2026-09-17, Fundamentals · SERP API · Google

What is a SERP? Anatomy of a Google results page in 2026

A SERP (search engine results page) is the page a search engine returns for a query. On Google in 2026 it is a stack of distinct blocks: ads, sometimes an AI Overview, organic results, People Also Ask, a local pack for local queries, shopping grids for product queries, a knowledge panel for entities, discussion threads, and related searches at the bottom. Which blocks appear, and in what order, depends on the query, market and device.

Below is each block, what it is for, and the field POST /v1/monitor/google returns for it, followed by the blocks that are not returned as fields.

Two kinds of result

Google’s own visual elements gallery (checked 2026-09-17) names the parts of a result. It distinguishes a text result, “based on the textual content of the page”, from a rich result, which “typically relies on structured data in the markup of your page”, and names the pieces of a result: title link, snippet, attribution (site name, favicon, visible URL, breadcrumb), byline date and sitelinks. The same gallery names two page-level groups: a related searches group, “a cluster of related searches that other people have done”, and a related questions group, “a cluster of questions related to the user’s initial search”, which is the block most SEOs call People Also Ask.

Everything else on the page is a SERP feature: a block that is not a plain organic listing.

Which blocks appear changes per query, market and device, so the page you get back is a subset of this stack and several of these fields are absent.

The blocks

The order below is for reading convenience. Google changes which blocks appear and where per query, market and device, so treat it as a map, not a rule.

Ads

Text ads appear above and below the organic results; product-style sponsored cards appear in carousels at the top or on the right. In the response, ads[] holds both, with type (RESULT for text ads, SHOPPING_CARD for sponsored product cards), blockPosition (top, bottom, middle, rhs), position within the block, page, title, url, domain, displayedUrl, description and ad sitelinks[]. Shopping cards add price, oldPrice, store, category and imageUrl.

AI Overview

An AI Overview is a generated answer on the results page with links to supporting sources. Google’s documentation on AI features says AI Overviews “are only shown when our systems determine that it is additive to classic Search, and as such, often don’t trigger” (AI features and your website, checked 2026-09-17). The same page says pages need to be indexed and eligible to be shown with a snippet, and that there are no additional requirements.

The API returns it as aioverview when you send include.aioverview (for example {} or {"markdown": true}). The object carries text, markdown (when requested), sources[] (position, url, label, description), citationPills[] (the inline chips, grouped by citationPillId), relatedLinks[], videos[] and ads[] shown inside the overview. It is null when no overview was available. For how the overview relates to the older featured snippet, see featured snippets and AI Overviews.

Organic results

The classic “ten blue links”. Each item in organicResults[] has position (1-indexed, counted across all pages you requested), page, title, link, displayedLink, snippet, date and sitelinks.inline[]. The pages field fetches 1 to 10 pages. Positions here are organic only; ads and features are not counted. Rank tracking on a SERP API explains what that means for position reporting.

People Also Ask

An expandable list of related questions. Each item in peopleAlsoAsk[] has question and type:

• LINK: answered by a web page, with title, link and snippet.
• AIOVERVIEW: answered by an AI-generated overview. With include.paaAioverview: true the item also carries markdown and sources[].
• UNKNOWN: classified as neither.

The content-strategy use of this block is in People Also Ask for SEO; extraction and expansion mechanics are in PAA keyword research.

Local pack

For local-intent queries, a map with a short list of businesses. localResults[] returns each place with position, title, placeId, rating, reviews, price, type, yearsInBusiness, address, phone, hours, description and links (website, directions). localResultsMoreLink is the URL of the expanded list. It is returned for desktop searches only and omitted when there is no pack. Set location to see the pack a searcher in a given city sees; see local rank tracking.

Shopping grids

Organic product grids such as “Popular products”. shoppingCards[] returns title, position, category (the grid’s header), price, oldPrice, promoLabel, store, rating, reviews, thumbnail and productLink, which is usually an empty string. Sponsored product cards are in ads[], not here.

Knowledge panel

A panel about an entity (a company, person, place or work). knowledgeGraph returns title, type, kgmid, description, source, website, imageUrl, attributes[] (key, value), profiles[] and peopleAlsoSearchFor[] (name, link), plus entity-specific arrays such as ratings[] for films or webRatings[] for local businesses. It is omitted when no panel appears. People also search for covers the related-entity list.

