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Search Queries & Quality Score – The Truth (Amended)

I was wrong. A couple of times.

The subject was ‘how quality score works’. And in both cases I wrote long detailed posts on this very blog, and I have come to learn that these particular posts were not accurate.

My revised world view was provided courtesy of our friends at Google. They have been kind enough to help me to better understand quality score – the gory details and the dark recesses – over the past six months or so, and I’m going to share some of what I’ve learned.

Actually, I’m going to share all of what I’ve learned, but only some of it will be here on the blog. For the full story, you’ll have to get yourself a copy of my upcoming book ‘Quality Score in High Resolution‘ which will be out in June.

If you’re a ClickEquations client, you’ll be getting a courtesy copy.

Otherwise you can pre-order your own copy for a limited time at a 46% discount off the not-so-tiny retail price.

Now on to my most recent mistake.
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The Actual Truth About Quality Score and Search Queries

A few months ago I wrote a post called ‘Match Types & Quality Score – The Truth At Last‘. It turns out the title probably should have been ‘Match Types & Quality Score – More Confusion and Inaccuracy’. I thought I had it right, but my source was reading between the lines in the detailed study of the official word and various conversations over the past few years.

Now this is embarrasing for many reasons. Chief among them is the fact that I’m not a fan of all the how freely incorrect information and poor advice flows through blogs and tweets and even from the conference podium in this market. I generally work hard to know my song well before I start singing, as some old man once said when he was younger than he’s now. But I blew it on this one (and at least one other which I’ll admit next Monday.)

I am glad that I get to correct the error. I wrote this book to clear up the many mistaken assumptions and recommendations I regularly see passed off as quality score information and ‘tips’. The fact that the research process exposed some of my own errors is a fair price to pay to set the overall record straight.

When I sat down with Google to ask for their help in research and tech-editing the book, I told them that I really didn’t want to do all this work and get it wrong. But I knew there were many specific points that I couldn’t be sure of, because the published material wasn’t detailed enough. I was very pleased and excited when they agreed to help. Over time they answered every question I asked, and only rarely with a ‘no comment’.  This includes responding to the ’11 Hard Questions About Qualty Score‘ I posted a few months ago.

The Details of My Mistake

The crux of the mistake I made concerning the role of search queries was taking the fact that google says ‘quality score is calculated based on keyword performance only when a keyword perfectly matches a search query’ too literally.

One of the things I learned while writing the book and trying to follow all the threads presented in the AdWords help files and official information, is that whenever someone (including Google) says ‘quality score’ you’d better quickly ask ‘which one’ (the book lists eight of them).

In this case I fell down the very easiest hole – the statement above refers to what I call ‘visible quality score’ the number we all see next to our keywords in the AdWords interface. Visible quality score differs from the versions of quality score used to calculate important things like ad rank and CPC in a number of ways.

The statement above is entirely true in terms of visible quality score – the numbers you see are only impacted by queries that equal the keywords – but that does not mean, as I claimed in the earlier blog post, that the quality score from queries identical to a keywords is used to make decisions or calculations about queries that are not identical to the keyword.

To be fair and complete (and slightly mysterious) there is a second cause of my error. This one is based on what I think is an intentional misdirection Google uses when talking broadly about quality score. Google is expert at shaping our perceptions and expectations, and one of the ways they do this is by creating impressions that aren’t literaly true but serve some other purpose – sometimes even for our own good.

Suffice it to say that when that blog post was written I still held some nieve (although almost universally held) beliefs and I am no longer so afflicted.

The third element of my mistake, this is more of a proof or an error-of-oversight, is the fact that the core description of the calculation of qualty score includes ‘the relevance of the keyword and the matched ad to the search query’. So Google had in fact already definitively confirmed that search query was considered. I knew that but overlooked it’s implication when writing that post.

How Search Queries Influence Quality Score

When quality score is being calculated, after a query has been made and before the advertisers and pricing has been decided, AdWords looks at a wide range of factors to assign your keyword a quality score. One of those factors is relationship between the current search query and the current keyword. That relationship can dramaticaly impact the resulting quality score, which means that different search queries matched to one keyword may see significantly different rankings and significantly different CPCs even if they achieve the same ranking.

