关键词挖掘这项工作为何重要？为什么在开始SEO优化之前就需要挖掘关键词？

答案也很简单，如果不知道用户会在搜索框里输入什么搜索词，你就没办法去构造内容，从用户的角度出发思考他们需要什么样的信息。相比选择合适关键词的竞争对手，如果你优化错了关键词，要么是没人搜，要么是很难做上去，策略就会有很大问题。

关键词研究的目标

理解搜索需求和环境，制定更合适的SEO策略

许多年以前，我服务过一家创业企业-Crowd Crow，他们家从小农场主手里收购牛排直接送到你家，相比直接从超市购买的工业化生产的牛排，算得上是有自己的特色，

但当时在分析Crowd crow SEO的时候，我们发现了搜索竞品的人更多，像Omaha 牛排的搜索量甚至比“在线购买牛排”，“网上买肉眼牛排”，甚至比“买牛排”，“网上牛排”这些更宽泛的品牌词检索量还要高。

和之前的案例“足球队服”相比，关键词检索环境大不相同，在球衣行业，品牌词的检索量比通用词要少，因此针对球衣的做法是提供品牌知名度， 牛排的做法则是：我们如何去服务好已经存在的需求

上面就是我们讲的的搜索环境分析，可以提供给决策和市场或是你的客户，下面我看看针对这个牛排的客户我们能做些什么？

 整理出符合市场目标和能获得排名的关键词列表，

The next goal of keyword research, we want to create a list of terms and phrases that we can then use to match our marketing goals and achieve rankings. We want to make sure that the rankings that we promise, the keywords that we say we’re going to try and rank for actually have real demand and we can actually optimize for them and potentially rank for them. Or in the case where that’s not true, they’re too difficult or they’re too hard to rank for. Or organic results don’t really show up in those types of searches, and we should go after paid or maps or images or videos or some other type of search result.

给关键词再列个优先级，先去优化最重要的，ROI高的关键词

We also want to prioritize those keyword investments so we’re doing the most important work, the highest ROI work in our SEO universe first. There’s no point spending hours and months going after a bunch of keywords that if we had just chosen these other ones, we could have achieved much better results in a shorter period of time.

匹配关键词和网站现有内容，进行完善

无内容，新建，有内容排名查，优化排名。

理解搜索结果中的每一条信息

So an important part of understanding how search engines work — we’re going to start down here and then we’ll come back up — is to have this understanding that when you perform a query on a mobile device or a desktop device, Google shows you a vast variety of results. Ten or fifteen years ago this was not the case. We searched 15 years ago for “soccer jerseys,” what did we get? Ten blue links. I think, unfortunately, in the minds of many search marketers and many people who are unfamiliar with SEO, they still think of it that way. How do I rank number one? The answer is, well, there are a lot of things “number one” can mean today, and we need to be careful about what we’re optimizing for.

So if I search for “soccer jersey,” I get these shopping results from Macy’s and soccer.com and all these other places. Google sort has this sliding box of sponsored shopping results. Then they’ve got advertisements below that, notated with this tiny green ad box. Then below that, there are couple of organic results, what we would call classic SEO, 10 blue links-style organic results. There are two of those. Then there’s a box of maps results that show me local soccer stores in my region, which is a totally different kind of optimization, local SEO. So you need to make sure that you understand and that you can convey that understanding to everyone on your team that these different kinds of results mean different types of SEO.

Now I’ve done some work recently over the last few years with a company called Jumpshot. They collect clickstream data from millions of browsers around the world and millions of browsers here in the United States. So they are able to provide some broad overview numbers collectively across the billions of searches that are performed on Google every day in the United States.

Click-through rates differ between mobile and desktop

The click-through rates look something like this. For mobile devices, on average, paid results get 8.7% of all clicks, organic results get about 40%, a little under 40% of all clicks, and zero-click searches, where a searcher performs a query but doesn’t click anything, Google essentially either answers the results in there or the searcher is so unhappy with the potential results that they don’t bother taking anything, that is 62%. So the vast majority of searches on mobile are no-click searches.

On desktop, it’s a very different story. It’s sort of inverted. So paid is 5.6%. I think people are a little savvier about which result they should be clicking on desktop. Organic is 65%, so much, much higher than mobile. Zero-click searches is 34%, so considerably lower.

There are a lot more clicks happening on a desktop device. That being said, right now we think it’s around 60–40, meaning 60% of queries on Google, at least, happen on mobile and 40% happen on desktop, somewhere in those ranges. It might be a little higher or a little lower.

The search demand curve

Another important and critical thing to understand about the keyword research universe and how we do keyword research is that there’s a sort of search demand curve. So for any given universe of keywords, there is essentially a small number, maybe a few to a few dozen keywords that have millions or hundreds of thousands of searches every month. Something like “soccer” or “Seattle Sounders,” those have tens or hundreds of thousands, even millions of searches every month in the United States.

