Since I'm among the 75 percent of people who pay those taxes through an escrow account, that information is sent to my lender, not to me. Had I felt the appraisal was too high, I could have printed out a board of revision form from the site, filled it out and mailed it to the auditor's office by March 30, the deadline to object to reappraisals. I also might have learned that my tax payments were delinquent. Often people checking the site find that, although they've been paying their taxes to their lender monthly, through some error it hasn't been credited. A few phone calls and some paperwork usually can straighten out the problem.
Lots more is available at the site.
Tony Frissara, administrator of the real-estate division, warns that sometimes that reduction isn't given when it should be, so that's another point to check. Another cool part of the site are the individual property maps, which can be found by doing a GIS Search. Here I found a map of my property, with lot lines, parcel number and an outline of the house, playhouse and shed. Don't think that checking your property is the only thing you can do on this site. Even more fun is checking out friends and neighbors.