Common Ninja Blog

Discover highly informative and helpful articles on topics such as web development, web design, marketing, business & more!

On-Page SEO Checklist: How to Optimize Every PageFeatured
SEO

On-Page SEO Checklist: How to Optimize Every Page

Sergei Davidov,

A 15-step on-page SEO checklist you can apply to every page on your site, with free tools to check each one.
Design Your Website Without a Designer: Free Tools and TipsWeb Design

Design Your Website Without a Designer: Free Tools and Tips

Sergei Davidov,

You don't need a design degree or an expensive agency. These free tools and principles will help you create a professional-looking website on your own.
SaaS Metrics That Matter: The Founder's Monthly DashboardBusiness

SaaS Metrics That Matter: The Founder's Monthly Dashboard

Sergei Davidov,

Investors and board members ask about MRR. But the metrics that actually save your company are burn rate, CAC, churn, and LTV. Here's the dashboard you need.
Social Media ROI: How to Track Every Click Back to RevenueSocial Media

Social Media ROI: How to Track Every Click Back to Revenue

Sergei Davidov,

Social media feels productive, but is it profitable? Here's how to connect every post, story, and ad to actual revenue using UTM tracking and attribution.
How to Measure and Improve Website Engagement Beyond PageviewsEngagement

How to Measure and Improve Website Engagement Beyond Pageviews

Sergei Davidov,

Pageviews tell you who showed up. Engagement metrics tell you who cared. Here's how to measure what actually matters.
How to Get More Reviews Without Begging: A Repeatable SystemBusiness

How to Get More Reviews Without Begging: A Repeatable System

Sergei Davidov,

The businesses with the most reviews aren't the ones who ask the loudest. They're the ones with a system. Here's how to build yours.
NPS vs CSAT: Which Customer Metric Should You Actually Track?Business

NPS vs CSAT: Which Customer Metric Should You Actually Track?

Sergei Davidov,

NPS measures loyalty. CSAT measures satisfaction. You probably need both, but for different reasons. Here's how to choose.
How to Run a Webinar That Generates Leads, Not Just AttendeesMarketing

How to Run a Webinar That Generates Leads, Not Just Attendees

Sergei Davidov,

Webinars fill pipelines when they're designed for lead generation, not just education. Here's how to turn attendees into qualified leads.
Email List Building: 12 Tactics That Still Work in 2026Email

Email List Building: 12 Tactics That Still Work in 2026

Sergei Davidov,

Email lists are the only marketing asset you truly own. These 12 tactics will help you grow yours without buying contacts or spamming people.
How to Build a Landing Page That Actually ConvertsConversions

How to Build a Landing Page That Actually Converts

Sergei Davidov,

Most landing pages fail because they try to do too much. This step-by-step guide shows you how to build one focused page that converts.
Exit Popups That Convert: Recover Visitors Without Being AnnoyingConversions

Exit Popups That Convert: Recover Visitors Without Being Annoying

Sergei Davidov,

Exit popups can recover 10-15% of leaving visitors when done right. Here's how to design them so they convert instead of annoy.
The Complete Guide to Reducing Your Cost Per LeadMarketing

The Complete Guide to Reducing Your Cost Per Lead

Sergei Davidov,

High CPL eats your marketing budget. This guide shows you exactly where your lead costs are inflated and how to bring them down systematically.
How to Price Products for Profit: A Data-Driven GuideBusiness

How to Price Products for Profit: A Data-Driven Guide

Sergei Davidov,

Pricing is the fastest lever for profit growth. This guide shows you how to set prices using margin data, competitor analysis, and discount modeling.
7 E-Commerce Metrics Every Online Store Should Track WeeklyBusiness

7 E-Commerce Metrics Every Online Store Should Track Weekly

Sergei Davidov,

These 7 e-commerce metrics tell you exactly where your store is leaking revenue. Track them weekly to catch problems before they compound.
Website Conversion Audit: 15 Things to Check Before You Spend on AdsConversions

Website Conversion Audit: 15 Things to Check Before You Spend on Ads

Sergei Davidov,

Before spending a dollar on ads, audit these 15 conversion killers. Most sites leak 30-70% of potential conversions from fixable issues.
Technical SEO Basics: Crawling, Indexing, and Fixing What MattersSEO

Technical SEO Basics: Crawling, Indexing, and Fixing What Matters

Sergei Davidov,

Technical SEO controls whether search engines can find, crawl, and index your pages. Here's what to fix first and the free tools to do it.
Instagram Bio Optimization: 2026 Guide to Maximum EngagementSocial Media

Instagram Bio Optimization: 2026 Guide to Maximum Engagement

Sergei Davidov,

Master Instagram bio optimization in 2026. Learn proven strategies to boost engagement, attract followers, and convert visitors with SEO-optimized bios that work.

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