This article is about optimizing the images you have on your website so they are search engine-friendly.
1. Optimize image filenames for SEO purposes.
The name of an image file can be just as important to getting found in search engines as keywords are. To optimize the filename, use a relevant keyword, or two, that's easy for visitors to remember when looking through their list of favorites or bookmarks. Then include the year and month it was taken since this will help visitors find what they're looking for more quickly too. Also include these two pieces of information if you only have one image per page: make sure to put a slash between them, like "/2009/1222-12_34_56_78.jpg".
2. Optimize alt tags for your images.
Always include an alternate text tag for each image on the page, even if it's just "Photo" or "Picture of..." Include a keyword at the beginning of the alt tag, but make sure to write it out as word instead of using all capital letters, since this isn't how people normally talk! Make sure there are no spaces before or after the keyword either. Also ensure that you have optimized both the filename and alt tag together - do not use one without mentioning the other. Here is an example: <img src="mypicname" alt="Favorite car picture!">
3. Use reverseimage search engines to increase link popularity.
There are many reverse image search engines on the web, such as Google Images and TinEye. To make your images found in these search engines: upload them to a free image hosting website like Imgur or Photobucket and then submit the links to the reverse image search engines using their "Submit an Image" forms. This allows other websites' visitors who find your images interesting to see where they originated from and click through to your link! Tip: add a backlink to this article so that other people can learn how to optimize their SEO for images too.
4. Create unique descriptions for all of your photos/pictures/etc...
If you want other people's description of your photo(s) to be on your website and on other websites, make sure they are different. Do not use the same description on more than one photo or image! You can use a free word counter like Manage Words to ensure that you do not go over 200 words for each page. Keep in mind that some search engines will still index descriptions as well as tags (even if these aren't visible) - so don't use any of those either, even though it can seem tempting!
5. Optimize alt text for images within articles.
If you include an image with an article, always include a relevant and unique alt tag so it is search engine friendly! Make sure the alt tag includes a keyword too Do this especially when including pictures, charts, graphs, etc. within an article because you want people who are looking for these things to find your website!
6. Include images in articles only if the page is about the image or related to it.
If you have a page on your site that is not related to any of the images on it at all, do not include any photos/pictures/illustrations - do not use images at all and instead replace them with icon buttons (like Blogger and Wordpress allow you to do). If you find yourself including lots of irrelevant images on a particular page, make sure they are linked to somewhere else (such as another webpage) or attached to another post or article! This also helps make your pages more engaging for visitors.
7. Include static images in articles only if the image is somehow related to the page's content or context.
However, when including an image within an article do not make it too distracting - you want people who are looking for particular keywords on your pages to see them easily, not get distracted by pretty pictures! Make sure that each of these images has a useful title (that includes a keyword), alt tag (that includes a keyword) and description (that includes a keyword). This helps with SEO for images more than any other kind of optimization! Here is an example: <img src="mypicname" alt="My favorite picture!">
Another great way of getting someone else's description of your image on your page is to link up to an image hosting website like Imgur or Photobucket and use their "link to this image" forms! Don't forget to include the proper keywords in the link text.
8. Optimize each image individually, not just at a whole for entire webpages/sites.
If you do only one of these 9 tips but ignore all of the others then it will be less effective than doing them all together. For search engines trying to crawl your site, images are no different from text - every single one has to be crawled before your overall rankings can truly improve. You should optimize each photo/picture/image separately (including alt tag, title and) because even if you optimize the alt tag on an entire page, search engines will still only pick up on one of them and not all of them (so that makes it less effective).
If your site is ecommerce or you otherwise have product images then make sure to follow these best practices for optimizing product images too.