How to optimize your website's images for Search Engine
Written by Ibraheem Sikiru
Published on 7/22/2019 9:37:23 PM
Image is one of the most important contents on the web. It gives pictorial representations of events. It summarizes a lot of things with complete transmission of logical senses in the communication lines. Search Engines including Google, Bing, Yandex, Baidu and the likes have great respect for indexing relevant images with websites.
On the major search engines, after text, image is the most search web contents such that some search engines have separate database for collecting image indexing.
This article talks about factors that being considered by the search engines to index image contents on your website. As well, the attributes that would be considered by the search engines to list your website on the first page for relevant image search queries.
First, let us discuss the factors the search engines consider to indexing an image into the image database. SRC:
SRC points to the location of the image file to be loaded and displayed on the image control. The best practice is to serve image files on our server to the image controls. This will optimize the page load time as Image control does not have to wait for handshaking and connection rerouting to an external website where an image file might be residing. Serving image files available on one's server to the image control also maximizes the page load speed and minimizes the load time because it encourages catching.
Website with fast page load speed and less load time stand the chances of being index than those with crawling features.
In search engine optimization, using image files that reside on your website's server is so important that this SRC is what is index by the search engines for listing against relevant search queries. Image file is a binary data which would be too big for search engines to save into her database. Asides, this causes database redundancy and poor performance which should not be experienced by search engine, hence the SRC that points to the image is indexed.
Consider the situation where you reference much of external images, it is like providing backlinks to the external websites. ALT:
ALT attribute tells the image control an alternative content to be displayed to the users should the image file fail to load from the specified SRC. Bad practice is in failing to meet user's satisfaction. If user is eager to view an image and the image file failed to be loaded into the image control, it should at worst display satisfactory description of the type of image that has failed to load. Image file might have failed to be loaded into the image control because of so many reasons including file not existing, file moved, file deleted, connection timeout, file reading timeout, too much redirection and the likes. ALT attributes tells the web browser to inform the image control to display an alternative form of the image, in textual form, though.
As Search Engine would not save the binary digits of an image file, to have an effective search operation, ALT is index as the search keyword for such an image. Your ALT should be an holistic description of your image file because this is the term against which search engines would test relevance of users' queries for listing on the Search Engine Result Page (SERP).
In search engine optimization for image, ALT is even very important than the image file itself.
It should be recalled that before search engine, an image with no ALT is like a college student with no matriculation number. SIZE:
Image size has great effect on optimizing a website for search engine. User Friendliness is a must for all search engines. An image that is not well sized will disrupt contents layout on the web page.
The best way to manage the sizing of an image file is to use cascading style sheet (CSS) and pass it to the class attribute of the image control. CSS will be best at managing image size on different devices and orientations.
This is great in maintaining quality user friendly experience with search engines and in returns, high rankings. LANG:
LANG is a very important attribute when it comes to image optimization for search engine. It tells the search engines what language is relevant for the image. This is taken serious by search engines to maintain accuracy and prevent pogosticking in satisfying users' queries.
Consider a situation when a relevant image in Chinese language appears in SERP for query submitted by an Arabian. Even the image might be relevant to the Arabian search query, the language barrier would render it useless and wastage of search engine resources. This is mostly useful in localizing search results on common images and servicing users with great accuracy. TRANSLATE:
TRANSLATE performs a simple but generous task. It tells browsers with language translating capability to translate the language of the image to user's preferred language. It makes image file to be more usefully available for more users with great click through rate.
Haven done all these, more traffics would be coming to your website through the image search engines.