As we reported just over two weeks ago, we were having some problems with slow report pages in the Pingdom control panel. (Lately we have been growing faster than we ever expected.)
This problem has been resolved and the report pages are now very fast and responsive. We have optimized our databases and our report generation code, and have also added more hardware to handle further growth.
While we were doing these optimizations, data older than April were temporarily unavailable. All this data has now been put back into the system and is accessible again.
Pingdom will always keep your historical data available to you for as long as you need it. No artificial 1-month or 3-month cutoff time. We will keep it forever so you can look back and see how your site performed months, even years, ago. This is just one of the things that make us unique in the uptime monitoring industry.
We would like to extend a big thank you to all you customers who emailed us with positive comments and praise even when our report pages were slow. We are glad to hear that our service is helping so many people find and resolve their website problems.
Finally we should point out that only the report pages were affected by this problem. Actual downtime detection and alerts work separately from the Pingdom control panel.