List of HTTP status codes

HyperText Transfer Protocol (HTTP) response status codes. This includes codes from IETF internet standards as well as unstandardised RFCs, other specifications and some additional commonly used codes. The first digit of the status code specifies one of five classes of response; the bare minimum for an HTTP client is that it recognises these five classes. Microsoft IIS may use additional decimal sub-codes to provide more specific information, but these are not listed here. The phrases used are the standard examples, but any human-readable alternative can be provided. Unless otherwise stated, the status code is part of the HTTP/1.1 standard.

The following is a list of HTTP status codes
100— Continue
101— Switching Protocols
200— OK
201— Created
202— Accepted
203— Non-Authoritative Information
204— No Content
205— Reset Content
206— Partial Content
300— Multiple Choices
301— Moved Permanently
302— Found
304— Not Modified
305— Use Proxy
307— Temporary Redirect
400— Bad Request
401— Unauthorized
402— Payment Required
403— Forbidden
404— Not Found
405— Method Not Allowed
406— Not Acceptable
407— Proxy Authentication Required
408— Request Timeout
409— Conflict
410— Gone
414— Request-URI Too Long
500— Internal Server Error
502— Bad Gateway
503— Service Unavailable
504— Gateway Timeout
505— HTTP Version Not Supported

Compare Paid and Organic Search Clicks

Everyone knows that search engine optimization and search engine marketing are two different animals. Some companies even have separate teams in charge of SEO and SEM. But if you do, and your two teams don't communicate, you could be leaving money on the table.

Matt Lawson explains this point well in an article for Search Engine Land. It's not too unusual that some keywords which perform well for organic search aren't tapped into for search ads – and likewise, some keywords that get great click-through rates with AdWords ads are nowhere to be seen in stats for organic search clicks. What's going on here?

It could be that one team is thinking in a slightly different direction. It's possible that some outside event unknown to either team affected searches. Any one of a number of variables could explain the difference in keyword performance. But the point is, this kind of disparity can indicate a missed opportunity. So how can you tell if this is happening with your search engine campaigns?

You'll need to do some heavy data crunching. If your company is really big enough for two separate teams, you're probably targeting millions of keywords. It would take forever to go through every single one and compare statistics. So Lawson recommends focusing on “the high-volume and top converting search queries in each channel.” Once you've limited your universe of data to the top performing search queries for the SEO team and the SEM team, you need to look at their performance against each other.

To evaluate the performance of these keywords for SEO and SEM, Lawson recommends a metric he calls “Paid Click Percentage.” To get this number for each of your keywords, “match raw query search terms across paid and organic search results, sum the total clicks, and calculate the paid clicks as a percentage of that total,” Lawson explains.

For example, let's take the search term “suede jacket.” Say you're running an AdWords campaign that uses that keyword, and you get 1,000 click-throughs in a month on your ads that utilize that keyword. You also get about 200 click-throughs in the same time frame from searchers who use that term and go to your site from the organic results rather than an ad. Add the two together, and you get 1,200 clicks – which is a little more than 83 percent.

Using the paid click percentage, you'll be able to tell at a glance which keywords are performing well in AdWords, but not attracting organic clicks – and vice versa. Ideally, if you have the data in a form that can be manipulated, you should start by filtering for a paid click percentage higher than a certain number. Lawson's example uses 75 percent as the cutoff.

Now here's an interesting point worth considering: most searchers still lean a little more toward organic results than ads. What does this mean? If you find that a particular keyword shows up with a high paid click percentage, that means it's probably nowhere in the organic search results. At the very least, it probably isn't on the first page; that's a near-certainty, in fact, if you're getting no organic clicks on the term. This tells your organic search team that there are terms for which they might consider adding content or otherwise optimizing, so that your website gets a stronger presence for those keywords in the organic results.

This can also work the other way, however. Lawson gave an example in which the term “acme marathon jacket” received hundreds of clicks from organic search, but none from paid search ads. What was going on here? Your first thought might be that the SEM team hadn't considered targeting that keyword with ads, but it's potentially more complicated than that. As Lawson notes, “the paid search campaign might be missing the keyword 'acme marathon jacket,' the keyword bid might be below the minimum first page bid, or the keyword may have a low quality score.” Whatever the case, the SEM team will need to figure out what's going on and correct the situation.

Now that you see how crunching the data and getting a meeting of minds between your SEO and SEM teams can help you spot holes in either campaign, it's time for the next steps. These involve action plans on the parts of both teams to plug those holes, and setting up the next meeting between the two teams. You can't hold this meeting as a one-time thing, any more than you can do SEO just once and forget about it. You need to get these two teams communicating and working together to get the most out of both your SEO and SEM campaigns. Good luck!

Google Takes Social Search Worldwide

Google announced that it has expanded the availability of its Social Search. Launched officially in October 2009 in just the United States, now searchers worldwide will be able to use it. The search giant noted that it will start making Social Search available in 19 languages, with more to come.

So what exactly is Social Search? It's one of Google's answers to Facebook – or at least a way to introduce social factors into search. It only works when you're actually signed in to your Google account. Basically, it's a way to make online content from your friends more visible to you in the search results.

The example Google likes to use to show how it works involves a searcher planning his next vacation with Google searches. He decides he wants to take a camping trip, and when he searches on camping trips, he finds a tweet partway down the page from a friend of his who just came back from Yosemite. He knows it's from his friend, because he can see a thumbnail image next to a sentence under the search listing that identifies who sent it.

So our vacation planner's next search is Yosemite. This time he's looking for campsites, and he finds a link that takes him to a friend's Flickr account, where she's posted images from the place she camped when she went to Yosemite last year. He decides that it looks like a great place to camp...and coincidentally remembers that he needs to get a new camera for the trip.

So he searches for a good camera for outdoor photography, and finds a Blogger blog result. He doesn't recognize the name at first, but hovering over the person's name reveals that he's been following her Twitter feed; she's a professional photographer. So he visits her blog to find out which camera she recommends.

Google notes that if you're not seeing very many Social Search results, you can expand and improve them in a number of ways. You can create a Google profile and connect your other public profiles from social websites, such as Twitter and Flickr, to your Google account and profile. You can also add links to your own public content, such as your Blogger blog. Subscribing to interesting content and following interesting people in Google Reader will also enrich your Social Search experience.

Social Search results are unique to the searcher, because every searcher has a slightly different constellation of contacts. These results may rank anywhere on the page; Google places them according to their relevance to your search. As Google explains in a blog entry, “Social search results are only visible to you and only appear when you choose to log in to your Google Account. If you’re signed in, Google makes a best guess about whose public content you may want to see in your results, including people from your Google chat buddy list, your Google Contacts, the people you're following in Google Reader and Buzz, and the networks you’ve linked from your Google profile or Google Account. For public networks like Twitter, Google finds your friends and sees who they’re publicly connected to as well.”

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