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Vérifier vos titres et vos extraits de page - Centre d'aide Outils pour les webmasters. Google's generation of page titles and descriptions (or "snippets") is completely automated and takes into account both the content of a page as well as references to it that appear on the web. The goal of the snippet and title is to best represent and describe each result and explain how it relates to the user's query.

We use a number of different sources for this information, including descriptive information in the title and meta tags for each page. We may also use publicly available information, or create rich results based on markup on the page. While we can't manually change titles or snippets for individual sites, we're always working to make them as relevant as possible. Create descriptive page titles Titles are critical to giving users a quick insight into the content of a result and why it’s relevant to their query. Here are a few tips for managing your titles: As explained above, make sure every page on your site has a title specified in the <title> tag.

How snippets are created. Envoi d'un sitemap aux Outils Google pour les webmasters - Centre d'aide Sites. Balises Meta acceptées par Google - Centre d'aide Outils pour les webmasters. Avec les balises Meta, les webmasters disposent d'un outil efficace pour nous transmettre des informations relatives à leurs sites. Les balises Meta peuvent servir à fournir des informations à toutes sortes de clients. Chaque système ne traite que les balises Meta qu'il comprend et ignore les autres.

Les balises Meta sont ajoutées à la section <head> de votre page HTML et ressemblent en général à ce qui suit : <! Nous acceptons les balises Meta suivantes (et les éléments associés) : Autres éléments à connaître : Nous acceptons les balises Meta de types HTML et XHTML, quel que soit le code utilisé sur la page. Cette liste de balises Meta n'est pas exhaustive. 3.2 Gérer votre site à l'aide des outils pour les webmasters - Centre d'aide Outils pour les webmasters. Browser compatibility - Webmaster Tools Help. 3.4 Adapter votre site aux mobiles - Centre d'aide Outils pour les webmasters.

Trends. Image sitemaps - Webmaster Tools Help. Rich Snippets - Structured Data. Including structured data markup in web content helps Google algorithms better index and understand the content. Some data can also be used to create and display Rich Snippets within the search results. For example, the Rich Snippet at the right shows search results for a movie, including review stars, an aggregate rating value, and vote count — very useful to anyone searching for information about this movie. To make your pages eligible for Rich Snippets in search results, add structured data of the appropriate type to your content. Make sure to comply with any policies that each type has regarding Rich Snippet display. Once you've marked up your site's content, you can test it using the Structured Data Testing Tool.

Markup is also available for video search and local businesses, as described in those sections of the Webmasters documentation. Comment spam - Webmaster Tools Help. Comments are a great way for webmasters to build community and readership. Unfortunately, they're often abused by spammers and nogoodniks, many of whom use scripts or other software to generate and post spam. If you've ever received a comment that looked like an advertisement or a random link to an unrelated site, then you've encountered comment spam. Here are some ideas for reducing or preventing comment spam on your website.

Use anti-spam tools Most website development tools, especially blog tools, can require users to prove they're a real live human, not a nasty spamming engine. You'll have seen these: Generally the user is presented with a distorted image (often called a CAPTCHA, for "completely automated public Turing test to tell computers and humans apart") and asked to type the letters or numbers she sees in the image. Some CAPTCHA systems also support audio CAPTCHAs. Google's free reCAPTCHA's service is easy to implement on your site. Turn on comment moderation. Verification: HTML file - Webmaster Tools Help. Links to Your Site - Webmaster Tools Help.

To find a sampling of links to any site, you can perform a Google search using the link: operator. For instance, [link:www.google.com] will list a selection of the web pages that have links pointing to the Google home page. Note there can be no space between the "link:" and the web page URL. If you’re not seeing expected link data for a site, it may be that your site is indexed under a different host name. For example, if you're looking for links to make sure that you’ve added to your account, and then check the data for that site.

(Google recommends setting a preferred domain.) If you use Google Analytics to track site data, you can link your site to an Analytics profile created using the same Google Account. When you link your site to an Analytics profile, you'll be able to quickly access the Referring Sites report directly from Webmaster Tools. See a much larger sampling of links to a verified site: Not all links to your site may be listed. Do you need an SEO? - Webmaster Tools Help. What is an SEO? SEO is an acronym for "search engine optimization" or "search engine optimizer. " Deciding to hire an SEO is a big decision that can potentially improve your site and save time, but you can also risk damage to your site and reputation. Make sure to research the potential advantages as well as the damage that an irresponsible SEO can do to your site. Many SEOs and other agencies and consultants provide useful services for website owners, including: Review of your site content or structure Technical advice on website development: for example, hosting, redirects, error pages, use of JavaScript Content development Management of online business development campaigns Keyword research SEO training Expertise in specific markets and geographies.

Advertising with Google won't have any effect on your site's presence in our search results. Getting started If you run a small local business, you can probably do much of the work yourself. Choosing an SEO Precautions Helpful guidelines. Image publishing guidelines - Webmaster Tools Help. With image search, just as with web search, Google's goal is to provide the best and most relevant search results to our users.

Following the best practices listed below (as well as our usual Webmaster Guidelines) will increase the likelihood that your images will be returned in those search results. Don't embed important text inside images Avoid embedding important text in images for elements like page headings and menu items because not all users can access them. To ensure maximum accessibility of your important text based content, keep it in regular HTML. Tell us as much as you can about the image Give your images detailed, informative filenames The filename can give Google clues about the subject matter of the image. Create great alt text The alt attribute is used to describe the contents of an image file.

It provides Google with useful information about the subject matter of the image. Not so good: Better: Best: To be avoided Anchor text Provide good context for your image. Link schemes - Webmaster Tools Help. Cualquier enlace cuya finalidad sea manipular el PageRank o la clasificación de un sitio en los resultados de búsqueda de Google se considerará parte de un esquema de enlaces y estará incumpliendo las Directrices para webmasters de Google. Esto incluye cualquier comportamiento que manipule los enlaces a tu sitio, o bien los enlaces que procedan de tu sitio. A continuación te mostramos algunos ejemplos de esquemas de enlaces que pueden afectar negativamente la clasificación de un sitio en los resultados de búsqueda: La compra o venta de enlaces para manipular PageRank.

Esto incluye el intercambio de dinero por enlaces o publicaciones que contengan enlaces, el intercambio de bienes o servicios por enlaces o el envío de productos "gratuitos" a usuarios a cambio de que escriban sobre ellos e incluyan un enlace. Ten en cuenta que los enlaces de publicidad de PPC (pago por clic) que no transmiten la clasificación de PageRank al comprador del anuncio no incumplen nuestras directrices. Consignes aux webmasters - Centre d'aide Webmaster Tools. En suivant les consignes d'ordre général ci-dessous, vous permettrez à Google de trouver, d'indexer et de classer votre site.

Nous vous conseillons de lire attentivement nos consignes relatives à la qualité ci-dessous. Elles abordent en effet certaines des pratiques illicites susceptibles d'entraîner l'application d'une action manuelle pour cause de spam, d'une sanction de type algorithmique ou le retrait définitif du site concerné de l'index Google. Lorsqu'un site a été sanctionné pour cause de spam, il est possible qu'il ne s'affiche plus dans les résultats de Google.com ni sur nos sites partenaires. Consignes d'ordre général Veillez à ce que nous puissions accéder à toutes les pages du site depuis un lien situé sur une autre page accessible.

Le lien référent doit contenir du texte ou, pour les images, un attribut alt adapté à la page cible. Comment nous aider à trouver votre site ? Consignes relatives à la qualité Matt Cutts présente les actions manuelles appliquées au spam. Google.