Digital Marketing

Top 50 SEO Interview Questions & Answers 2018 (Updated)

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Top 50 SEO Interview Questions & Answers (

Here are the Top 50 Search Engine Optimisation (SEO) Interview Questions and Answers that are frequently Asked in an interview for Freshers and Experienced Candidates.

1) What is SEO ?
Search engine optimization or SEO is a process of keep changing the position of a web page or website in a search engine results by using keywords or phrases.

2) How many types of SEO and introduce them ?
Two Types of SEO are:
1. On Page Optimization
2. Off Page Optimization

1. On Page Optimization
It refers to all measures that can be taken directly from the website in order to improve its position in search rankings.
2. Off Page Optimization
It refers to factors that affect your website or web page listing in natural search results in which they are not controlled.

23 Off-page SEO Techniques You Can Use Right Now

3) What do you mean by Backlink?
A hyperlink on another website which is pointing back to your own website.They directly affect the page rank of any website.

4) What are outbound Links?
The outbound links are our website links to other webpage or website.

5) What are inbound Links?
Inbound links are other website links to our webpage or website.

6) What are the SEO tools do you use?
The SEO tools that I use are Google analytic, keyword search, Alexa, open site explorer, Google Webmaster.

7) Tell me something about Googlebot?
To index a webpage Google uses the Googlebot software. Caching, Crawling and indexing of a webpage are done through Googlebot by collecting details from that webpage.

8) What is the main purpose of using keyword in SEO?
Keyword is a single word, and while a combination of those keywords makes phrases. These keywords or phrases are used by the search engines to populate the subjects over the internet.Search engine stores keywords in the database, and when search is done, it will come up with the best possible match.

9) What is Cross linking and what are the function of Cross linking?
1. Cross linking is used to refer the process of linking one site to another site and provide a
way to allow the accessing to it.
2. It provides the users with reference sites that consists the content related to the search.
3. It doesn’t need to be owned by the same person as it provides the methods that have
been built on the Internet.
4. It serves the purpose to display the page on the search engines using search engine
optimization techniques and methods.
5. The site ranking is calculated on the basis of the relevance of the sites and then it is
reflected on the search engine.
6. It uses SEO tools that provide reciprocal links and inbound links that can be used as our

10)Can you mention the functions of body content relevance?
Whenever there is a text that does not have images on the web page is referred as body content relevance or non-image text. It helps in good optimization of the sites and also to improve your ranking in the search engine.

11) What are Spiders, Robots and Crawlers and what are their functions?
Spiders, robot and crawler, they are all same and referred by different names. It is a software
program that follows, or “Crawls” different links throughout the internet, and then grabs the
content from the sites and adds to the search engine indexes.

12) What does it mean if nothing appears on doing search on the domain?
On doing search on your domain and if nothing appears then there are three possibilities.
1. May be the site is banned by search engines
2. May be no index by search engines
3. Some canonical issues

13)What is keyword stemming?
The process of finding out the root word from the search query is referred as keyword stemming.

14) Name some SEO blogs that you frequently read?
1. MOZ
2. Search Engine Land
3. Search Engine Journal
4. Jimboykins
5. SEOSmarty

15) What do you mean by Cloaking?
Cloaking is a deceptive way of optimizing search. In this technique a different content will be searched by the search engine than what is presented or searched by the users.

16) How many types of Meta Tags are there in SEO and what are their characters limits?
There are two types Meta tags in SEO.
1. Description Meta tag with 150 characters limits
2. Keyword Meta tag with 200 characters limits

17) How many characters limits in Title tag?
We can add 70 characters in title tag.

18) What is Google Sandbox?
Google sandbox is an imaginary area where new websites and their search rating are put on hold until they prove worthy for ranking. In other words, it checks the standard of the website.

19) What is white hat SEO ?
In search engine optimization (SEO) terminology, white hat SEO refers to the usage of optimization strategies,
techniques and tactics that focus on a human audience opposed to search engines and completely follows search engine rules and policies.

20) Tell me something about Black Hat SEO?
In order to get a high ranking in search engine result page, websites go for various methods and
techniques which are characterized by two categories. One method that is acceptable by search
engine guidelines is known as White Hat SEO, while the other method which is not acceptable
by search engine guidelines is known as Black Hat SEO.

21) Name few Black Hat SEO techniques?
1. Link Farming
2. Hidden text, etc.
3. Gateway or Doorway pages
4. Cloaking
5. Keyword Stuffing

22) Can you differentiate between ‘nofollow’ and ‘dofollow’ link?
Nofollow links are not passed by search engines bot and therefore cannot be cached or
indexed. Dofollow link is a kind of hyperlink and it passes through all search engines and it puts
an impact over page rank.

23) What is Google Page Rank ?
It is an analysis algorithm used by google to help determine the relative importance of a website.
Google want to return page rank results that are high quality relavant and trust worthy websites.

24) What is Search Engine Results Page ?
A search engine results page (SERP) is the list of results that a search engine returns in response to a specific
word or phrase.Each listing includes the linked Web page title, the linked page URL (Uniform Resource Locator),
a brief description of the page content and, in some cases, links to points of interest within the website.

25) What is the difference between PR (page rank) and SERP (Search engine result page)?
Page rank is calculated on the basis of quality inbound links from other website or webpages to
our webpage or a website.
SERP (Search Engine Result page) is the placement of the website or web-pages which is
returned by the search engine after a search query or attribute.

