What is web accessibility and Resources for Freelance app developers

Web accessibility is the term that refers to those measures taken for a website can be accessed, browsed, read and seen by all kinds of people, have some kind of physical or mental disability or not, and regardless of the stratum social in which the navigator (either illiterate elderly people "desdigitalizada", etc.) is circumscribed.

 

That is, for web accessibility understand that a website can be accessed by all audiences and overcome all physical, technological, mental or sensory barrier that may have both the web and the individual who navigates it. In short, a web is universal for all.

 

Web Accessibility against disability

 

Disability means the lack or limitation that an individual has in some physical and / or mental faculty, that limitation precludes the normal course of business. According to the Freelance app developers in Mexico, disability is a generic concept in which the deficit or the limitations and restrictions of a person to perform an activity or participate in it included.

 

These limitations can be physical, sensory or cognitive and contextual (found in a marginal area where no learning resources, leisure, etc., that enable that person to learn to read, write, appreciate art ...).

 

Thus, the so-called Web accessibility encompasses many types of disabilities:

 

- Visually impaired: when the person is blind or has low vision, color blindness blindness ... For a website developed with the Braille system will devise; for people with low vision or blindness images in black and white will become (or not images will be included) or will be provided with alt codes that provide information about these colors (when the colors are important transmitters of information, such as when explaining the lines Metro map).

 

For App para el Desarrollo en México without visual acuity, there are programs that magnify the screen adapted to the special needs of the seer.

 

Sensory disabilities are not disabled but the following web accessibility:

 

- Temporary disability situations transient accidents: broken arm, momentary blindness ...

 

- Disability technological hardware: bad display monitor, mouse spoiled, damaged touch screen ...

 

- Disability technological software: browser that does not work properly, server problems, not responsive web browsing difficult page in certain mobile devices ...

In all these situations it is said that the problems experienced navigator web accessibility.

 

Accessibility against cultural deficiencies

 

According to Freelance web designer in Mexico, in the world there are a total of 600 million disabled. But as noted, disability has not always seen from the point of view of the deterioration or suppression of sensory faculties (blind, dumb, deaf, amputees ...) but also for cognitive impairment caused by old age and social and cultural context.

 

A person may have a "disability" to visit a website well because even being sighted not read (either illiterate) or because their senescence would have caused significant cognitive impairment and although you can access normally, costing understand the content, or simply cannot be accessed because your generation has not had digital education.

 

It may also be that it is in an area with no digital coverage for geographical reasons (mountainous areas) or for socioeconomic reasons (marginal areas without investments to wire and provide Internet areas with poor or nonexistent educational levels ...).

 

The first accessibility problems are technical, therefore, are not insurmountable (just adapt and develop appropriate technology by Diseño Web de la empresa en México).

 

The latter difficulties are not insurmountable, simply change policies (promoting investment in these areas, both at the level of wiring for Internet access as ad hoc educational programs).

 

In any case, an aid to illiterate people is the screen reader, a program which "reads" by using speech synthesis.

 

SEO web accessibility level

 

Another type of accessibility is signed in the language of SEO and it has to do with the program of the web: a web not only easily "positionable" in the search results users but easily accessible by engines search.

 

In fact, SEO-on-site analysis goes through four basic parameters set for web:

 

indexable

Accessible

Positionable in SEO terms

No penalized by Google

It is this accessibility where SEO have much to say for SEO México, if a user can not access a web page, that page does not exist. You have to make the web accessible to search engines, and for this we must perform these actions:

 

- Check that the files Robot.txt not block access to the web by www.ejemplo.com/robots.txt url address through Google Webmaster Tools.

 

- Put metatags able to communicate seekers if they can index the page or not.

 

- Fix HTTP status codes: when a url returns a permanent Error 404, 502, 302 or 301 temporary redirects ... neither users nor the search engines can access the page. The SEO should identify urls affected and repair. To do this, a valid tool is Screaming Frog.