Hey everybody.. we have an interesting question today from Ed in London Ed asks how can you tell if your site is suffering from an algorithmic penalty, or you are simply being outgunned by better content? this is a really intriguing question so let's walk through some other different things. You didn't ask about manual but let's cover that just because that's the easy case. If you're hit by something that the direct action from the [manual or] web spam team that directly impacts the ranking of your site then go to webmaster tools and check out because it could very well be the case that .. you know.. hey we thought that there was some keyword stuffing or poking or whatever going on and that's a clear-cut case you'll get a notification..you'll get a message and then you can start to figure out..investigate..okay where can I start to improve things or what can I change to make things better. The other reason to check WebMaster tools is if there's some crawler error. We have seen sites that will launch a new development web site that was previously no-indexed and they will forget to take off the no-index tag or you know if there's 404 or you know we can't reach your site..those sorts of things..so look for crawl errors..all that sort of stuff..okay so now let's get to the meat of your question..he said if your site is suffering from an algorithmic penalty or if you're simply being outgunned by better content. It's tough because we don't think as much and really much at all about algorithmic penalties.. mmm.. really the web spam team writes all sorts of code but that goes into the holistic ranking that we do and so if you're affected by one algorithm, do you call it a penalty and if you're affected by another algorithm do not call the penalty ...that's a pretty tough call to make especially when the web spam team is working on more and more general quality changes not necessarily things specifically related to web spam and sometimes general quality people work on things that are related to web spam and so deciding which one to call which is kinda hard to do..so we typically just thinking about it as the holistic ranking. Now we rolled out something like 665 different changes to how we rank search results in 2012 so on any given day the odds that we're rolling out some algorithmic changes are pretty good ..in fact we may be rolling out a couple if you just look at the raw number of changes that were doing..however when we see an algorithmic change that we think will have a pretty big impact we do try to give people a heads up about that. So for example, the Penguin algorithm, which is targeted towards web spam or the Panda algorithm which is targeted towards quality content on the web whenever we have large-scale changes that will affect things then we tend to do an announcement that oh yeah this changed or you should look on this particular date and that can be a good indicator to know whether you're affected by one of those sort of..jolting algorithms that has a big impact. What you've seen is for example Panda has become more and more ah.. integrated into indexing and its had less of a jolting impact in fact we've gotten it so that it changes the index on a pretty regular basis and it's built in the index rather than rolling out on a certain day and so it's less useful to announce or talk about Panda launches at this point whereas Penguin is still.. you know..it's a switch that flips or its something that search [will really know] in a discrete-time and so we're a little more willing to talk about those and.. and let people know and have a heads up.. hey you might be affected by the Penguin algorithm..so in general if your site is not ranking where you want it to rank the bad news is it's a little hard and difficult to say whether you'd call it a penalty or not.. it's just part of ranking ..the good news is it is algorithmic and so if you modify your site if you change your site.. if you apply your best guess about what the other site is doing that you should be doing or that it is doing well then it's always possible for the algorithms to re-score your site or for..you know.. ask to re-crawl and reindex the site and for us to re-start ranking highly again..so its kinda tricky because we have a large amount of algorithms that all interact whether you call something a penalty or ranking change or you know any of those things can be really hard to draw a fine distinction between those different points but the nice thing is as you change your site you can always ..see that these algorithms can sort of rerun and reprocess the site and then the site can regain in rankings many of the times. I hope that helps a little bit as far as what to do .. and how to go forward with the site