But people searching for “Sounders FC away jersey customizable,” there are very, very few searches per month, but there are millions, even billions of keywords like this.

The long-tail: millions of keyword terms and phrases, low number of monthly searches

Google的CEO说过，每天Google接收的搜索词中 ，有20%是从来没有人搜过的，这也可以佐证长尾词的流量，想想看每个月只搜了1次，5次或者10次的词，这些词的量难以估计

The chunky middle: thousands or tens of thousands of keywords with ~50–100 searches per month

If you want to get into this next layer, what we call the chunky middle in the SEO world, this is where there are thousands or tens of thousands of keywords potentially in your universe, but they only have between say 50 and a few hundred searches per month.

The fat head: a very few keywords with hundreds of thousands or millions of searches

Then this fat head has only a few keywords. There’s only one keyword like “soccer” or “soccer jersey,” which is actually probably more like the chunky middle, but it has hundreds of thousands or millions of searches. The fat head is higher competition and broader intent.

Searcher intent and keyword competition

What do I mean by broader intent? That means when someone performs a search for “soccer,” you don’t know what they’re looking for. The likelihood that they want a customizable soccer jersey right that moment is very, very small. They’re probably looking for something much broader, and it’s hard to know exactly their intent.

However, as you drift down into the chunky middle and into the long tail, where there are more keywords but fewer searches for each keyword, your competition gets much lower. There are fewer people trying to compete and rank for those, because they don’t know to optimize for them, and there’s more specific intent. “Customizable Sounders FC away jersey” is very clear. I know exactly what I want. I want to order a customizable jersey from the Seattle Sounders away, the particular colors that the away jersey has, and I want to be able to put my logo on there or my name on the back of it, what have you. So super specific intent.

Build a map of your own keyword universe

As a result, you need to figure out what the map of your universe looks like so that you can present that, and you need to be able to build a list that looks something like this. You should at the end of the keyword research process — we featured a screenshot from Moz’s Keyword Explorer, which is a tool that I really like to use and I find super helpful whenever I’m helping companies, even now that I have left Moz and been gone for a year, I still sort of use Keyword Explorer because the volume data is so good and it puts all the stuff together. However, there are two or three other tools that a lot of people like, one from Ahrefs, which I think also has the name Keyword Explorer, and one from SEMrush, which I like although some of the volume numbers, at least in the United States, are not as good as what I might hope for. There are a number of other tools that you could check out as well. A lot of people like Google Trends, which is totally free and interesting for some of that broad volume data.

So I might have terms like “soccer jersey,” “Sounders FC jersey”, and “custom soccer jersey Seattle Sounders.” Then I’ll have these columns:

• Volume, because I want to know how many people search for it;
• Difficulty, how hard will it be to rank. If it’s super difficult to rank and I have a brand-new website and I don’t have a lot of authority, well, maybe I should target some of these other ones first that are lower difficulty.
• Organic Click-through Rate, just like we talked about back here, there are different levels of click-through rate, and the tools, at least Moz’s Keyword Explorer tool uses Jumpshot data on a per keyword basis to estimate what percent of people are going to click the organic results. Should you optimize for it? Well, if the click-through rate is only 60%, pretend that instead of 100 searches, this only has 60 or 60 available searches for your organic clicks. Ninety-five percent, though, great, awesome. All four of those monthly searches are available to you.
• Business Value, how useful is this to your business?
• Then set some type of priority to determine. So I might look at this list and say, “Hey, for my new soccer jersey website, this is the most important keyword. I want to go after “custom soccer jersey” for each team in the U.S., and then I’ll go after team jersey, and then I’ll go after “customizable away jerseys.” Then maybe I’ll go after “soccer jerseys,” because it’s just so competitive and so difficult to rank for. There’s a lot of volume, but the search intent is not as great. The business value to me is not as good, all those kinds of things.
• Last, but not least, I want to know the types of searches that appear — organic, paid. Do images show up? Does shopping show up? Does video show up? Do maps results show up? If those other types of search results, like we talked about here, show up in there, I can do SEO to appear in those places too. That could yield, in certain keyword universes, a strategy that is very image centric or very video centric, which means I’ve got to do a lot of work on YouTube, or very map centric, which means I’ve got to do a lot of local SEO, or other kinds like this. –You can also track how your SERPs are changing over time with STAT.

Once you build a keyword research list like this, you can begin the prioritization process and the true work of creating pages, mapping the pages you already have to the keywords that you’ve got, and optimizing in order to rank. We’ll talk about that in Part III next week. Take care.