Best practices for optimizing pages [

For the structure of HTML, is a good rule:

• Place important content at the beginning of the HTML;
• Use HTML tags as possible relating to the structure of the content presented (semantic) and always verify that the code pages are formally valid. to make content more "accessible" even for crawlers;
• Appropriately differentiate the titles of the various pages of a site, make clear and consistent with the content of the page should contain the keywords of greater weight;
• Avoid sending information to uncontrolled or unnecessary (potentially harmful) through <meta> tags: browsers ignore them, no crawlers;
• Avoid the use of JavaScript to handle the navigation, because the crawler does not interpret the scripts and not follow these links. Instead, use standard shortcuts inserting tags with the attribute <a> <href>. The latest generation of browsers will have problems managing links contain both an address in href that a call to a JavaScript onClick event handler: if it is deemed necessary, it is possible to insert and it will run before connecting real. It is however also important to remember to insert the link using the href attribute to the benefit of non-standard browsers, browser accessible, and crawlers.

Regarding the management of servers and URLs, however, you should:

• If possible, choose the URL of the page so it contains the keywords most likely to occur, or which is descriptive and possibly similar to the title of the page itself;
• Avoid if possible the sending of parameters for possible application on the server side through the inclusion of a question (query) in the page, ie the pairs of parametro=valore after a question mark after the address page http://www.sito.it/percorso/pagina?parametri=valori Some search engines will download only the page and index base, regardless of the query;
  • Furthermore, if the query contains specific information about the session (eg session ID, which vary for each visitor) even Google gets a unique URL for the page, and can draw disparate conclusions negative. For this type of information is appropriate to use cookies^;
• Avoid using non-HTTP redirects (via tag <meta http-equiv="refresh">), because it is said that the search engine will follow. It is also widely thought that their presence would penalize the ranking of a page. Instead implement any HTTP response with a redirection redirection (3xx codes);
  • Furthermore, each redirection done via tags <meta http-equiv="refresh"> is contrary to the checkpoints 7.4 and 7.5 of the WCAG 1.0;
• Careful not to serve different content to crawlers (Cloaking) attempting to recognize the user agent string or the IP of the bot that scans our pages. It is a harmful practice that exposes the real danger of cancellation by the indexes of the engines;
• Implement robots.txt and sitemap.xml files to indicate to search engine crawlers what content to index and what to exclude from indexing.

Ottimizzazione delle immagini [ Image enhancement [

The search for images is the second type of research on Google. To ensure that images are indexed and searchable by search engines, contributing to the searchability of the page where they are displayed, the image must have a URL that describes the content of the image (eg / images / mobile_rosso. jpg) and there must be an alt tag description (what appears to be descriptive of the image).

Optimizing PDF files for

The optimization of the documents in PDF format provides some assistance when you created the file.

The most important elements to be completed correctly for placement on the SERP of a PDF document are:

• if it consists of several keys to use the hyphen to separate, for example, if the PDF file talking about pets use the following file name: animal-domestici.pdf
• the internal properties to the document: click on "File" - "Properties" and fill necessarily "Title", "Subject" (which would be the description), "Author" (you can put the name of the site) and "Keywords".
• The title of the document: If the document does not have a title, Google will be to attribute one. Better, then, indicate the title you want to give the document using the font: Verdana, Italic and centered.

Regarding the inclusion of a link within the pages, note that a pdf file is read by Google as a kind of web page in its own right and is therefore a backlink to your site. It is important to tackle questions related to the link, ie, enter the exact reference page. For example, if we have a PDF that talks about animals on a portal of animals, you'd better put the link to the page that talks about exactly the home.