28 FREE GUIDES & TUTORIALS

Credify resources

Practical guides for SEO professionals, students, researchers, and writers: E-E-A-T, citations, readability, and AI productivity. No fluff, just actionable information.

Algorithm UpdatesJul 2026

Google Algorithm Updates Timeline (2011–2026): Every Core & Spam Update

Every major Google core update and spam update from Panda to the 2026 continuous-update era: dates, what changed, winners/losers, and a recovery checklist.

14 min readRead article →
Algorithm UpdatesAug 2026

How Does Google Actually Rank Pages? Every Ranking System Explained

Every ranking system in Google's own documentation, plus NavBoost and Information Gain, the two it never put in its own docs: sourced from a DOJ antitrust trial and a 2018 patent.

15 min readRead article →
Algorithm UpdatesAug 2026

Why Google Patents Matter for SEO (The Ones Worth Reading)

The five Google patents worth reading in full — PageRank, reasonable surfer, historical data, the Panda patent, site quality score — and a four-step test for telling a shipped system from a filed idea.

14 min readRead article →
Algorithm UpdatesJul 2026

The Evolution of E-E-A-T: From E-A-T to Today (2014–2026)

Every Quality Rater Guidelines revision from the 2014 E-A-T framework to the December 2022 addition of Experience, through the 2026 AI-content era.

10 min readRead article →
Algorithm UpdatesJul 2026

Google AI Overviews Timeline (2023–2026): From SGE to AI Mode

Every milestone from the 2023 Search Generative Experience launch to AI Overviews, AI Mode, and 2026, plus how to optimize content for them.

11 min readRead article →
Algorithm UpdatesJul 2026

History of Google Panda: The Content Farm Update Explained (2011–2026)

What the Google Panda update targeted, every refresh from 2011 to Panda 4.2, and how thin content is penalized today.

10 min readRead article →
Algorithm UpdatesJul 2026

History of Google Penguin: The Link Spam Update Explained (2012–2026)

What the Google Penguin update targeted, every refresh from 2012 to Penguin 4.0, and how link spam is penalized today.

10 min readRead article →
Algorithm UpdatesJul 2026

History of Google Core Updates: What They Are & Full List (2018–2026)

What a Google core update actually is, why Google never names specific factors, and the full list of core updates from March 2018 to the continuous-update era.

13 min readRead article →
Algorithm UpdatesJul 2026

Helpful Content Update Survival Guide: How to Recover & Stay Safe

How to tell if you were hit by the Helpful Content Update, the people-first content checklist, and how to recover: from the 2022 launch to its 2024 merge into core.

12 min readRead article →
Getting StartedApr 2026

What Is E-E-A-T? Google's Content Quality Framework Explained

E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness. Learn what each dimension means, how Google uses it, and why it directly affects your rankings.

6 min readRead article →
GuidesApr 2026

How to Improve Your E-E-A-T Score: Step-by-Step Guide

Specific, actionable steps to improve your score across all four E-E-A-T dimensions. Includes what to prioritise depending on where your current score falls.

9 min readRead article →
Best PracticesApr 2026

The E-E-A-T Pre-Publish Checklist: 26 Signals to Check

A practical checklist covering every E-E-A-T signal Google's quality raters look for. Run this before publishing any article, product page, or landing page.

7 min readRead article →
GuidesApr 2026

E-E-A-T for YMYL Content: Health, Finance, and Legal Websites

Your Money or Your Life topics face the most scrutiny from Google's quality raters. This guide explains the higher bar for YMYL content and how to meet it.

7 min readRead article →
TutorialsApr 2026

Schema Markup and E-E-A-T: How Structured Data Signals Expertise

Implementing Person, Organization, and Article schema markup is one of the most effective technical ways to demonstrate authoritativeness. Step-by-step implementation guide.

9 min readRead article →
Best PracticesApr 2026

AI-Generated Content and E-E-A-T: How to Make It Pass Google Quality Reviews

AI content can rank well: but only if it demonstrates real E-E-A-T signals. Learn the exact edits to make to AI-generated drafts before publishing.

7 min readRead article →
GuidesApr 2026

Building Authoritativeness: Citations, Expert Quotes, and External Links

Authoritativeness is not just about backlinks: it's about how you reference credible sources within your content. This guide shows you where and how to add citations effectively.

6 min readRead article →
Best PracticesApr 2026

Trustworthiness Signals: What Google Wants to See on Every Page

From clear author bylines to balanced claims and factual accuracy: here are the specific trust signals that quality raters check on every page they evaluate.

5 min readRead article →
TutorialsApr 2026

How to Run an E-E-A-T Audit on Your Entire Website

A systematic approach to auditing your website for E-E-A-T gaps. Prioritize pages that have dropped in rankings and learn how to batch-improve content at scale.

10 min readRead article →
Writing TipsApr 2026

How to Paraphrase Without Plagiarizing: A Student's Guide

Paraphrasing done wrong is plagiarism: even when the intent was honest. Learn the correct technique, the most common mistake (patchwriting), and how to always cite a paraphrase correctly.

6 min readRead article →
Writing TipsApr 2026

Common Grammar Mistakes in Academic Writing (And How to Fix Them)

The 10 grammar mistakes that appear most often in student essays: subject-verb agreement, comma splices, dangling modifiers, apostrophes, and more: with corrected examples for each.

7 min readRead article →
Citation StylesApr 2026

APA vs MLA vs Chicago: Which Citation Style Should You Use?

The three most common academic citation styles explained side by side. Understand which disciplines use each format, see real examples, and learn how to choose the right one for your assignment.

8 min readRead article →
Essay WritingApr 2026

How to Write a Strong Thesis Statement (With Examples)

A weak thesis kills an essay before it starts. Learn the exact formula for a strong, arguable thesis: with before-and-after examples for argumentative, analytical, and expository essays.

7 min readRead article →
Writing TipsApr 2026

Passive Voice in Writing: When It Weakens Your Work and How to Fix It

Passive voice is not always wrong: but it is often overused. Learn how to identify it, when it is acceptable in academic and professional writing, and how to convert it to active voice.

5 min readRead article →
Writing TipsJun 2026

I Like Coffee Change Into Passive Voice – Easy Grammar Guide

Learn how to change "I like coffee" into passive voice step by step: with simple rules, clear examples, and the common mistakes beginners make.

5 min readRead article →
Writing TipsJun 2026

Passive to Active Voice Converter: Free Online Tool

Learn how to convert passive to active voice in 3 steps: with 8 real examples, a conversion table, and guidance on when NOT to convert. Free passive to active voice converter included.

6 min readRead article →
Citation StylesApr 2026

How to Cite Sources: A Complete Guide for Students

From in-text citations to full reference lists: everything you need to cite websites, books, journal articles, and online sources correctly in APA, MLA, and Chicago.

8 min readRead article →
Writing TipsApr 2026

Academic Writing Clarity: How to Write Clear, Precise Sentences

Unclear writing costs marks and loses readers. Learn the six most common clarity killers in academic writing: nominalization, hedging, jargon, long sentences, filler words, and passive voice: and how to fix each one.

6 min readRead article →
AI ProductivityJun 2026

Reducing Token Waste in ChatGPT & Claude: Token Efficiency AI Guide

Reduce token waste in ChatGPT and Claude by 40–76%. 7 field-tested techniques covering chatgpt token usage, ai token usage, HTML-to-Markdown, chunking, and prompt caching: with real before/after numbers.

9 min readRead article →

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