Google Tips: How To Create Accessible, Crawlable Websites Or Blogs

Everyone wish his website to be listed on top in Google search engine but due to simple mistakes made with websites, it makes website contents unaccessible and not reachable.
According to Google webmaster team, if we follow some useful tips, we can make the website more accessible for Google crawler.

Below are these tips from Google-

Ensure that all critical content is reachable

avoid hyperlinks of the form:
<a href="#" onclick="javascript:void(...)">Product Catalog</a>

In preference of simpler links, such as:
<a href="http://www.example.com/product-catalog.html">Product Catalog</a>

Ensure that content is readable

Avoid large usage of executable javascript, flash animations.
All important contents should be present within the text of HTML.

Ensure that content is available in reading order

Avoid using deeply-nested HTML tables as it makes difficult to link together related pieces of text in a logical manner.

Supplement all visual content--don't be afraid of redundancy!

Ensure that content communicated via images is available when those images are missing i.e. usage of alt attributes

Add relevant summaries and captions to tables.

Accompany visual animations such as data displays with a detailed textual summary.

You can follow the tips from Google in order to make you website or blog more accessible and reachable by Google crawlers. For detail information on these tips, follow the link in reference.

Reference:-
Official Google Webmaster Central Blog: Webmaster tips for creating accessible, crawlable sites

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