26) Why the Title Tag in website is valuable?
Title tags are very essential in SEO, as it tells about the contents on that web page. Through title tags only the search engine will tell the user, what is there in the page.

27) What is considered as more significant, creating content or building backlinks?
Both are necessary, creating quality content is equally important to building backlinks. Although,building backlinks are useful in building authority to a site and for ranking as well, quality content is the first element that is considered to be more responsible for ranking.

28) Can you mention the difference between SEO and SEM?
SEM (Search Engine Marketing), it is used for the promotion of website through Search Engine Result Page (SERP) , while to optimize the search result of your webpage or website SEO (Search Engine Optimization) is used.

29) What do you know about LSI?
LSI stands for Latent Semantic Indexing. This technique is established to obtain the data by relating the word to its closest counterparts or to its similar context. For example, if you are searching something with a keyword “CAR” it will show all the related things like classic cars,
car auctions, Bentley car, car race etc.

30) How will you cross-check whether your SEO campaign is working or not?
To check whether your SEO campaign is working or not, the first approach is to check the websites statistics, which tells you about the origin of traffic. The other way of checking is to make a search based on the relevant keywords and key phrases and look for the search result.
The number of search result will tell you whether your SEO campaign is working or not.

31) What is the meaning of competitive analysis?
Competitive analysis does the comparison, between the website I am optimizing, and the
website that is ranked highly in search results.

32) What will be your next steps if your SEO methods or technique does not work?
My first attempt would to try analysis the problem and resolve them step by step :
1. Firstly I would try to see whether it is a new project, and then like to re-check the key
2. Also, I would look for relevant key-words that can be helpful.
3. Even though the webpage and website has been indexed well and still not appearing on
the first 10 pages of search engine result page, then I would make some changes in
page text, titles and description.
4. If website is not indexed well or dropped from the index, than it might comprises
serious issues and re-work might be required.

33) What is PPC?
PPC stands for Pay Per Click and is an advertisement campaign hosted by Google.It is segmented into two modules CPC ( Cost per click) and CPM ( Cost per thousand impressions) through flat rate and bidding respectively. In CPC, if the user clicks on the advert, only then the advertiser will be charged.

34) What is 301 redirect?
It is a method by which the user is redirected to new page url to old page url. It is a permanent
redirect and it is also useful in directing link juice to new URL from old URL.

35) What are Webmaster tools?
Webmaster tool is a service provided by Google from where you can get backlink information,
crawl errors, search queries, Indexing data, CTR etc.

36) What is keyword density ?
From SEO point of view, keyword density will definitely help to stand out your content from

37) what is the formula for knowing keyword density?
The formula to know the keyword density is ( Total number of keyword/ total number of words in your article) multiply by 100.

38) What is robots.txt?
Robots.txt is a text file. It is through this file, it gives instruction to search engine crawlers about indexing and caching of a webpage, file of a website or directory, domain.

39) What will you do, for the company website you are working for, decides to move all the contents to new domain?
The first step would be to update the previous site with a permanent redirect to new page for all pages. After that, I will remove the previous content from search engine in order to avoid duplicate content issues.

40) Can you optimize the website which has pages in millions?
From SEO point of view, for dynamic website, special additional SEO stuffs have to be implemented.
1. Good Internal link structure.
2. Generation of dynamic title and description.
3. Dynamic XML sitemap generation.

41) What is the latest update in SEO?
The latest updates in SEO are:
1. Google Panda
2. Google Penguin
3. Google Humming bird

42) What is Google Panda ?
It is launched on Feburary 2011.The main purpose of this update was just to keep those low quality and low content sites
away from from top ranking visis and give the actual sites they give.

43) What are the factors of Google Panda ?

The factors of Google Panda are :
1.quality control
4.stylistic and factal errors
5.does not have any duplicate content
6.would you be comfortable to give credit card information.

44) What is Google Penguin ?
It was launched on April 2012.The main purpose of this update is to penalised and decrease the ranking of share that breach google web master guidelines set by search engines.

45) What are the factors of Google Penguin ?
The factors of Google Penguin are :
1.Sending automated quries to google.
2.Don’t load pages with irrelavant keywords.
3.Don’t create multiple pages subdomains. or Domains with duplicate content.
4.Follow the guidelines of goole webmaster tool.

46) What is Google Humming bird ?
It was launched on Septmber 2013.It is paying more attention and each word to query ensuring that the whole query is taken into account rather than than particular word’s that the goa is that pages matching the meaning a few words.

47) What is meant by Backlink Quality Checker ?
Through Backlink Quality Checker you can know who links to your website.

48) How will you neutralize a toxic link to your site?
Through Backlink Quality Checker you can know who links to your website. Now, you have to
go to ‘ Toxic link’ report, where you will find all the links, that are harmful to your websites. If there is any link in ‘ Toxic link report’ that matches with the link on your website, then you can remove it by using ‘Google Disavov tool’.

49) What is Google SandBox?
The place where google stores newly websites.They won’t be appear in the search results for normal quries. if ones the google verifies that the website is legitimate it will move the website into google index.

50) How can you categorize the digital marketing ?
The digital marketing is categorized into two segments :
1.Inbound marketing
2.Outbound marketing
1.Inbound marketing
This technique takes the help of social media,digital content in e-bboks,webinars or e-news letters to increase the number of clicks on links and learn more about a comany and its services.

2.Outbound marketing
This segments includes placing ads,cold calls,e-mails or reach out the potential customers through digital mediums.


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