How google search works ppt | backend & frontend part
How Google Search Engine Work ?
By MM Rahman Bappi
Independent SEO Consultant
There have 2 parts:
Crawling & Indexing (Via Google Webmaster Tools)
Algorithms (Users Search Behavior)
Fighting Spam (Flood Protection)
Title (Keywords play the key role)
URL (Keywords play the key role)
Meta Description (Keywords play the key role)
Crawling & Indexing:
Find information by crawling
Crawler is called “Googlebot.”
Crawlers look at webpages and follow links on those pages.
They go from link to link and bring data about those webpages back to Google’s servers.
The crawl process begins with a list of web addresses from past crawls
and sitemaps provided by website owners.
Crawlers pays special attention to new sites, changes to existing sites and dead links.
Organize information by indexing
Google index includes information about words and their locations.
When you search, at the most basic level, our algorithms look up your search terms in
the index to find the appropriate pages.
When you search for “dogs” you don’t want a page with the word “dogs” on it hundreds
You probably want pictures, videos or a list of breeds.
***Choice for website owners :- With the robots.txt file, site owners can choose not to be
crawled by Googlebot, or they can provide more specific instructions about how to
process pages on their sites.
Algorithms are the computer processes and formulas that take your questions and turn
them into answers.
Today Google’s algorithms rely on more than 200 unique signals or “clues” that make it
possible to guess what you might really be looking for.
These signals include things like the terms on websites, the freshness of content, your
region and PageRank.
Spam sites attempt to game their way to the top of search results through techniques like
repeating keywords over and over, buying links that pass PageRank or putting invisible text on
Google's algorithms can detect the vast majority of spam and demote it automatically.
Types of Spam:-
Cloaking and/or sneaky redirects
Hidden text and/or keyword stuffing
Spammy free hosts and dynamic DNS providers
Thin content with little or no added value
Unnatural links from a site
Unnatural links to a site
The title tag defines the title of your web page (or other web document), and is typically the
text that appears as a blue link on search engine results pages.
Use powerful high CTR keywords & break your SERP.
Take the time to carefully craft your title tags.
Several of the words in the title match the user’s query — this causes them to be bolded in
As you develop your tags, focus on the following important elements: character
length, word choice, and query match.
For increased organic clicks, try adjusting your page titles to be more relevant
and/or enticing to click. But do not remove your target keywords as it could impact
your organic ranking.
The landing page in the Walmart.com example below leverages
semantic markup for breadcrumb navigation. As a result, the display
URL provides valuable context and additional clickable navigation
When developing your URLs, pay attention to areas such as the folder
structure, word choice, query match, and breadcrumb navigation snippets.
Ensure your site follows a well-organized folder structure and site hierarchy
that leverages standard navigational tools such as breadcrumbs.
Be sure to mark up your pages with breadcrumb information for search
Meta descriptions help users understand what your content is about before they see it.
Meta descriptions as free advertising
It’s basically an opportunity to get your message out each time your listing is displayed
in the SERPs.
However, keep in mind that sometimes Google doesn’t display the meta description in a
SERP snippet, and instead uses other sources like publically available data and/or the
content of the page.