Gixo Quill · content guide
SEO Case Studies
SEO case studies are published by the party that benefits from them, so read them as marketing with data attached. A credible one states the starting position, the timeframe, what else changed, and what did not work. Most omit at least two of those, and the omissions are where the misleading happens.
Last reviewed: August 2026
What a credible case study contains
- The starting position, in absolute numbers. '300% growth' from 40 visits is 160 visits.
- The timeframe. Results over three years read very differently from three months.
- What else changed. A rebrand, a funding round or a new product will move traffic regardless of the SEO work.
- What did not work. Its absence is the strongest signal that you are reading marketing.
- The business outcome, not just traffic. Traffic that did not convert is not a result.
- Attribution honesty. Whether the claimed cause was tested or assumed.
Reading the numbers
| Claim | Ask | Common answer |
|---|---|---|
| 300% traffic growth | From what base? | A very small one |
| Ranked #1 for a keyword | What volume, and for how long? | Low volume, briefly |
| Doubled organic revenue | Was branded traffic separated? | Usually not |
| Results in 30 days | Was anything else launched? | Frequently yes |
| Our strategy caused it | Was it tested against a control? | Almost never |
Writing one that survives scrutiny
How Gixo Quill handles this
Quill has no case-study feature to sell here. The relevant point is narrower: its checks are deterministic, so a claim in your own case study about structure, schema or overlap is one you can re-run and verify rather than assert.
Frequently asked questions
Are SEO case studies reliable?
Read them as marketing with data attached. They are published by the party that benefits, and the omissions — base numbers, timeframe, confounders — are where the misleading happens.
What should I look for first?
The starting position in absolute numbers. A 300% increase from 40 visits is 160 visits, and percentage-only reporting is the most common way results are inflated.
What makes a case study credible?
A section on what did not work. Its presence signals the author is describing what happened rather than selling; its absence signals the opposite.
Why does the timeframe matter so much?
Because results over three years and three months imply completely different things about repeatability, and charts often obscure which one you are looking at.
How do I write a case study people trust?
State the base, give the timeframe up front, name everything else that changed in the period, include what failed, and report the business outcome rather than only traffic.
Related content guides
Write results you can re-run
Quill's checks are deterministic, so claims about structure and overlap can be verified rather than asserted.