The Difference Between Crawling and Indexing

I talk a lot about crawling and indexing, but I think it’s worthwhile to back up and describe some of what’s going on.

The terms crawling and indexing (and indexing’s cousin, caching) are frequently used together, but you should not consider them synonyms.
Exact definitions probably differ from person to person, but following is how I explain the processes:

Crawling is the process of an engine requesting — and successfully downloading — a unique URL. Obstacles to crawling include no links to a URL, server downtime, robots exclusion, or using links (such as some JavaScript links) from which bots cannot find a valid URL.

Indexing is the result of successful crawling. I consider a URL to be indexed (by Google) when an info: or cache: query produces a result, signifying the URL’s presence in the Google index. Obstacles to indexing can include duplication (the engine might decide to index only one version of content for which it finds many nearly identical URLs), unreliable server delivery (the engine may decide to not index a page that it can access during only one-third of its attempts), and so on.


What’s the difference between crawling and indexing, in terms of time?


For Example :

I recently watched a newly introduced URL to see when it would be indexed. I monitored the text cache query of the URL every four hours starting when the URL went live on July 2. (This URL was one of a number of URLs linked to on a new site map.)
On July 17, the text cache showed results and finally stopped saying “Your search – cache:[URL] – did not match any documents.” But what was interesting is that the cached file showed the results of the URL “as retrieved on 8 Jul 08.” So make special note that the URL was crawled and cached over a week before it appeared in the index.
A better, more comprehensive test would be to watch server logs and see how many times the file was requested, and with what frequency, between the original request date and date at which the cache query showed results. Additional testing would try to detect ways to shorten that time by increasing the number (and prominence) of incoming links and so on.

Email Marketing – What is it? Why do it? And How?

Email marketing has become an essential tool for business ever since the introduction of the Internet to the world, however some campaigns that make it through to our inboxes are absolute rubbish that we don’t take any notice of. This article seeks to explain what email marketing really is, why companies should use it and how they should go about doing so.

Email marketing is a form of direct marketing that uses electronic mail as a means of communicating commercial or fundraising messages to an audience. In its broadest sense, every email sent to a potential or current customer could be considered email marketing. 

However, the term is usually used to refer to:

• Sending emails with the purpose of enhancing the relationship of a merchant with its current or    previous customers and to encourage customer loyalty and repeat business.

• Sending emails with the purpose of acquiring new customers or convincing current customers to  purchase something immediately.

• Adding advertisements to emails sent by other companies to their customers.

      Email marketing has several key advantages over traditional mail marketing, including the following:

• An exact return on investment can be tracked and has proven to be high when done properly. Email     marketing is often reported as second only to search marketing as the most effective online marketing     tactic.

• Advertisers can reach substantial numbers of email subscribers who have opted in to receive email         communications on subjects of interest to them.

• Over half of all Internet users check or send email on a typical day.

• Email allows marketers to reach out to consumers with personalized, relevant, dynamic messages.

• Transactional emails allow businesses to respond automatically to important consumer events like           purchases or shop- cart abandonment.

      The disadvantages of email marketing surround the rejection/spam rate of the emails by the consumers’ email program, negatively affecting the delivery rate of the emails. This has somewhat been eliminated with the idea of “Opt-in” emailing, where the consumer consents to receiving the emails and therefore eliminates the idea of receiving unsolicitated emails – Ideally maintaining emails that are relevant and appropriate to each individual recipient.

     So the questions are why and how should one go about email marketing? Well here are a few thoughts on the matter:

    

Why?

• Cost – Email marketing is CHEAP, there are no two ways about it. Whether you do it yourself, or through an email  marketing agency, marketing to hundreds of consumers via email is going to cost you tiddlywinks compared to other  channels of advertising.

• Success - Emails can be targeting specifically to the ideal consumer. With this concept in mind, along with email cost-effectiveness, it’s no wonder that email marketing’s ROI often blows other direct marketing strategies out of  the water – The trick is that you have to get it right!

• Measureability and Flexibility – With the analytics available today it’s easy to track responses to your emails exactly, in order to work out what parts of your campaign are working and what parts aren’t. With this knowledge, you can then react instantly to modify your campaign strategy if need be.

How?

      Dave Chaffey from Marketing Insights offers an experienced view into the success factors of email marketing, using the mnemonic “CRITICAL“:

• Creative – This refers to the overall design of the email (layout/images/colour). Specifically, it is a      good idea to ask each customer whether they would like the emails in text or HTML as there is often a   great preference for one over the other.

• Relevance – Targeting, targeting, and more targeting. Make your emails relevent and personalised to  each recipient if you want that response rate to rise.

• Incentive - Recipients look at emails and think “WIIFM?”, i.e. “What’s in it for me??”. There’s no       such thing as a  free lunch right? Well… Offer the recipient a “free lunch” for participating and        they will be more likely to respond.

• Timing – Don’t send out an email that recipients will receive overnight, let it pop up in their inbox during their working day. This also expands to selecting certain days, months and even years. Remember – You can test and measure  what timing works best for which email.

• Integration – Companies can not just rely on one method of marketing, nor can they rely on several methods of differentiated marketing. Instead, best marketing practices utilise integrated marketing communication (IMC) where all aspects of their promotion work together to create a whole. Email marketing must be including here, therefore your emails must carry the same image and message as your entire operations. Even the timing of the campaign must work in with other aspects of your marketing mix.

• Copy – When considering the copywriting for your email you must consider all aspects of the language, from subject line through to your mail signature. With emails, not all links should be saved for the last sentence, pop them in early to grab that impulsive customer!

• Attributes – Here Dave talks about the email header, with attributes including the subject line, from address, to address, date/time of receipt and format. Once again, testing your campaigns can rule out the attributes that customers consider spam and highlighting the attributes that will work best for your business.

• Landing Page – Want those emails to turn into sales conversions? Don’t just hyperlink your customers to your home page; show them exactly where you want them to go and make it quick and easy to complete any forms!

      So yes… Email marketing is a vital component in many industries, especially for creating those important customer-firm relationships. Learn to use it well and it will definitely bump up your company’s success.

Just try not to send out another email that goes straight through to my spam folder. And, if the email does manage to make it through to my inbox – Make it worthwhile to read!