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How SEO & Web Accessibility Crossover

Updated 2019. Posted 2015. | By iAdControl.com



Global Accessibility Awareness Day (GAAD) was on 16th May 2019 - we thought it would be wise to relay the crossover between SEO and Web Accessibility.

Improving SEO & Web Accessibility means you are influencing factors such as:

  • Search engines will deem your website relevant - in-turn, ranking your website higher on Google.
  • Enhancing inclusive design - web users will understand your website pages better and every element of your website is more meaningful.
  • Reaching a wider audience, including people with disabilities - people with disability can cohesively navigate through your content, which means you are also on the way to addressing Corporate Social Responsibility (CSR).
  • Potentially meeting laws such as the EU Directive, EU Directive, implemented in 2018 - "The Directive requires public sector bodies to make their websites and mobile apps more accessible by making them Perceivable, Operable, Understandable and Robust."

Website development is a formidable wedlock between web users and search engines.

So how does SEO and website accessibility crossover:

Page Title Tags

For SEO purposes, page title tags allow search engines to understand the relevancy of your page with the initial part of the title having the most important keywords and phrases. The keywords should be made use of in the most natural and user-friendly manner. The title tag should match the potential visitor's intent. One of the most important on-page ranking factor.

Page title tags display in search engines results and the browser tab area of websites but are hidden on actual web pages.

Page titles should be unique per page as you don’t know what page your visitors will land on. They also should not be the same title as the H1 on the page.

Title tags should ideally between 50-60 characters with spacing otherwise it will truncate into dots in Google’s search engines. Bing (Yahoo!) is up to 65 Characters and W3C is up to 64 characters. Character limits are subject to change.

We searched for Huffington Post on Google; as you can see the title tags sets the tone and relevancy of a web page.


Huffington Post Google Search Page Title Example
Huffington Post Browser Tab Page Title Example

On the actual Huffington Post website, you can view the same title in the browser tab, where the arrow is pointing above.


When using assistive technology such as VoiceOver or JAWS (screen readers) for people who may have visual disabilities, the title tag will read aloud whatever is specified. This is why your website should have different titles for each page.

The title tags are one of the first elements to be read out by screen readers.

Please note, this will display if website owners integrate the title and meta tags on their website. If you don’t add specific text you want your web users to see then Google will generate content from your web page automatically in the title if they deem it suitable. Sometimes Google will also mix it up even if you did add a page title, depending on what the potential visitor searched for.

Also, when you share your website page on social media, the page title will display.

In the HTML code below, the title tag is shown for Huffington Post's Homepage. If we added this as text on here, the HTML would have picked up and hidden it as mentioned earlier, therefore, we had to display this as an image.

Huffington Post HTML Page Title Example

So it's good practice to make each page title relevant, appealing and click-worthy as possible as they are rich snippet ads of your website.


Huffington Post Social Media Page Title Example

Headings (H1, H2, H3...)

The use of headings and sub-headings with relevant keywords flowing seamlessly improves your SEO rankings.

Headings should be unique per page. The headings should match the users intent to indicate the relevancy of your page. Use up to 70 Characters. All character limits are subject to change.

Headings also break down chunks of content and enables the user to easily scan your pages, which is great for all types of users. Headings and subheadings structure's the content as the user goes through the page. It's better than having one page full of just text as this immediately puts the user off reading further.

Headings are particularly great for website accessibility too, as people with visual impairment who are using assistive technology can tab through the headings and select which content they wish to be read out. Screen readers can also identify the heading level.

H1 should be used once per page, subsequently, H2, H3, H4, and so on, they can be used more than once depending on the hierarchy of the content.


HTML Code Heading Example


Image Alt Tags / Alt Text

Alt tags or alt text describes what the image represents. It's short for alternative text.

This is great for people using assistive technology, as it will read what the image is about, if implemented. Alt tags are very useful for the visually impaired so describe images as specifically as possible that’s valuable to the user with relevant keywords.

Alt tags are first and foremost for accessibility hence its called alternative text then comes SEO.

For SEO purposes, if you explain the image as well as put relevant keywords as closely related to the image, search engines will count this part of their algorithm and the image will be indexed too.

Use up to 120 characters (including spacing) for alt text - this accommodates the JAWS screen reader alt text field. However this is not within the WCAG guidelines. Don't include "image of" or "picture of" in the alt text.

Alt tags should be integrated for all your images to describe their meaning unless it’s a decorative image, which is no use to the user so you can leave the text area null i.e. alt="". When using screen readers it will skip over a null alt text completely, this is what sighted users would do so don't just put keywords in there for SEO gains.

