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Seo Master present to you:

Robots.txt is a text (not html) file you put on your site to tell search robots which pages you would like them not to visit. Robots.txt is by no means mandatory for search engines but generally search engines obey what they are asked not to do.

 Robots.txt file tells search engines which directories to crawl and which not to. You can use it to block crawlers from looking at your image directory if you don't want your images showing up on google search. Be careful not to use this to try and block people from directories you want to keep secret. Anyone can view you robots.txt file. Make sure you password protect directories that need to be secured.


The location of robots.txt is very important. It must be in the main directory because otherwise user agents (search engines) will not be able to find it – they do not search the whole site for a file named robots.txt. Instead, they look first in the main directory (i.e. http://mydomain.com/robots.txt) and if they don't find it there, they simply assume that this site does not have a robots.txt file and therefore they index everything they find along the way. So, if you don't put robots.txt in the right place, do not be surprised that search engines index your whole site.


Creating the robots.txt file

Robots.txt should be put in the top-level directory of your web server.

Take the following robots.txt file for example:
1) Here's a basic "robots.txt":
User-agent: *
Disallow: /
With the above declared, all robots (indicated by "*") are instructed to not index any of your pages (indicated by "/"). Most likely not what you want, but you get the idea.

2) Lets get a little more discriminatory now. While every webmaster loves Google, you may not want Google's Image bot crawling your site's images and making them searchable online, if just to save bandwidth. The below declaration will do the trick:
User-agent: Googlebot-Image
Disallow: /

3) The following disallows all search engines and robots from crawling select directories and pages:
User-agent: *
Disallow: /cgi-bin/
Disallow: /privatedir/
Disallow: /tutorials/blank.htm

4) You can conditionally target multiple robots in "robots.txt." Take a look at the below:
User-agent: *
Disallow: /
User-agent: Googlebot
Disallow: /cgi-bin/
Disallow: /privatedir/
This is interesting- here we declare that crawlers in general should not crawl any parts of our site, EXCEPT for Google, which is allowed to crawl the entire site apart from /cgi-bin/ and /privatedir/. So the rules of specificity apply, not inheritance.

5) There is a way to use Disallow: to essentially turn it into "Allow all", and that is by not entering a value after the semicolon(:):
User-agent: *
Disallow: /
User-agent: ia_archiver
Disallow:
Here I'm saying all crawlers should be prohibited from crawling our site, except for Alexa, which is allowed.

6) Finally, some crawlers now support an additional field called "Allow:", most notably, Google. As its name implies, "Allow:" lets you explicitly dictate what files/folders can be crawled. However, this field is currently not part of the "robots.txt" protocol, so my recommendation is to use it only if absolutely needed, as it might confuse some less intelligent crawlers.

Per Google's FAQs for webmasters, the below is the preferred way to disallow all crawlers from your site EXCEPT Google:
User-agent: *
Disallow: /
User-agent: Googlebot
Allow: /
2013, By: Seo Master

seo how to create robots.txt file for website 2013

Seo Master present to you:


Google Tag Manager is also known as GTM, is a free container tag system from Google. A container tag helps you manage different kinds of tags that you may have on your site. This include web analytics tags, advertising conversion tags, general JavaScript, etc.

Users can add and update their own tags anytime. It’s not limited to Google-specific tags. It includes asynchronous tag loading, so “tags can fire faster without getting in each other’s way,” as Google puts it. It comes with tag templates for marketers to quickly add tags with Google’s interface, and supports custom tags. It also has error prevention tools like Preview Mode, a Debug Console, and Version History “to ensure new tags won’t break your site.”
2013, By: Seo Master

seo how to use google tag manager 2013

Seo Master present to you:

Calculating ROI is one of the basic tenets of PPC, and yet many advertisers don’t consider it or even understand it.

A lot of advertisers perform campaign optimizations based solely on conversion rate or cost per conversion, choosing the ads and keywords with the best metric and calling it a day.

For ecommerce goal analysis the method of calculation is similar. The biggest difference in the Ecommerce data is that it’s real and accurate compared to a lead form’s estimated goal value.
In Adwords, we can look at the money we spent to reach our goals in the same time frame. Compare that with the purchases made through CPC and we have a precise number we can confidently call ROI.

Lead Generation

Conversion rates (found in Google Analytics)
Conversions (found in Google Analytics)
ECommerce

ROI (found in Google Analytics and Adwords)
Revenue (found in Google Analytics)

I’ve always found that ROI is one of those terms that has been over-used and abused by so many people and as such, there is confusion on how best to calculate it. Personally, I like to use the following formula when we are discussing the ROI for any PPC campaign:

ROI = [Contribution] / [Cost]

So to calculate Contribution for a PPC campaign:
([Your average profit per sale] x [Estimated number of Conversions]) – [PPC Spend]

To demonstrate more fully, let’s take the following example:

Monthly PPC Spend: £1,500
Average Profit per Sale: £50
Number of Conversions (Sales) per Month: 75

and so the Contribution to Margin of the PPC campaign is:
(£50 x 75) – £1500 = £2,250
and your ROI would be:
£2,250 / £1500 = 150%

Phew! But there is an easier way. We have just created an ROI estimator / calculator spreadsheet that you can now download for free. We hope that it will be a useful tool for you when reviewing your PPC campaigns.
2013, By: Seo Master

seo Calculate the Return on Investment (ROI) for PPC Campaigns 2013

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