Search queries are a part of what determines quality score, just not the quality score you see in your account every day.

Doubling Down and Getting It Half Right

I compounded my error by going on to say that the solution to the problem of search queries not impacting quality score, was to create new keywords in order to give each query what amounted to ‘access’ to its own quality score.

The point I was making may have been wrong, but the idea still has merit. By adding a new keyword from what was once just a search query, you do gain the ability to see the quality score for that query – because now it will be identical to the keyword.

Suppose you bid on the broad match keyword ‘dog food’ and it was frequently getting matched to the search queries ‘organic dog food’ and ‘cheap dog food’ among many others. Now further suppose that when AdWords looked at the ‘relationship between these queries and the keyword’ what they saw was, relative to the query ‘dog food’ itself, very positive for the query ‘organic dog food’ and fairly negative for the query ‘cheap dog food’.

In that case, the quality score visible in the account would reflect the performance of the ‘dog food’ search queries. But the queries ‘organic dog food’ and ‘cheap dog food’ would get real-time qualty score calculations, and the resulting impression counts, positions, and costs, based on their own merits. But you would never be able to see those differences.

If on the other hand, you added ‘organic dog food’ and ‘cheap dog food’ as their own keywords (probably in phrase or exact match, but that really doesn’t matter) then the visible quality scores that would appear for these keywords would (ultimately perhaps not immediately) reflect the full detail of their performance and value as AdWords saw it.

By splitting them out you’d be able to make their ‘invisible’ quality scores visible.

A Lot of Shadows In A Short Hallway

I hope this post clarifies the facts about search queries and quality score. I regret and apologize for the original mistake.

This episode highlights a lot about the complexity of quality score – both in terms of how it works and how we as paid search managers get information about it. The complexity of both of thse is one of the main reasons I took up the task of figuring this stuff out and writing this book. This post has turned out long enough, so I’ll say more about that in the near future.

In the meantime, if you’d like to support this project, please consider taking advantage of the pre-sale pricing and offers.

  • http://twitter.com/bgtheory bgTheory

    Craig,nnJust to make this clear…nnGoogle has been doing a ‘real time QS’ that takes into account search query, DKI, etc for a while (http://adwords.blogspot.com/2008/08/quality-score-improvements.html) which seems to be the overall point of this post.nnNow, here’s my question: Google has a different QS for your search queries that are triggered off the keyword (your dog food example above). Does the visible quality score take into account the QS of those other queries when displaying the visible QS?nnFor instance, if:nDog food was 7 QSnOrganic dog food was 8 QSnCheap dog food was 3 QSnnIf you only had the keyword ‘dog food’ and not the other variations, would the displayed QS take into account organic and cheap dog food or only show QS for the precise term dog food?nn

  • Chad Summerhill

    dfad

  • http://clickequations.com Craig Danuloff

    Hey Brad – No only the CTR history from the ‘Dog Food’ queries (across all match type versions of the kewyord and any geo-targeted versions) are considered in the calculation of the visible quality score. The fact that the negative or positive influence of the other queries is not in the visible quality score, but is in the ones that drive your results, is the core of what I now understand to be true.

  • Chad Summerhill

    So does that meant that we should look at the difference in CTR between the keyword and the other search queries as a proxy for possible quality scores. If you have search queries with Lower CTR, then most likely their actual QS is below the visible. Same thing for search queries with Higher CTR, they may have an actual QS above the visible.

  • http://clickequations.com Craig Danuloff

    Ya, but you can’t tell the CTR for queries because you don’t know the impression count by query – all you have for queries is clicks but there is no way to tell ‘out of a possible of X’. Only when you turn the query into a keyword do you get to know – right?

  • Jc Zhang

    Thanks for the writeup. I got two things out of this:n1) Quality score for keywords that are phrase or broad MT are biased (more so for broad), because exact matched queries are weighted 100%.n2) Having a comprehensive KW portfolio based on search-query data decreases this bias and gives you a more reliable QS metric to work with.

  • http://clickequations.com Craig Danuloff

    Yes, good summary.

