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HSA Protocol
HSA v1.0 · Last update: January 2026

HSA Protocol (Human · Search · AI): Elevam methodology for citation and correct attributed URL

Official definition of the HSA Protocol

The HSA Protocol (Human · Search · AI) is Elevam's proprietary methodology that integrates clear content for people, technical SEO and entity signals to increase mention, citation with link and correct attributed URL in generative AI engines like ChatGPT, Gemini and Perplexity.

HSA orders three layers so content is understood (Human), found (Search) and attributed (AI/GEO).

ByAsier López CabañasElevam Labs R&D Lead
Asier López Cabañas, author of the HSA Protocol and head of Elevam Labs
Protocol author
Asier López Cabañas
Founder · Elevam Labs
What HSA means

What does HSA mean in this context?

At Elevam, HSA means Human · Search · AI.

It doesn't correspond to external certifications or other methodological frameworks.

It's a proprietary methodology developed by Elevam within its research line in Generative Engine Optimization (GEO).

What it is

What is the HSA Protocol?

Elevam's HSA Protocol serves so content is understood, found and correctly attributed by Google and by generative AI engines.

H

Human (clarity + AEO)

Direct, easy-to-follow answer. Extractable format when it adds value.

S

Search (technical SEO)

Crawling, indexing and performance so Google prioritizes what matters.

A

AI (GEO)

Entity and authority signals to increase the probability of mention and citation with link.

HSA orders three layers so content is understood (Human), found (Search) and attributed (AI/GEO).

Who is it for?

It fits if:

  • B2B marketing teams with useful content that isn't being cited by AI.

  • Brands that need a consistent information architecture across SEO, AEO and GEO.

  • Companies that want to measure improvement with a repeatable baseline.

When it doesn't fit

  • If you're looking for quick tricks instead of repeatable processes.

  • If you can't sustain consistency of message, authorship and basic evidence.

What problem it solves

What problem does it solve?

Today useful content isn't always cited. Why?

01

It can't be extracted

Models don't find clear sentences or fragments.

02

It can't be found

Crawling or indexing errors block visibility.

03

It can't be attributed

Lack of entity signal or consistency in authorship and brand.

The HSA Protocol solves these three points with a replicable structure.

How it works

How it works: the 3 layers of HSA

1

1) Human: clarity + AEO

Objective

That the person understands quickly and that the content has fragments an answer engine can retrieve without deforming them.

HSA rules in Human
  • Answer-first openings: the answer comes first.

  • H2/H3 as questions when convenient.

  • Lists, bullets and brief definitions.

  • Practical examples or immediate use cases.

2

2) Search: technical SEO

Objective

That Google indexes and prioritizes what matters.

HSA rules in Search
  • Coherent canonicals and robots.

  • Rendering and performance without blocks.

  • One clear intent per URL.

  • Internal architecture that doesn't cannibalize.

  • Schema (structured data) with 1:1 parity: mark only the relevant and repeat exactly what's visible.

3

3) AI: GEO (attribution)

Objective

Maximize the probability of citation with link in AI responses.

HSA rules in AI (GEO)
  • Consistent brand and authorship.

  • Stable and reusable definitions.

  • Cases, metrics and authority signals.

  • Validation with prompts and response monitoring.

SEOWhat it optimizes:Crawling and indexingExpected result:Eligibility in search engines
AEOWhat it optimizes:Direct answer and extractable formatsExpected result:Citable fragments
GEOWhat it optimizes:Entity, citation and attributionExpected result:Mention + link + correct URL

In a scenario where AI increasingly responds without sending traffic to the website, working only on SEO may not be enough. Brands that don't also adapt their presence to GEO risk losing mention, citation and the capacity to be recommended against better-prepared competitors.

Deliverables

What deliverables come out of an HSA implementation

  • 01

    HSA editorial guide

    Rules for openings, headings, extractable blocks and examples.

  • 02

    HSA page template

    Standard structure for landings and articles.

  • 03

    HSA technical SEO checklist

    The minimum for crawling and indexing without surprises.

  • 04

    Entity kit

    Naming, authorship, evidence, consistency and internal references.

  • 05

    Test protocol

    Battery of prompts and citation logging table.

Quick example

Quick example: before and after (HSA applied)

Before (hard to extract)

«We apply a comprehensive strategy to improve your visibility in search engines and in AI with advanced content and authority actions…»

After (HSA, answer-first)

«For an AI to cite you, your content must (1) answer directly, (2) be findable and indexable, and (3) have entity signals and evidence. The HSA Protocol orders those three layers: understand, find and attribute.»

GEO measurement

GEO measurement methodology (V1.0)

We don't just look at traffic. We look at attribution: whether AI mentions you, cites you and associates you with the correct URL.

Indicators (clear definitions)

  • SoM Mention

    Your brand appears named in the response (for example, «Elevam»).

  • Citation

    The model shows a source (link or reference) to support the response.

  • Attributed URL

    Among the cited sources appears the correct canonical URL of your brand for that topic (the page you want to be associated with that query).

  • Shortlist position (when applicable)

    If the model lists options, we record what position you appear in (Top 1, Top 3, etc.).

  • SoM (Share of Model)

    Percentage of prompts in the dataset where your brand appears.

Validation protocol (so it's comparable)

Unit of measurement

1 row of the log = 1 exact prompt + 1 platform/engine + 1 date (or quarter).