Discussions and forums

Google’s “What people are saying” or “Trending posts and discussions” module, often linking to Reddit or forum threads. peopleAreSaying[] returns position, title, link and date (Google’s relative text, such as “5 days ago”). Omitted when absent.

Related searches

Query suggestions at the bottom of the page. relatedSearches[] returns query and link (a Google search URL for that query).

Field map

Blocks with no structured field

These blocks are not returned as structured fields:

With include.html, html[] links a copy of each results page as it was captured, at no extra cost.

AI Mode is a separate surface

Google AI Mode is its own conversational search experience, separate from the regular results page. Google describes it as “particularly helpful for queries where further exploration, reasoning, or complex comparisons are needed” (AI features and your website, checked 2026-09-17). The API has a separate endpoint for it, POST /v1/monitor/aimode, which takes a prompt (not query) with country (or gl), location or uule, and hl, and returns text, sources[], citationPills[] and, for some prompts, places[]. It is priced separately ($0.00206 per request on every tier). See AI Mode and the AI Mode API post.

Why two people see different SERPs

The same query can produce different pages depending on:

• Country and language: set the market with country (or gl).
• City: local packs and many organic results change by city. location or uule targets one.
• Device: Google serves a different page on mobile. localResults is returned for desktop only.
• Time: blocks come and go between runs, so a single result is one observation.

When you collect SERPs for analysis, keep the market and request fields fixed per series. Google search parameters covers the targeting fields in more depth.

Request a SERP and list its blocks

curl -X POST https://api.answerline.dev/v1/monitor/google \
  -H "Authorization: Bearer $ANSWERLINE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "query": "coffee roasters denver",
    "country": "US",
    "include": { "aioverview": {} }
  }'

import os
import requests

res = requests.post(
    "https://api.answerline.dev/v1/monitor/google",
    json={
        "query": "coffee roasters denver",
        "country": "US",
        "include": {"aioverview": {}},
    },
    headers={"Authorization": f"Bearer {os.environ['ANSWERLINE_API_KEY']}"},
    timeout=(10, 330),
)
res.raise_for_status()
result = res.json()["result"]

blocks = {
    "ads": len(result.get("ads") or []),
    "aioverview": result.get("aioverview") is not None,
    "organic": len(result.get("organicResults") or []),
    "people_also_ask": len(result.get("peopleAlsoAsk") or []),
    "local_pack": len(result["localResults"]) if "localResults" in result else None,
    "shopping_grid": len(result["shoppingCards"]) if "shoppingCards" in result else None,
    "knowledge_panel": "knowledgeGraph" in result,
    "discussions": len(result["peopleAreSaying"]) if "peopleAreSaying" in result else None,
    "related_searches": len(result.get("relatedSearches") or []),
}
print(blocks)

const res = await fetch("https://api.answerline.dev/v1/monitor/google", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.ANSWERLINE_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    query: "coffee roasters denver",
    country: "US",
    include: { aioverview: {} },
  }),
});
if (!res.ok) throw new Error(`HTTP ${res.status}: ${await res.text()}`);
const { result } = await res.json();

const present = [
  ["ads", (result.ads ?? []).length > 0],
  ["aioverview", result.aioverview != null],
  ["peopleAlsoAsk", (result.peopleAlsoAsk ?? []).length > 0],
  ["localResults", "localResults" in result],
  ["shoppingCards", "shoppingCards" in result],
  ["knowledgeGraph", "knowledgeGraph" in result],
  ["peopleAreSaying", "peopleAreSaying" in result],
].filter(([, on]) => on).map(([name]) => name);
console.log(present);

This call costs $0.00103 base on every tier and +$0.00071 for the AI Overview: $0.00174.

Two things to note in code:

• Test for the key rather than an empty array for localResults, shoppingCards, knowledgeGraph and peopleAreSaying. They are omitted when the block is absent.
• Keep include.aioverview constant across a series. Without it, aioverview is missing, which is not the same as null (requested but not shown).

What each block is useful for

Tracking how these blocks change over time is covered in SERP feature change tracking, and the data model behind the response in structured SERP data. If you are choosing a provider, best SERP APIs compares options.

Glossary

• SERP feature: any block on a results page other than a plain organic listing.
• Rich result: an organic result enhanced with extra information, often from structured data.
• Local pack: the map-backed list of businesses for local-intent queries.
• Knowledge panel: the entity panel built from Google’s Knowledge Graph; kgmid is its identifier.
• AI Overview: a generated answer with linked sources shown on some results pages.

More terms are in the glossary. The full field list is on the Google Search engine page.

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