SEO(Search Engine Optimization) is always considered as one of the long run marketing strategy. So lets discuss about the ranking factor parameters which are used by the Google to rank a website or you can say a HTML webpage on their search engine.

Here are 210 search engine ranking factors.

Domain Factors

• Domain Age
• Keyword Appears In Top Level
• DomainKeyword As First Word In Domain
• DomainKeyword As First Word In Domain
• Keyword As First Word In Domain
• Domain Registration Length
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  Keywords In Subdomain

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  Domain History

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  Exact Match Domain

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  Public vs. Private WhoIs

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  Penalized WhoIs Owner

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  Country TLD Extension

Page Lavel Factors

• Keyword In title tag

• Title Tag Starts With Keywords

• Keyword in Description Tag

• Keywords Appears In H1 Tag

• TF-IDF

• Content Length

• Table Of Content

• Keyword Density

• Latent Semantic Indexing Keywords In Content

• LSI Keywords In Title And Description tag

• Page Covers Topic in Depth

• Page Loading Speed via HTML

• Page Loading Speed via chrome

• Use of AMP

• Entity Match

• Google Hummingbird

• Duplicate Content

• Rel=Canonical

• Image Optimization

• Content Recency

• Magnitude of Content Updates

• Historical Page Updates

• Keyword Prominence

• Keyword In H2 and H3 Tag

• Outbound Link Quality

• Outbound Link theme

• Grammar and Spelling

• Syndicated Content

• Mobile Friendly update

• Mobile Useablity

• “Hidden” Content On Mobile

• Helpful “Supplementary Content”

• Content Hidden Behind Tabs

• Number Of Outbound Links

• Multimedia

• Number of internal links pointing to page

• Quality of Internal Links pointing to Page

• Broken Links

• Reading Level

• Affiliate Links

• HTML Errors/W3C Validation

• Domain authority

• Page’s PageRank

• URL Length

• URL Path

• Human Editors

• Page Category

• WordPress Tags

• Keywords In URL

• URL String

• References and Sources

• Bullets and Numbered Lists

• Priority Of Page In Sitemap

• Too Many Outbound Links

• Quantity Of Other keywords Page Ranks For

• Page Age

• User Friendly Layout

• Parked Domain

• Useful Content

• Content Provides Value and Unique Insights

• Contact Us Page

• Domain Trust/trust rank

• Site Architecture

• Site Updates

• Presence Of Sitemap

• Site Uptime

• Server Location

• SSL Certificate

• Terms of Services and Privacy Pages

• Duplicate Meta Information On Site

• Breadcrumb Navigation

• Mobile Optimized

• Youtube

• Site Usability

• Use of google analytics and google search console

• User reviews/Site reputation

Backlink Factors

• Linking Domain Age

• # Of Linking Root Domain

• # of Links From Separate C class IPs

• # Of Linking Pages

• Backlink Anchor text

• Alt Tag for Image Link

• Links from .edu or .gov domains

• Authority of linking page

• Authority of Linking Domain

• Links from Competitors

• Links from Expected websites

• Links From Bad Neighborhoods

• Guest Posts

• Links from ads

• Homepage Authority

• Nofollow Links

• Diversity Of Link Types

• “Sponsored Links” or Other words around link

• Contextual links

• Excessive 301 Redirects To Page

• Internal Link Anchor Text

• Link Title Attribution

• Country TLD of Referring Domain

• Link Location in Content

• Link Location On Page

• Linking Domain Relevancy

• Page Level Relevancy

• Keyword in Title

• Positive Link Velocity

• Negative Link Velocity

• Links From Hub Pages

• Link From Authority Site

• Linked To As Wikipedia Sources

• Co-Occurences

• Backlink age

• Links from real sites vs splogs

• Natural Link Profile

• Reciprocal Links

• User generated Content Links

• Link From 301

• Schema.org Usage

• TrustRank of Linking site

• Number of outbound link on page

• Forum Links

• Word Count Of linking Content

• Quality Of Linking Content

• Sitewide Links
• User interaction

• RankBrain

• Organic Click Through rate For A Keyword

• Organic CTR For All keywords

• Bounce Rate

• Direct Traffic

• Repeat Traffic

• Pogosticking

• Blocked Sites

• Chrome Bookmarks

• Number Of Comments

• Dwell Time

Special Google Algorithm Rules

• Query Deserves Freshness

• Query Deserves Diversity

• User browsing History

• User Search History

• Featured Snippets

• Geo Targeting

• Safe Search

• Google+ Circles

• YMYL Keywords

• DMCA Complaints

• Domain Diversity

• Transactional Searches

• Local Searches

• Top Stories Box

• Big Brand Preference

• Shopping Results

• Images Results

• Easter Egg Results

• Single Site Results For Brands

• Payday Loans Update

• Brand name Anchor Text

• Branded Searches

• Brand + Keywords Searches

• Site has facebook Page and Likes

• Site has twitter profile with followers

• Official LinkedIn Company page

• Known Authorship

• Legitimacy of Social Media Accounts

• Brand Mentions on Top Stories

• Unlinked Brand Mentions

• Brick and Mortar Location

On Site Webspam Factors

• Panda Penality

• Links to bad Neighborhoods

• Redirects

• Popups or Distracting Ads

• Interstitial Popups

• Site over-Optimization

• Gibberish Content

• Doorway Pages

• Ads Above the Fold

• Hiding Affiliate Links

• Fred

• Affiliate sites

• Autogenerated Content

• Excess PageRank Sculpting

• IP Address Flagged As Spam

• Meta Tag Spamming

Off Site Webspam Factors

• Hacked Site

• Unnatural influx of links

• Penguin Penalty

• Link Profile with high % of Low Quality Links

• Links from unrelated websites

• Unnatural Links Warning

• Low Quality Directory Links

• Widget Links

• Links From the Same class C IP

• Poison Anchor text

• Unnatural Link Spike

• Links From Articles And Press Release

• Manual actions

• Selling Links

• Google Sandbox

• Google Dance

• Disavow Tool

• Reconsideration Request

• Temporary Link Schemes