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© 2001 Rank Write Roundtable.


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Singular and Plural Variations of Keyphrases
By Jill Whalen - June 15, 2001 (From the Rank Write Roundtable Newsletter)

~~~High Search Engine Rankings~~~

From: GFX Printing

Hi Jill and Heather,

In #050, Heather, when responding to Michael about "tshirts," although she may not realize it, brings up a new question (I checked the archives and didn't see it raised): is now having singular and plural variations important?

In the olden days when I first began submitting my own site to search engines (c. 1995), I believe it was Altavista that said not to worry about singular and plural usage because a search for "postcards" would show all results with the word "postcard" as well (that was true until at least 1998 I'm sure).

These days, it doesn't appear true at all ... doing a search on Google, for example, will result in wildly different listings for both the singular and plural version of the same phrase.

In the last couple of years, I guess I've been a little busy and haven't noticed such a drastic change, and was wondering if this relates to the majority of search engines and directories now.

If so, it certainly does make writing more challenging, e.g., postcard printing is grammatically correct, but postcards printing sounds silly :) (I know I could just replace a few instances to printed postcards to allow for plural variations ... but I guess it means a lot of work ahead of me, if indeed this is now true).

Thanks muchly,

Barb GFX Printing Services


~~~Jill's Response~~~

Hey Barb,

Thanks for bringing up an interesting subject that we haven't yet tackled. You'd think that after a year of Rank Write we'd be running out of new topics for discussion, but you guys keep just 'em coming! WTG!

I must say that it has *always* been my understanding that it was important to use both singular and plural variations of your keyphrases if you wanted to rank high for both forms. I felt that way back in '95, and continue to feel that way now. However, I haven't given it much thought lately, and figured now would be a good time to do a little bit of research. (Thanks a lot, Barb for making me do some actual *work* for this newsletter...I'll bill ya later!)

I remember hearing or reading about some engines' use of "stemming" which I knew had to do with plurals and singulars, etc., so I did a bit of research on that first. I found a quickie explanation of stemming at Search Engine Watch. Danny Sullivan says, "Stemming is the ability for a search engine to search for variations of a word based on its stem. For example, entering 'swim' might also find 'swims' and maybe 'swimming,' depending on the search engine." Apparently Lycos and NorthernLight use this stemming feature (or at least they did when Danny's article was written at the end of last year). Many other engines have a stemming feature you can turn on by using their Advanced search.

Thus said, just because an engine *can* find the plural when a singular form (or vice versa) is typed in the search box, it doesn't mean that it *will* find it, or will find it first. If all else is equal, chances are that the engine will first find the matches that correspond with the exact search term, and then find the other forms. At least that's my assumption. So before making the proverbial ass out of myself by ASSuming stuff, I spent my morning doing some detective work.

Here's what I did, along with the results of my highly UNscientific study:

Using our "tshirt" example from last week, I went to each major search engine and did a search for "tshirt" in one browser window, and "tshirts" in another browser window. In nearly every engine, different results came up for the singular and the plural searches, plus I found some other interesting and unexpected surprises along the way! Because of these surprises, I also did a search for "women's tshirts" and "women's tshirt" so I could compare the results of a keyphrase with that of a keyword.

In AltaVista, the results were basically as I expected them to be. The search for "tshirt" brought up sites that used the singular form of the word in its Title tag, and the search for "tshirts" brought up sites with the plural form in its Title tag. This was fairly consistent throughout the first two pages of results. (I didn't go much further than that on most engines.) Along with sites that had these words in the Title tag, there were a few strange and apparently irrelevant sites also mixed in with the results. There didn't seem to be much variance with the two-word phrase of "women's tshirt(s)" either.

Google showed the same type of phenomenon, only with much more relevant results (sorry AltaVista but you've got some major catching up to do!). Again, the Title tag seemed to have a strong relevance with what showed up in the listings. As with AltaVista, there didn't seem to be much variance with the two-word phrase of "women's tshirt(s)" either.

