The information typically described on a state's GED website includes:
- Eligibility requirements for age and residency
- Preparation courses and locations
- Practice test requirements, if any
- Official GED testing locations and costs
- Info on obtaining GED transcripts
- Info on obtaining a high school equivalency certificate or diploma, if offered
There are some free preparation courses and practice tests that are not tied to a particular state. I've described these on the LearningReviews.com GED listing.
And keep in mind...
You cannot take GED tests online and get a high school diploma. You can only take the GED tests at official GED testing facilities. Valid high school diplomas are only issued by your state.