There seems to be debates about this over the years - this is what the WCAG 1.1.1 guidelines Level A state about Non-text Content:

"Decoration, Formatting, Invisible: If non-text content is pure decoration, is used only for visual formatting, or is not presented to users, then it is implemented in a way that it can be ignored by assistive technology."

This HTML code example includes the image file name, the dimension of the image and the alt tag at the end:

HTML Alt Tag Example

In WordPress, alt tags can be easily updated in the media library.

Also, when the Internet is not working properly sometimes the image won’t load but the alternative text will display instead. Same applies when the image is missing or the image file name is incorrectly implemented.

In some browsers, when you hover over an image, the alt tag will pop up.


Anchor Text / Internal Links

All links should be meaningful when it comes to SEO and web accessibility.

Link text should be less then 100 characters.

Links in your content, linking to other pages are known as anchor text.

Do not use ‘click here’ or ‘find out more’ to describe a link as it does not assist the disabled user where the link text alone will navigate to - it has to be meaningful on its own. Web visitors navigating via keyboard or screen readers can choose to read out the link text and they can also tab through a list of links in content. So if the links all said click here, the links would be completely useless to them.

Generic links like ‘find out more’ will not help search engines either to understand the importance of the anchor text. So when linking to another page, specify exactly where the link will go to with 2-3 relevant keywords. Internal linking can also improve link equity throughout other pages on your website.

Do not overuse anchor texts and overstuff with keywords, as it will be counted as spam. If the links are relevant, flows well and has high usability than its fine.

Apparently, only the first anchor text counts in Google if they both are going to the same page.

The anchor text link is underlined in the example shown here of steel garden sheds.


Descriptive Anchor Text Link Example


File Naming Convention

Ensure your web page URLs are SEO-friendly by using the most important and meaningful keywords that are relevant to the page itself.

Make use of hyphens to separate words in file names and not underscores because search engines do not recognise underscores as word separators. Don’t leave spaces in between words in any file names.

E.g. our marketing services page, we‘ve named it: www.iadcontrol.com/marketing-services

Here’s a bad practice page file name that will hinder Google ranking your pages. The URL alone does not tell web users or search engines what the page is about: page_seven_564

People using screen readers can also set their preferences to read image file names.


Sitemaps

For SEO purposes, it is crucial your website has a sitemap.xml as it ensures your website is seen to be as Google friendly as possible. The sitemap lists all the URLs on your website and allow search engines to crawl your website more intelligently, it also includes additional information such as your websites latest updates and frequency of changes.

If you have quite a large website, then it is always handy to have a dedicated sitemap page to list all the content links of your website in a hierarchical manner. This sitemap makes it easy for visitors to access information effectively and makes every page accessible on one page.

People using assistive technology are likely to use the sitemap page as the main source for navigating through websites quickly to find what they are searching for.


Information Architecture (IA)

Without good user experience, usability and information architecture, no amount of optimisation will help your website’s rankings or aid people with disabilities.

Organising information and implementing content in a structure that's comprehensible, and searchable is critical to SEO.

Your main focus should be on the users and providing them with valuable content and your secondary focus should be for search engines.

Breadcrumb trail is another way to show the users where they are located in relation to your website, particularly if your website has deep routed pages. This is sufficient to aid the user in navigating your website and improves the User Experience (UX).

Breadcrumb trails are usually displayed just below the main menu:
iAdControl BlogThe Importance of Information Architecture

On most websites, the current menu tab you are on is highlighted - this is a quick visual aid to indicate the user's main location.

Information Architecture Planning

Make your website built for purpose with high quality content. Structure your website effectively and position information where the user is most likely to find it.


As stated earlier, when the titles, headings, and all content is labeled correctly everything becomes meaningful.


Website Code Quality

Having the latest, clean and compliant HTML 5 code means that your website can be read by the widest possible range of browsers, devices and are less likely to break your website page. This helps all types users and won’t disrupt screen readers as they go through the pages.

On WordPress or pre-set template websites, it is rather challenging to keep the code complaint within the semantic HTML formatting so try to keep it clean where you can for each page. Do not use any styling elements hard-coded within the HTML - have this in the actual CSS file.

No duplicate content should be used or should have canonical links defined. Use relevant and meaningful keywords in content, have paragraph spaces, no long sentences, etc.

Complying with W3C Markup Validator is said to be one of the many ranking factors.

The above updates will gradually help your website to climb up the search listings and simultaneously improves web accessibility.


That's all for now...


Web Accessibility Resources

Web Accessibility Matters



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