Why these tools are free
Because they cost almost nothing to run. Everything happens in your browser or in a few milliseconds on the edge: no database, no queue, no account to manage. Charging $9 a month for a robots.txt file would mostly pay for the billing system.
What this site will never do
- Guarantee a position. Nobody can. Anyone who does is selling you rankings on keywords nobody types.
- Publish on your site for you. Automated publishing is where SEO tools quietly damage sites. You get the file, you decide.
- Keep what you type. Your review link is used to draw the code and then forgotten. It is never stored, never logged, never passed on.
- Put itself between you and Google. Plenty of QR services route the scan through their own address first. The day they shut down or start charging, every poster you printed stops working.