online tool. This means that you don't need to install any software on your computer, or upload any PHP scripts to your website. Moreover - you will be able to create your free site-map files on any computer no mater if it's Mac, PC, iPad, or Android device, and whether it runs Windows, Mac / Apple OS, OSX, HP WebOS, Linux or UNIX. Microsoft Windows 7 is fully supported. The same is true from content management perspective: you may manage you content manually or use CMS like Joomla - in all cases our crawler will always work well for you!

• Our Google/XML/Sitemap creator comes with a free broken link checker that detects and reports broken links right while making your Google site-map. Note that in order to use this broken-links checker you need to make a map with our online xml sitemap maker. As an alternative way of addressing the link rot problem you can consider our brand new standalone broken link checker that is capable of reporting all major linking problems and HTTP reponse codes. So you can use the the checking service any time even without any google site-map files generated. Remember to use Link Checker tools periodically to ensure constant health of your Internet resources. Joomla and other dynamic content management system are fully supported! 

• Our online service also offers a build-in Sitemap validator that validates generated site-map files and reports whether the XML is well-formed and valid. Note that wellformness and its compliance with Google's XML Schema are critical factors: otherwise Google, Bing, and Yahoo etc won't be able to understand your sitemap. Choose you sitemap generators and other SEO tools wisely to make sure that your web optimization efforts won't be wasted!

• New: Our free sitemap creator has very high page limit which became dynamic recently: now the value is assigned based on actual server resources availability (the less busy our servers are the higher current page limit is) and thus the value changes very frequently through the day. See its most recent value here. (it's not 1500 / 2500 / 3000 pages we used to have - it's much higher now, and thus can fit even bigger web portals easily)