Looks like Google have gotten a bit trigger happy lately – some GTrends SE users have been getting errors in the “Competition” column yesterday, me included. This is because Google doesn’t want any automated tools checking their search results.
I looked around for a solution and made a few minor changes to GTrends SE to make this blocking slightly less likely. I also modified it to show “Forbidden” instead of “Error” when you hit a temporary block, so you know what the problem is. Get the new version.
The solution to these errors is to use a proxy. You can find lists of free proxies on the sites below :
Proxy4Free – I myself am currently using a proxy on this site.
ProxyList “fast proxies” – this site has several lists of proxies; the link goes to the list of “fast” proxies that also shows the uptime. You can use this parameter to determine how reliable a proxy is.
Another possibility is to install the TOR package (freeware) and use the address 127.0.0.1:8118 as the proxy address. Then you can switch proxies just by clicking the appropriate system tray icon and selecting “New Identity” from the popup menu.
I’d also recommend to increase the Grace period value in the GTrends SE Settings menu.