Glossary of SEO Terminology

An SEO Glossary of common terms, acronyms and related web terminology.

We have provided this glossary of search engine optimisation terms to help both, newcomers, and the more experienced SEO'rs out there. It is by no means complete though we have tried to include as much as we can.

A | B | C | D | E | F | G | H | I | J | K | L | M
N | O | P | Q | R | S | T | U | V | W | X | Y | Z

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SEO Glossary J

JavaScript

JavaScript is a programming language used on WebPages to display dynamic effects. The JavaScript code is saved on the user's computer rather than the web server. JavaScript isn't good for SEO as search engine spiders have trouble reading JavaScript as it can't run the script.

JPEG

Joint Photographic Experts Group is an image file used to save images, a popular choice on the Internet to show photos. Some other formats are PNG and GIF.