At HotBot, I saw a slightly different story. The first page of results was very similar for either "tshirt" or "tshirts" (not exact, but similar). But after the first page, the results began differing. They appeared to place a lot of emphasis on the Meta description tag and that corresponded with whether or not I searched in singular or plural terms. (Please note that I did not actually click on most of the sites and did not look at the text on the page, but based my findings on the information that showed up in the list of results.) So why was the first page of results at HotBot inconsistent with the next page of results? I believe this is due to the fact that Inktomi and/or HotBot have some human editors that actually handpick certain sites for some competitive search terms. I remember having read or heard somewhere that they do this, and it does appear to be true. Which also might explain why it's so difficult to get a top-ten listing for some keywords on HotBot these days. Now, using the two-word phrase, I didn't get a sense that the first page of results was "fixed." They were the same crappy results that you tend to get most of the time at this engine these days. Apparently HotBot hasn't heard of the Title tag and its relevancy to page content!

Lycos had completely different results for the singular and the plural forms of "tshirt." One thing that was consistent was that many of their results appeared to be totally irrelevant to my search terms. Shame on Lycos. The results for the plural form appeared to be slightly more relevant than those for the singular form. But many of them still sucked, for the most part! I also did a quick check of the Fast database at AllTheWeb and got the exact same results that I got at Lycos. So perhaps we can simply blame Fast for the poor show of relevancy. The search for the two-word phrases gave slightly better results. Interestingly enough, Lycos' "popular" results showed the same sites when using "women's tshirt" or "women's tshirts" but their "web" results showed different sites. With the one-word keyword, the popular results showed differing results. Not sure what to make of this, but it's interesting, nonetheless!

Next was Excite's turn. Beats me if anyone searches there anymore, but I figured I should check it out anyway. Interestingly enough, the results for both the plural and the singular forms of "tshirt" were *exactly* the same! That was a bit of a surprise to me. It appeared that they were probably searching for the plural form, for the most part. Even more surprising was that when using the two-word phrase, the results were suddenly *different* for the plural and singular searches. But wait, it gets even better. The searches for both forms of "women's tshirt(s)" at Excite brought up mostly porn-type sites (wet tshirt kind of sites)! This did not happen in any other engine. So if you're looking for porn, Excite may be your best bet. (Heather...take note!)

I also checked out NorthernLight just for the heck of it. Man, did I get some crazy results from them! The plural and the singular brought very different results, but all were stuffed with numerous seemingly irrelevant pages. I also noticed that Titles didn't seem to play all that much of a role in what would come up at NorthernLight. Strange. And even stranger was the fact that the two-word phrase brought up the same exact results whether it was plural or singular. So different results on the one-word keywords, but the same results on the keyword phrase. I'm sure there's a good explanation for this, but I can't quite fathom what it might be at the moment!

So what does all this craziness mean to poor Barb and her long forgotten question? Well, in my opinion, it's back to my original thought. As I've always advocated, if you want to be found under both forms of the word, use both the plural and the singular forms in the Title and the other tags (as well as in your copy). So yes, Barb, you may have your work cut out for you. But then again, perhaps not. It might be enough for you to simply add in the singular form to your Title tag if it's not currently there. You might give that a try for a few months and see how it goes.

My testing has also shown me that I've been right all along about shooting for keyphrases as opposed to keywords. The results for single keywords are much more irrelevant in most engines. There's no sense optimizing for one word if the engines can't categorize one-word keywords properly due to their vagueness. So keep on looking for the most appropriate keyPHRASES and you'll have a much better shot at high rankings AND targeted traffic!

And the last thing that my testing showed me (which I already knew), is that Google totally dominates as far as the relevancy of search results goes. I don't know what in the world has happened to AltaVista and Inktomi. I distinctly remember that at some point in their pasts, both of these "engines" had fairly relevant results (the rest of them were never very relevant!). Who knows what they've done to mess it up, but mess it up they have! This leaves me to wonder just how long most search engines will be around. As more and more people become Google converts, why would they ever go back to any other engine? From looking at my traffic logs, it already appears that searches (from real people) must be waaaaaayyyyyy down everywhere but at Google, Yahoo!, AOL and MSN. The bulk of my sites are getting most of their traffic from those four engines/directories, even when they have just as many high rankings on the other search engines. Goodbye other search engines - we knew you well...

Jill


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