With AI, you can generate dozens (if not hundreds) of articles in hours and publish at scale. But publishing is the easy part. What happens after they go live is what matters.

Together with the research team at SE Ranking, we ran a 16-month experiment to track how well AI-generated content performed on brand-new domains with zero authority.

As you will see, the results are hard to call a success.

Here’s the full story behind our experiment.

Methodology

The goal was simple: test how far AI content — with no human editing, rewriting, or enhancement — could go in search.

How quickly would it get indexed? Could it rank for relevant queries? Most importantly, could it drive traffic?

We started by purchasing 20 new domains with no backlinks, domain authority, brand recognition, or search history.

Each domain focused on a different niche, covering topics such as:

• Arts & Entertainment
• Business & Services
• Community & Society
• Computers & Technology
• Ecommerce & Shopping
• Finance & Accounting
• Food & Drink
• Games & Accessories
• Health & Medicine
• Industry & Engineering
• Hobbies & Interests
• Home & Garden
• Jobs & Career
• Law & Government
• Lifestyle & Well-being
• Pets & Animals
• Science & Education
• Sports & Fitness
• Travel & Tourism
• Vehicles & Boats

For each niche, we gathered 100 informational “how-to” keywords—long-tail terms with lower competition.

Each site received 100 AI-generated articles, totaling 2,000 pieces across the experiment.

After publishing, we added the sites to Google Search Console and submitted sitemaps.

From that point on, we left the sites untouched to observe performance over time.

Timeline & key results 

Month 1: indexing and early visibility

About 71% of new AI-generated pages were indexed within the first 36 days. They generated over 122,000 impressions and 244 clicks. Even at this early stage, 80% of sites ranked for at least 100 keywords each.

Months 2–3: growth continues

Cumulative impressions grew to over 526,000, with 782 clicks. Content continued to perform well without backlinks, promotion, internal linking, or additional SEO tactics.

Months 3–6: ranking collapse

By about three months, only 3% of pages remained in the top 100. Early relevance helped pages get indexed and briefly appear in search, but without authority, uniqueness, or E-E-A-T signals, rankings dropped sharply. Google still indexed the pages, but users rarely saw them.

Month 16: long-term stagnation

After over a year, visibility remained low across most sites. Impressions and clicks were minimal, and no site showed meaningful recovery. After the August 2025 Google spam update, pages ranking in the top 100 rose to 20% — up from 3% at six months.

Month 1: indexing and early visibility

Just over a month after publication (36 days), the first results came in — and they were stronger than expected for brand-new sites.

Of 2,000 articles, 70.95% were indexed (1,419 pages). For zero-authority domains, that’s notable, as getting new sites fully indexed is often a challenge. This shows Google is still willing to crawl and index AI-generated content in most cases.

Some sites performed particularly well. Eleven of the 20 domains had all 100 pages indexed.

• Most were in broad, evergreen niches like Food & Drink, Home & Garden, Jobs & Career, and Lifestyle & Well-being.
• More competitive or specialized areas, like Ecommerce & Shopping, saw slower indexation, likely due to stricter evaluation.

Along with indexation came early visibility. During this first month, the sites collectively generated:

• 122,102 impressions
• 244 clicks

Several niches stood out generating more than 10,000 impressions in the first month alone.

• Hobbies & Interests: 17,425 impressions

• Business & Services: 17,311 impressions

• Travel & Tourism: 13,598 impressions

• Lifestyle & Well-being: 13,072 impressions
• Law & Government: 11,794 impressions
• Games & Accessories: 11,083 impressions
• Vehicles & Boats: 10,677 impressions

In terms of keyword coverage, many sites performed surprisingly well within the first month. Eight sites ranked for more than 1,000 keywords, while another eight ranked for 100 to 1,000.

Even at this early stage, 80% of sites with fully AI-generated content appeared in search for hundreds or thousands of queries.

Notably, over 28% of ranking URLs were already in the top 100. Within the first month, many pages reached positions where searchers could see them.

Overall, these results show AI-generated content can gain traction quickly—even without backlinks, editorial input, or additional SEO work. In the short term, content alone was enough to get indexed and appear in search.

Months 2–3: growth continues

This early visibility wasn’t short-lived. Over the following weeks, impressions and clicks kept growing as Google Search discovered and tested pages.

By about two and a half months after publication, cumulative results across all sites had grown:

• Impressions: 122,102 to 526,624
• Clicks: 244 to 782

Keyword coverage also expanded:

• 12 sites ranked for 1,000+ keywords (up from 8 in the first month).
• The remaining 8 sites ranked for 100–1,000 keywords.

