What is Google Core Update?

What Is a Google Core Update?

A Google Core Update is a significant, broad change to Google’s search ranking algorithm. Unlike targeted updates that focus on specific issues (like page speed or spam), core updates reassess how Google evaluates content quality, relevance, and authority across all websites and search queries.

Core updates are not penalties. They are recalibrations. If your site drops in rankings after a core update, it does not mean you did something wrong. It means Google changed what it values, and other sites now better match those new criteria.

How core updates differ from other updates:

Update Type	Scope	Frequency	Example
Core Update	All websites, all topics	3-4 times per year	March 2024 Core Update
Targeted Update	Specific issue or niche	As needed	Page Experience Update
Spam Update	Spam and manipulative tactics	Multiple times per year	Spam Updates
System Update	Specific ranking system	Ongoing	Helpful Content System

How Core Updates Work

Google’s search algorithm uses hundreds of signals to rank pages. A core update changes how these signals are weighted and how they interact with each other.

Analogy: Imagine Google publishes a list of the top 100 movies. Every few months, they update the list. Some movies rise because critics now value different qualities. Some fall because what made them great last year matters less now. The movies did not change — the criteria did.

Core updates work the same way. Google does not punish sites. It re-evaluates them against updated quality standards.

What Core Updates Evaluate

Google has stated that core updates assess:

1. Content quality and depth — Does the content thoroughly answer the searcher’s question?
2. Expertise and authority — Is the content created by someone with real expertise?
3. Trustworthiness — Is the information accurate and reliable?
4. Page experience — Does the page load fast and work well on mobile?
5. Search intent match — Does the content match what the searcher actually wants?

Google’s Core Update History

Google has rolled out major core updates since 2018:

Update	Date	Focus Area
Medic Update	August 2018	YMYL (Your Money Your Life) content, health, finance
March 2019 Core Update	March 2019	Broad quality reassessment
BERT Update	October 2019	Natural language understanding
January 2020 Core Update	January 2020	Broad quality reassessment
May 2020 Core Update	May 2020	Broad quality reassessment during COVID
December 2020 Core Update	December 2020	Broad quality reassessment
June 2021 Core Update	June 2021	Page experience integration
July 2021 Core Update	July 2021	Broad quality reassessment
November 2021 Core Update	November 2021	Broad quality reassessment
May 2022 Core Update	May 2022	Broad quality reassessment
September 2022 Core Update	September 2022	Broad quality reassessment
March 2023 Core Update	March 2023	Broad quality reassessment
August 2023 Core Update	August 2023	Broad quality reassessment
March 2024 Core Update	March 2024	Spam and low-quality content
August 2024 Core Update	August 2024	Broad quality reassessment
March 2025 Core Update	March 2025	Broad quality reassessment
June 2025 Core Update	June 2025	Broad quality reassessment

How to Respond to a Core Update

If Your Rankings Improved

• Document what changed. Which pages rose? Which keywords?
• Analyze winning pages. What do they have in common?
• Double down on what works. Create more content following the same patterns.

If Your Rankings Dropped

Step 1: Wait for the update to finish.

Core updates typically take 1-2 weeks to fully roll out. Do not make major changes while the update is still rolling out.

Step 2: Analyze what changed.

• Which pages dropped? By how much?
• Which competitors rose? What changed on their pages?
• Did specific keyword categories get hit harder than others?

Step 3: Audit your content against Google’s quality questions.

Google publishes a list of questions to ask yourself about your content. The most important ones:

• Does the content provide original information, reporting, research, or analysis?
• Does the content provide a substantial, complete, or comprehensive description of the topic?
• Does the content provide insightful analysis or interesting information that is beyond obvious?
• If the content draws on other sources, does it avoid simply copying or rewriting those sources?
• Does the headline and/or page title avoid being exaggerative or shocking in nature?
• Would you expect to see this content in or referenced by a printed magazine, encyclopedia, or book?

Step 4: Make improvements.

Focus on content quality, not technical tricks:

• Add depth and original insights
• Update outdated information
• Improve readability and structure
• Add expert quotes or original data
• Enhance E-E-A-T signals (author bios, credentials, sources)

Step 5: Wait for the next core update.

Recovery from a core update drop typically requires waiting for the next core update. Google recrawls and re-evaluates your improved content during the next update cycle. This can take 3-6 months.

Core Update Myths

Myth: Core updates target specific niches.

Core updates affect all niches. However, some niches (health, finance, legal) feel the impact more because Google holds them to higher quality standards.

Myth: You can “recover” from a core update penalty.

Core updates are not penalties. There is nothing to recover from. You need to improve your content so it better matches Google’s updated quality criteria.

Myth: Technical fixes reverse core update drops.

Core updates evaluate content quality, not technical issues. Fixing your schema markup or improving your page speed will not reverse a core update drop. Content improvements will.

Myth: Disavowing links helps after a core update.

Core updates are not about links. Disavowing backlinks has no effect on core update performance.

Related Terms

• Google Algorithm
• Ranking Factors
• Content Quality
• E-E-A-T
• Helpful Content System