  • http://clickequations.com Craig Danuloff

    I’ve wrestled a lot with the ‘morality’ and ‘business issues’ of what they disclose or don’t. And I tackle the issue in the book head-on. I don’t think that it’s primarily a malicious effort (although they certainly make decisions that benefit themselves) but rather the fact that most of their users only want the simple explanation – a flood of details in the system and long complicated descriptions in the help file, would only confuse the vast majority. In fact their willingness to help on this project was prefaced by their saying they were happy to have a vehicle to put the ‘hard core’ info out to those who would want it. Of course they could have found a way beside this, but given that they haven’t roadblocked very much info with me does suggest it isn’t that info is hiding, it’s that it hasn’t had a forum. I do agree they owe advertisers better, but am glad this project can at least partially serve that function. nnThanks for the comment.

  • Chad Summerhill

    You get impression counts by search term in the AdWords Search Term Report, and more recently they’ve been reporting more zero click search terms:nnhttp://www.adwordshelpexperts.com/2011/04/adwords-search-query-report-becomes-mor-transparent/nnUnless I’m missing something (which is possible) you can determine a CTR for a search query. Promoting a search query to a keyword just makes the data more visible in the Keyword Report.

  • http://clickequations.com Craig Danuloff

    Cool. Need to spend more time back in AdWords and not these fancy 3rd party platforms…nnGiven this, the benefit of splitting them out would be getting to see qualtity score – nor real way to infer that from CTR (although you would get a good idea by comparing to the visible of the current keyword, but that’s a lot of work on an ongoing basis.) Thanks for the new info.

  • Anonymous

    Great post Craig. I had always assumed there were other relevancy factors and account factors at play when the search query didn’t match the keyword. Your conclusion, though, that you should add the search query as a KW is a smart one. The reality is that if your KW has a low exact match impression share (I wish Google would provide this at the KW level), it’s likely that your ad text isn’t as relevant as it should be and therefore your CTR is lower than it should be. Adding search queries as keywords and refining your ad text to be relevant will help CTR and your QS.nnA couple questions for you:n1) How is visible quality score calculated for KWs that have never had an exact match to the search query? I’m assuming account QS is at play. My guess is that Google applies a QS leveraging their historical knowledge of the performance of that KW on other accounts normalized by some factor that accounts for the difference between your account QS and the account QS of other advertisers. In the case that no data exists, I’d guess that Google weighs your account QS heavily.n2) How is instant QS (QS at the time of search) actually calculated? How much of it depends on visible QS, how much depends on some relevancy factor, and how much depends on account QS?

  • http://clickequations.com Craig Danuloff

    Good questions. There is a great range of data that Google may or may not have available when they calculate quality score – the account may be old or new, the keyword may be old or new, the ad copy may be old or new, etc. So I think of it as a ‘best available data’ system that hopes for the most detailed but relies on less specific if needed. So a new keyword may have never had a click in your account, but they do know how other advertisers have done with it, how you do as an account, how the display URL has done, and maybe how the ad copy has done – these plus other clues let them set an initial score even for a ‘new’ keyword. nnWhat you call ‘instant qs’ is really first quality score for ad rank and then quality score for cpc. Neither has much to do visible quality score, they’re fresh real-time calculations which use the whole stack of available data in whatever mix they have to or deem appropriate. I think any % this and % that interpretations are just ideals or guidelines because per the above they have to factor the quality of what they have in any given situation.

  • http://www.vipsingles.com Brian

    The real issue that frustrates me about Google is not the lack of transparency on QS but the lack of transparency on things like pausing a keyword for things like “low search query volume.” I know that Google will treat search queries like “Plano Plumber” and “Plumber Plano Texas” quite differently but my “Plumber Plano Texas” kw has a good chance of the dreaded low search query volume trigger. Your book may expose new strategies, but Google may place additional restrictions (e.g. increasing the threshold for a kw to be live) in order to prevent taxing on the Adwords system that prevent me from executing those strategies. It would be nice if Google gave me the option of buying my way out of low search query volumes (e.g. I will pay a toll if I want to bid on low volume kws) so I could fully utilize my kw knowledge to maximize my overall spend. I hate executing a long-tail kw strategy (built around themes) where 40% of my kws are dead out of the water.

