We measured 13 page-level signals against real Google results for 1,159 keywords, then asked which ones genuinely move a page up the page. Authority wins.
Sitefire tracks a map of 1,159 keywords. For every one of them we pulled the live Google result list from DataForSEO, top 20 SERP results.
We then scraped the content of those 10,054 top-ranking pages. For each page we also bought two authority scores: Page Rating (PR), how much link authority that specific page carries, and Domain Rating by Ahrefs (DR), how strong the whole website is.
Everything in this study is a page that already ranks in Google's top 20. That is an important limit, and we come back to it at the end.
We compared two pages fighting over the same search.
All the pages Google returned for a single keyword, positions 1 to 20.
Every possible pairing. Which one ranked higher, and how did the two differ on each of the 13 signals?
Repeat across 154,919 duels. Signals that consistently pick the winner are the ones that matter.
Because both pages in a duel faced the identical search, everything about the keyword itself (how competitive it is, what the searcher wants, which market) cancels out. What is left is the difference between the two pages, which is exactly what we wanted to isolate.
Two separate questions matter here. The first is "is this real, or did we find noise?" The second is "how much of ranking does it explain?"
Read together: we are highly confident about which levers move rank and roughly how much, while accepting that we cannot predict where a given page will land. Those are different claims, and only the first one is supported.
The same 13 signals, measured for what separates a top-10 page from the rest, then top 5, top 3, and the fight for position 1. Higher number means the signal matters more. The bars show strength in the race for position 1.
| Signal | Top 1 | Top 3 | Top 5 | Top 10 | Strength at #1 |
|---|---|---|---|---|---|
| Decisive | |||||
| Page authority (PR) link strength of that one page |
1.223*** | 0.972*** | 0.767*** | 0.564*** | |
| Page language matches the search | 0.502*** | 0.435*** | 0.384*** | 0.322*** | |
| Meaningful | |||||
| URL depth (a specific page, not a shallow one) | 0.426*** | 0.316*** | 0.207*** | 0.131*** | |
| Search words present in the title | 0.398*** | 0.194*** | 0.139*** | 0.142*** | |
| Site authority (Domain Rating by Ahrefs) | 0.279*** | 0.232*** | 0.221*** | 0.224*** | |
| Topical fit of the page text | 0.244*** | 0.287*** | 0.238*** | 0.177*** | |
| Topical fit of the title | 0.223** | 0.222*** | 0.167*** | 0.125*** | |
| Only matters in the fight for #1 | |||||
| Article length (longer is worse) | −0.214*** | −0.064 | −0.037 | −0.013 | |
| Page displays a date (showing one is worse) | −0.172*** | 0.016 | 0.020 | 0.027 | |
| Search words in the headings | 0.171** | 0.051 | 0.057* | 0.007 | |
| Negligible everywhere | |||||
| Page is the homepage | 0.119 | 0.058 | 0.064* | 0.083** | |
| Age of the page's date | −0.042 | −0.090** | −0.013 | −0.054* | |
| Exact keyword repetition in the text | 0.040 | 0.051 | 0.043 | 0.047* | |
We tested how well the full 13-signal model predicts which pages make the top 5 on a keyword it has never seen, and compared it to a model using page authority alone.
The content signals add essentially nothing on top of authority. That is not a contradiction of the table above. Those content effects are statistically certain but small, and small effects rarely flip a discrete top-5 decision. Being confident that something helps is a different claim from being able to predict the outcome.
The honest boundary of this research: we can tell you which levers move rank and roughly how much. We cannot tell you which position you will land on.
Every page in this study had already earned its way into the top 20. Whatever it takes to get there, all 10,054 of them had it. That is almost certainly where good content does its work: relevance is the entry ticket, and our data cannot see the pages that never got in.
But once a page is in the room, the ranking order is decided somewhere else. Across every tier we measured, from scraping into the top 10 to claiming position 1, the gap is dominated by authority, and the authority effect gets stronger the higher you aim.
Content gets you into the top 20. Authority is what carries you to number one.