In layman terms, validating your web page for HTML errors simply implies ensuring the web page is free of any code errors using an online service or a program. Your webpage might not appear in search engine rankings as search engines might not be able to pick the text off the page, if your webpage is not validated for HTML code errors and broken codes. Also a broken or wrong code could possibly lead some browsers to crash or not display your webpage in the proper format. Similarly, online directories might not be able to include your page submissions if there are broken links on the webpage.
The primary function of an HTML validator is to ensure that the HTML code on your webpage is in compliance with W3C standards. W3C consortium is the body that issues the globally practiced HTML standards. Validators can perform a variety of validations, depending on how technologically advanced they are.
Compatibility is inversely proportional to the amount of HTML code errors on your webpage. Hence checking or validating your webpage for HTML coding is extremely important to ensure your web page has any or all of the below compatibilities
Your webpage will have a much higher likelihood of working across most of the browsers and platforms if it complies with current HTML standards. Also, most importantly, validating for error free HTML coding will ensure that your webpage will remain compliant with future browser versions as well. Conversely not checking for HTML errors increases the possibility that although your webpage might work perfectly well on your browser, it might appear very differently or not appear at all on other browsers.
A webpage with code errors mostly ranks lower, or does not appear at all, on search engine rankings, as search engines might not index the error containing parts of the webpage or even the entire webpage, resulting in no show. An error free HTML webpage ensures that the entire page can be scanned for keywords leading to higher rankings.
A product or the company is only as professional and good as the quality it exhibits. A poorly coded or written website gives a very poor impression of the quality approach followed by the company. It also leads to fewer visitors to the site as webpages with HTML code errors might open very differently in other browsers or cause browser crash causing visitors to label the site as unsafe and generate negative comments on the site in social media.
Validators, both free and paid, are available in plenty to ensure an error free HTML site fully compatible across browsers and platforms.
Free HTML validators can be accessed at
To summarize, it will always remain a best practice to validate your webpage for HTML errors to minimize possibility of potential problems with your webpage either in its current form or even if you choose to add more features and functionalities to it.