If you really want to rank on first page of search
engine than it’s so important to follow Google image publication guideline
before you publish image on you website. 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.
Few basic rules
that search engine Google like
Avoid embedding 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 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. Try to make your filename a good description of the subject matter of
the image. For example, my-new-black-kitten.jpg is a lot
more informative thanIMG00023.JPG. Descriptive filenames can also
be useful to users: If we're unable to find suitable text in the page on which
we found the image, we'll use the filename as the image's snippet in our search
results.
The alt attribute is used to describe the contents of an
image file. It's important for several reasons:
It provides Google with useful information about the subject
matter of the image. We use this information to help determine the best image
to return for a user's query.
Many people-for example, users with visual impairments, or people
using screen readers or who have low-bandwidth connections—may not be able to
see images on web pages. Descriptive alt text provides these users with
important information.
Not so good:
Better:
Best:
To be avoided
dog pup pups puppies doggies pups litter puppies dog retriever
labrador wolfhound setter
pointer puppy jack russell terrier
puppies dog food cheap dogfood puppy food"/>
Filling alt attributes with keywords ("keyword
stuffing") results in a negative user experience, and may cause your site
to be perceived as spam. Instead, focus on creating useful, information-rich
content that uses keywords appropriately and in context. We recommend testing
your content by using a text-only browser such as Lynx.
Anchor text
External anchor text (the text pages use to link to your site)
reflects how other people view your pages. While typically webmasters can't
control how other sites link to theirs, you can make sure that anchor text you
use within your own site is useful, descriptive, and relevant. This improves
the user experience and helps the user understand the link's destination. For
example, you might link to a page of vacation photos like this: Photos
of our June 2008 trip to Ireland.
Provide good context for your image
The page the image is on, and the content around the image
(including any captions or image titles), provide search engines with important
information about the subject matter of your image. For example, if you have a
picture of a polar bear on a page about home-grown tomatoes, you'll be sending
a confused message to the search engines about the subject matter of
polarbear.jpg.
Wherever possible, it's a good idea to make sure that images are
placed near the relevant text. In addition, we recommend providing good,
descriptive titles and captions for your images.
Think about the best ways to protect your
images
Because images are often copied by users, Google often finds
multiple copies of the same image online. We use many different signals to
identify the original source of the image, and you can help by providing us
with as much information as you can. In addition, the information you give
about an image tells us about its content and subject matter.
Webmasters are often concerned about the unauthorized use of their
images. If you prevent users from using your images on their site, or linking
to your images, you'll prevent people from using your bandwidth, but you are
also limiting the potential audience for your images and reducing their
discoverability by search engines.
One solution is to allow other people to use your images, but
require attribution and a link back to your own site. There are several ways
you can do this. For example, you can:
- Make your images available under
a license that requires attribution, such as a Creative
Commons license
that requires attribution.
- Provide a HTML snippet that other
people can use to embed your image on their page while providing
attribution. This snippet can include both the link to the image and a
link to the source page on your site.
Similarly, some people add copyright text, watermarks, or other
information to their images. This kind of information won't impact your image's
performance in search results, and does help photographers claim credit for
their work and deter unknown usage. However, if a feature such as watermarking
reduces the user-perceived quality of your image or your image's thumbnail,
users may click it less often in search results.
If you don't want search engines to crawl your images, we
recommend using a robots.txt file
to block access to your images.
Create a great user experience
Great image content is an excellent way to build traffic to your
site. We recommend that when publishing images, you think carefully about
creating the best user experience you can.
- Good-quality photos appeal to users more than blurry,
unclear images. In addition, other webmasters are much more likely to link
to a good-quality image, which can increase visits to your site. Crisp,
sharp images will also appear better in the thumbnail versions we display
in our search results, and may therefore be more likely to be clicked on
by users.
- Even if your image appears on
several pages on your site, consider creating a standalone landing page for each image,
where you can gather all its related information. If you do this, be sure
to provide unique information—such as descriptive titles and captions—on
each page. You could also enable comments, discussions, or ratings for
each picture.
- Not all users scroll to the
bottom of a page, so consider putting your images high up on
the page where
it can be immediately seen.
- Consider structuring your directories so that similar images
are saved together. For example, you might have one
directory for thumbnails and another for full-size images; or you could
create separate directories for each category of images (for example, you
could create separate directories for Hawaii, Ghana, and Ireland under
your Travel directory). If your site contains adult images, we recommend storing
these in one or more directories separate from the rest of the images on
your site.
- Specify a width and height for
all images. A web browser can begin to render
a page even before images are downloaded, provided that it knows the
dimensions to wrap non-replaceable elements around. Specifying these
dimensions can speed up page loading and improve the user experience. For
more information about optimizing your images, see Optimizing Web Graphics on the site Let's
Make the Web Faster.
With image search, just as with web search, our goal is to provide
the best and most relevant search results to our users. Following the best
practices listed above will increase the likelihood that your images will be
returned in those search results.