2017 was the year search engine optimization became deeply intertwined with trust, mobile experience, and emerging technologies like voice search. Google began testing mobile-first indexing, the concept of expertise, authoritativeness, and trustworthiness gained prominence, and voice assistants started changing how people searched. Understanding how to boost SEO in 2017 reveals the roots of many strategies that remain essential today.

This was a period when SEO shifted from technical tricks toward building genuine credibility and delivering excellent user experiences across all devices.

Rebuild Your Authority With Us

If your site has lost ground since 2017, we can help you regain it. We are AAMAX, a full-service digital marketing company offering web development, digital marketing, and SEO services worldwide. You can hire us to strengthen your content credibility, optimize for mobile and voice, and rebuild the trust signals that search engines reward. Our search engine optimization approach focuses on lasting authority rather than short-lived tricks.

Mobile-First Indexing Testing Begins

In 2017, Google started testing mobile-first indexing, meaning it would primarily use the mobile version of a site for ranking and indexing. This made mobile optimization more urgent than ever. Sites needed to ensure their mobile pages contained the same valuable content as desktop, with fast load times and clean design. The shift confirmed that mobile was no longer secondary.

The Rise of E-A-T

Google's Quality Rater Guidelines placed heavy emphasis on Expertise, Authoritativeness, and Trustworthiness, known as E-A-T. In 2017, marketers realized that demonstrating credibility, especially for topics affecting health, finance, and safety, was crucial. Author bios, credible sources, accurate information, and a trustworthy site reputation became ranking considerations. E-A-T has only grown more important in the years since.

Voice Search Gains Traction

With smart speakers and voice assistants entering millions of homes, 2017 saw voice search rise. People phrased spoken queries as natural questions rather than terse keyword strings. Marketers began optimizing for conversational, long-tail queries and structuring content to answer specific questions directly. This trend foreshadowed today's AI-driven, conversational search.

Featured Snippets and Position Zero

Featured snippets became even more valuable in 2017, especially as voice assistants often read them aloud as answers. Winning position zero meant capturing visibility beyond the traditional top ranking. Marketers structured content with clear questions and concise answers, used lists and tables, and targeted question-based keywords to earn these prized spots.

Link Quality Over Quantity

By 2017, the message on link building was crystal clear: a few high-quality, relevant backlinks outperformed hundreds of low-quality ones. Digital PR, original research, and genuinely link-worthy content became the preferred methods for earning authority. This quality-first approach remains the gold standard for building domain authority today.

HTTPS Becomes Standard

Google began marking non-HTTPS sites as "not secure" in Chrome during 2017, pushing widespread adoption of SSL certificates. Security became both a trust signal and a user experience factor. Today, HTTPS is simply expected, and its absence actively harms both rankings and credibility.

Integrated Marketing for Stronger Signals

2017 reinforced that SEO thrives when combined with broader efforts. A cohesive digital marketing strategy across content, social, and email helped brands build the awareness and engagement that support strong search rankings. Visibility across channels reinforced authority in the eyes of both users and search engines.

What Still Matters Today

The 2017 lessons are foundational: prioritize mobile, demonstrate expertise and trust, optimize for conversational queries, target featured snippets, earn quality links, and secure your site. These principles have only intensified as search engines and AI grow more sophisticated at evaluating credibility and intent.

Putting the 2017 Lessons to Work

To modernize a strategy rooted in 2017, start by strengthening the credibility signals on your most important pages. Add clear author information, cite reputable sources, and keep facts accurate and current, especially for topics that affect people's health, finances, or safety. Review your content for conversational, question-based phrasing so it can capture both voice searches and featured snippets. Audit your backlinks and prioritize earning a smaller number of high-quality, relevant links over chasing volume. Confirm your entire site runs on HTTPS and that your mobile experience matches your desktop content. These trust-and-experience improvements are exactly what search engines have continued to reward, so investing in them now pays dividends well into the future.

Final Thoughts

Boosting SEO in 2017 meant building trust, embracing mobile-first thinking, and preparing for voice and conversational search. Those forward-looking strategies still power effective SEO today. If your site needs to rebuild its authority and adapt to modern search, our team is ready to help you climb back to the top.

Frequently Asked Questions

What were the biggest SEO priorities in 2017? Trust and authority took center stage, alongside the rise of voice search and mobile experience. Google increasingly rewarded credible content with clear expertise, secure HTTPS sites, and pages that answered conversational, question-based queries.

How did voice search change SEO in 2017? The growth of voice assistants pushed marketers toward natural, conversational phrasing and question-based content. Optimizing for the way people actually speak helped capture both voice results and featured snippets.

Is HTTPS really a ranking factor? Yes. By 2017 security had become an expectation, and browsers began flagging non-secure sites. Migrating to HTTPS protects users and removes a small but real barrier to ranking and trust.