  • http://clickequations.com Craig Danuloff

    For better or worse, it’s their game, their ball, their field. They make the rules. It can be frustrating – and I think you’re right that transparency would go a long way. When i talk to them about these issues, they make sense and seem reasonable. But with no data or dialog it can be very frustrating.

  • http://www.calculatemarketing.com/blog Alan Mitchell

    Excellent article Craig. So in it’s simplest sense, are you saying Quality Score for a keyword is the weighted average of the Quality Scores of all search queries which match to that keyword? I guess that would make it extremely beneficial to create a highly granular ad group structure with loads of long-tail keywords.

  • http://clickequations.com Craig Danuloff

    Depends how you mean it, but I don’t think so. Visible quality score is based on the total data set for a keyword (even in mutiple match types and/or geo targeted versions). I’m not exactly sure how they different KW-Ad pairs that exist across the different ad groups play in, but let’s say it’s a weighted average of that.nnActual quality scores (such as the ones used for Ad Rank and CPC, start with that same base of data, but are then tuned/modified based on the real-time query, geo, and other factors. nnIs that helpful?

  • Kalin Dudley

    Craig,nnCame across this article on Twitter from Dave Szetela, great post and definitely a must for Adwords users to understand. The frustration that I have with how Google is calculating Quality Scores is that it creates massive accounts to manage. nnI have found that because search queries do play into the keyword quality score, you have to create ad groups specific to each unique query that makes sense (relevant to what you offer/enough impressions available for effort). You also have to be sure to have negatives in other ad groups to block the wrong ads from showing per search query. In the example you give, which is great, best practice would be to create an ORGANIC DOG FOOD ad group and a CHEAP DOG FOOD ad group so that your copy/landing pages could be more specific thus hopefully improving CTR and user-experience. But you then must be sure to add the terms CHEAP and ORGANIC as negatives to all other ad groups to prevent the wrong ads from showing. But this also adds another level of complexity, what if I am looking for CHEAP ORGANIC DOG FOOD? Again understanding these dilemmas can help you to use negative match-types to your advantage but you see the frustration with the effort involved…nnUltimately, I am all for QS as I believe it keeps a strong environment that prevents advertisers from raising costs on terms that they aren’t relevant for..nnGreat post!nnThanks again, nnKalin

  • Jeremy Brown

    That’s based on a questionable assumption: that Google is showing you in the auction for a large percentage of all the searches.nnIn fact, if you don’t have a search query delineated as a keyword, it’s likely that Google shows you in the auction less often. You may see a number like 2 clicks out of 100 impressions on the search query ‘cheap dog food’ using the keyword ‘dog food’. However, maybe ‘cheap dog food’ was searched 400 times and Google only showed your ad 25% of the time.nnYour CTR and QS assumptions may be right for those 100 times you were displayed, but those numbers may change when you break that query out into a keyword.

  • Jeremy Brown

    I’ll likely buy the book, but I wonder what percentage of what they told you was correct. You are reliant on them saying ‘this is the truth’ when they have been quite cloudy on many of these issues.

  • http://clickequations.com Craig Danuloff

    Jeremy – I see what you’re saying. Actually, since eligibility is driven by quality score, the % of the time that you’ll get the impression – from the broad match or the exact match – depends on how the keyword does against that query. It’s likely that the exact match will do better, but not assured. If ‘cheap dog food’ get a good enough CTR for the ‘dog food’ keyword, the quality score would likely earn eligibility quite frequently. nnThe key is that we don’t/can’t know. Broadly I agree with your point that any good query should be ‘promoted’ into it’s own keyword.

  • http://clickequations.com Craig Danuloff

    I’m very sure/comfortable that I’m getting honest answers. There is endless complexity, and they have declined to answer a few things, but there are a number of issues – i really should count them – where to my knowledge things were cloudy but they have agreed to bring some sunshine. I have no doubt the book is imperfect, but I also know it moves the ball quite a ways down field, and the Google help was/is a big part of that. Anxious to hear what you think when you get to read it. – Craig

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