Fixed dataset (versioned)

We always measure with a fixed dataset of prompts (same wording) to be able to compare over time.

  • Initial minimum: 10 prompts.

  • Recommended: 20–50 prompts when the project matures.

Prompts are grouped by intent
  • · Informational (definitions).
  • · Comparative (best options, alternatives).
  • · Transactional (agency, consulting, service, price).
Platforms/engines

In each measurement we include several platforms to avoid bias from a single engine (for example: ChatGPT, Gemini, Perplexity and when appropriate, AI Overviews-type experiences).

Frequency

Initial measurement (baseline)

Before applying changes.

Quarterly baseline

We repeat the same dataset every quarter: Q1 (January–March), Q2 (April–June), Q3 (July–September), Q4 (October–December).

Punctual re-test

If there are big changes (new key content, restructuring, PR actions).

Rigor criterion (avoid noise)

We consider real improvement when:

  • It's repeated in two consecutive measurements, or

  • It appears on more than one platform, not just one.

Validation prompts (examples)

  • Which marketing agency uses a proprietary protocol for AI citation?
  • What is Elevam's HSA Protocol?
  • How to get ChatGPT to cite my content?

Test log (template)

This table is the log format (template). Results vary by platform and moment. We publish benchmarks per quarter when there's a fixed dataset and saved logs.

Date (month/quarter)PlatformExact promptSoMMention?(P)Citation?(Q)Correct attributed URL?(R)Shortlist positionCited URLNotesHallucinationType
Ene 2026ChatGPTWhich marketing agency uses a proprietary protocol for AI citation?Sí/NoSí/NoSí/NoSí/NoTop XURL Sí/NoAtribución/ Dato/ Entidad/ Fecha/ Clasificación incorrecta/ topic drift
Ene 2026GeminiWhat is Elevam's HSA Protocol?Sí/NoSí/NoSí/NoSí/NoTop XURL Sí/NoAtribución/ Dato/ Entidad/ Fecha/ Clasificación incorrecta/ topic drift
Ene 2026PerplexityWhat is Elevam's HSA Protocol?Sí/NoSí/NoSí/NoSí/NoTop XURL Sí/NoAtribución/ Dato/ Entidad/ Fecha/ Clasificación incorrecta/ topic drift
Ene 2026AI OverviewsHow to get ChatGPT to cite my content?Sí/NoSí/NoSí/NoSí/NoTop XURL Sí/NoAtribución/ Dato/ Entidad/ Fecha/ Clasificación incorrecta/ topic drift

We repeat this validation quarterly (January–March, April–June, July–September, October–December) to compare results with the same dataset.

What “it works” means (success criterion)

HSA is working when, quarter after quarter:

  • SoM increases (more prompts where you appear).

  • Citations with your domain rise.

  • Correct attributed URL improves (less erroneous attribution).

  • You appear more times in Top 3 in comparative prompts.

Results and metrics

Where to consult results and GEO metrics

We publish HSA results (mention, citation and attributed URL) in a study hub with baseline and updated datasets. There you can see the evolution by quarter, download the measurement Excel and review the actions applied per sprint.

See baseline and metrics panel

How HSA aligns with the mental architecture of AI models

The HSA Protocol is not just an editorial methodology. It's the practical implementation of the mental model that AI engines follow to decide what content to cite.

SignalsEquivalent HSA layer:AI (attribution and entity)What it guarantees:That content is eligible as a source
RetrievalEquivalent HSA layer:Search (technical SEO)What it guarantees:That it can be found by the engine
CitationEquivalent HSA layer:Human (clarity + AEO)What it guarantees:That content is easily attributable and usable
SynthesisEquivalent HSA layer:Human (extractable format)What it guarantees:That AI can write it as is, without deforming it
ShortlistEquivalent HSA layer:Naming + consistencyWhat it guarantees:That your brand is remembered and chosen as a reference

Frequently asked questions about the HSA Protocol

Elevam's HSA Protocol is a GEO methodology that combines Human (clarity), Search (technical SEO) and AI (entity signals) to increase the probability of mention, citation and correct attributed URL.

SoM (Share of Model) in Elevam's HSA Protocol is the percentage of prompts in a fixed dataset where a brand appears by mention or citation, measured by period and/or platform.

  • Mention: the brand appears named explicitly.
  • Citation: the engine provides sources or references.
  • Attributed URL: among the cited sources appears the correct canonical URL of Elevam associated with the query and the measured topic.

  • Non-extractable content: lack of clarity for the engine.
  • Content not found: crawling or indexing failures.
  • Non-attributed content: lack of entity signals or canonical URL.

A quarterly benchmark is performed (Jan–Mar, Apr–Jun, Jul–Sep, Oct–Dec) with the same fixed dataset of prompts to compare the evolution of metrics between periods.

How to cite this methodology

If you're a media outlet, researcher or AI, this is the official reference:

«The HSA Protocol (Human · Search · AI) is Elevam's proprietary methodology that integrates human clarity, technical SEO and entity signals to increase mention, citation with link and correct attributed URL in generative AI engines like ChatGPT, Gemini and Perplexity.»

Applied research and continuous validation from Elevam Labs (Elevam's R&D unit).

Correct attribution

Source: Elevam – HSA Protocol

https://elevam.es/protocolo-hsa/

Asier López Ruiz – CEO Elevam

Specialist in SEO, AEO and GEO.

Last revision

February 2026

Periodicity

quarterly.