This pattern is typical for new sites. When Google finds fresh content that matches real queries, it tests that content across results. Pages appear for related queries as Google evaluates their helpfulness.

That’s what happened here. Even without backlinks, internal linking, or SEO improvements, the content gained exposure because it targeted low-competition queries and followed basic SEO structure.

At this stage, it could look like a strong case for large-scale AI content. The sites were new, the content fully AI-generated, and impressions kept rising.

But the growth didn’t last.

Month 3-6: the ranking collapse

Around Feb. 3, 2025, roughly three months after publication, the experiment hit a turning point.

• Only 3% of pages remained in the top 100, down from 28% in the first month. 

In practical terms, the content remained indexed but rarely appeared where users could see it.

Early relevance can help pages get indexed and appear in search results for a time. Without stronger signals — authority, E-E-A-T, unique insights — those rankings are hard to sustain.

By the six-month mark, Google Search Console showed the following cumulative totals across all sites:

• Impressions: 526,624 to 706,328 
• Clicks: 782 to 1,062

At first glance, these numbers suggest continued growth. But that’s not what happened.

Most activity occurred early. In the first 2.5 months, the sites generated roughly 70% to 75% of total impressions and clicks. Over the next 3.5 months, growth slowed sharply, adding only 25% to 30%.

Month 16: the long-term picture

The experiment ran for over a year to see if rankings would recover.

For the most part, they didn’t.

After the drop around the three-month mark, visibility remained extremely low for the rest of the experiment.

There were a few brief fluctuations. The most notable came in late August 2025.

Starting in August, 50% of sites (10 out of 20) saw a two-week spike in impressions. This closely aligned with the rollout of the Google August 2025 spam update, which began Aug. 26.

However, the boost didn’t lead to a sustained recovery.

Among the sites that saw a short-term lift:

• Six quickly lost visibility and returned to prior lows
• Four maintained slightly improved performance, similar to early post-publication levels

Following the update, pages ranking in the top 100 rose to 20% — up from 3% at six months. This remained below the 28% seen in the first month, but the August 2025 spam update appeared to have improved some rankings.

In total, 66.9% of pages were still indexed, up slightly from 61.45% at six months.

The following sites had some of the lowest numbers of indexed pages:

• Finance domain (9 of 100)
• Health domain (14 of 100)

This is likely due to their YMYL nature, where Google applies stricter quality and trust standards.

By month 16, cumulative results across all sites were:

• Impressions: 706,328 to 1,092,079
• Clicks: 1,062 to 1,381

Most impressions still came from the early growth phase, before rankings dropped.

Why SEO visibility didn’t last

The most obvious explanation is that the content didn’t meet Google’s quality standards — and understandably so.

The 2,000 articles lacked many signals Google uses to assess quality and trust:

• Authority. No backlinks or external validation. Without these, new domains struggle to compete with established sites.
• Expertise and credibility. No authors, credentials, or real-world expertise — especially critical in finance, health, and law.
• Content differentiation. Much of the content resembled what already exists. Without unique insights, pages struggle to stand out.
• Site structure. No internal linking, topical organization, or clear hierarchy to help Google understand page relationships.

Google can identify AI-generated patterns. Without authority, uniqueness, or supporting signals, early visibility declines.

Bonus insight: how new AI content supports existing pages

In early March 2026, we ran a follow-up experiment, adding new AI-generated content to eight tracked sites.

As of March 13, not all new content has been indexed. However, sites with new content already show a noticeable increase in search impressions.

Interestingly, this lift comes primarily from older posts, not the newly published ones.

For example:

• Business-focused website (from 458 impressions in February 2026 to 7,750 impressions in March 2026)  – 17x increase.

• Law-focused website (from 19 impressions in February 2026 to 356 impressions in March 2026)  – 19x increase.

• Science-focused website (from 34 impressions in February 2026 to 633 impressions in March 2026)  – 19x increase.

This experiment shows that publishing new content—even fully AI-generated—can lift traffic to older pages that had been stagnant for months. Fresh content may signal to Google that the site is active and up to date, giving the site a temporary boost.

However, these are early results and don’t guarantee lasting gains in rankings or traffic.

Key takeaway: AI can speed up content creation, but not replace SEO

The results of this 16-month experiment don’t mean AI content is useless. They show AI alone isn’t enough to drive lasting impact.

Early traffic and impressions may look promising, but without a clear SEO strategy and human guidance, those gains will likely fade within a few months.