What Is the Google Hilltop Algorithm Update (2017)?

The Google Hilltop Algorithm Update (2017) was a pivotal update to Google’s search algorithm designed to enhance search result quality. It was based on the Hilltop Algorithm, which was developed by Krishna Bharat and George A. Mihăilă in 1999. The update focuses on identifying authoritative “expert” documents highly relevant to specific search queries, improving the overall relevance and trustworthiness of search results.

Why Was the Hilltop Algorithm Update Introduced?

The Hilltop Update aimed to solve the limitations of previous ranking algorithms that struggled with distinguishing high-quality content from lower-quality sources. Specifically, the Hilltop Update focused on:

  • Identifying expert documents that were frequently cited by reputable sources.

  • Ensuring that the most accurate and trustworthy information ranked higher.

  • Combatting low-quality content and ensuring authoritative sources were given priority.

This shift ensured that users would be directed to the most reliable and informative content available for their queries.

How Does the Hilltop Algorithm Work?

The Hilltop Algorithm uses a link-based approach to identify expert content. Here’s how it works:

1. Link Structure Analysis:

The algorithm identifies documents that are highly relevant to specific topics based on the quality and frequency of inbound links from other authoritative sources.

2. Expert Documents:

Documents that are frequently cited by other trusted websites are considered “expert” documents. These are prioritized in search results.

3. Relevance Scoring:

Documents are scored based on relevance to the search query, with higher scores given to documents closely aligned with user intent.

4. Authority Evaluation:

The algorithm takes into account the authority of the linking documents. Links from highly reputable sources carry more weight.

What Are the Key Features of the Hilltop Algorithm?

1. Expert Identification:

It identifies documents that are considered experts on a particular topic by analyzing how many high-quality links point to them.

2. Authority Scoring:

The algorithm assesses the authority of linking documents, prioritizing those with links from reputable, high-quality sources.

3. Relevance and Authority Integration:

The Hilltop algorithm integrates both relevance to the search query and the authority of the linked documents to determine rankings.

4. Continuous Updates:

The algorithm continuously updates its database of expert documents and relevance scores to reflect changes in the web’s link structure and content.

What Impact Did the Hilltop Algorithm Update Have on SEO?

The Hilltop Update dramatically impacted SEO practices, pushing the focus onto:

1. High-Quality Backlinks:

Websites had to adjust their strategies to build high-quality backlinks from authoritative sources, enhancing their credibility.

2. Content Quality:

Content that was expertly written and well-cited became essential. SEO professionals had to create authoritative content that demonstrated deep knowledge on specific topics.

3. Niche Expertise:

The algorithm prioritized websites that demonstrated expertise in a specific niche, meaning websites that attempted to cover many broad topics could lose out in comparison.

How Did the Hilltop Algorithm Update Affect Website Rankings?

Websites that positioned themselves as authoritative sources in their niche saw significant improvements in their search rankings. Those that relied on:

Low-Quality Backlinks:

Websites with spammy or irrelevant backlinks saw declines in their rankings.

Thin Content:

Sites with superficial content failed to make the cut and were demoted in search results.

What Are the Long-Term Implications of the Hilltop Algorithm Update?

The Hilltop Algorithm Update emphasized the importance of:

1. Content Quality:

Websites must continue to focus on producing in-depth, well-researched content that can be seen as an authority on the subject matter.

2. Link-Building:

High-quality backlinks from trusted sources became a more critical aspect of SEO.

3. Authoritative Websites:

Establishing authority in a particular field or niche became key to ranking well in Google.

How Does the Hilltop Algorithm Update Compare to Other Google Algorithm Updates?

Unlike Panda (which focused on thin content) or Penguin (which targeted spammy backlinks), the Hilltop Algorithm specifically dealt with identifying expert content. While those updates focused on cleaning up specific issues, Hilltop sought to reward trusted, authoritative sources and elevate them in search results.

The Hilltop Algorithm added sophistication by integrating expertise and authoritative content as ranking signals.

What Are the Challenges Associated with the Hilltop Algorithm Update?

Some challenges of the Hilltop Algorithm include:

1. Difficulty for New Sites:

New or smaller websites may struggle to establish themselves as authoritative sources since the algorithm favors content that is well-cited by other high-authority sources.

2. Continuous Effort:

Websites must continuously update and improve their content and backlink profiles, which can be resource-intensive.

How Can Websites Adapt to the Hilltop Algorithm Update?

To adapt, websites should:

1. Produce High-Quality, In-Depth Content:

Focus on specific niches and create content that provides deep knowledge and expertise.

2. Earn Backlinks from Authoritative Sources:

Establish relationships with reputable websites and create content that others want to link to.

3. Become an Authority in Your Niche:

Focus on becoming a niche leader by offering detailed, well-researched content.

4. Encourage Engagement:

Foster user engagement through comments, shares, and interactions, which signal to Google that your content is valuable.

5. Regular Content Updates:

Keep content fresh and relevant to ensure it remains a trusted resource over time.

Final Thoughts on Hilltop Algorithm

The Hilltop Algorithm was a significant step in improving search results by prioritizing authoritative, expert content. As Google continues to evolve, this update encourages websites to establish themselves as trusted sources through high-quality content and relevant, authoritative backlinks. It serves as a reminder that content depth and niche expertise are essential for long-term SEO success.

Want to Go Deeper into SEO?

Explore more from my SEO knowledge base:

▪️ SEO & Content Marketing Hub — Learn how content builds authority and visibility
▪️ Search Engine Semantics Hub — A resource on entities, meaning, and search intent
▪️ Join My SEO Academy — Step-by-step guidance for beginners to advanced learners

Whether you’re learning, growing, or scaling, you’ll find everything you need to build real SEO skills.

Feeling stuck with your SEO strategy?

If you’re unclear on next steps, I’m offering a free one-on-one audit session to help and let’s get you moving forward.

Newsletter