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March 16, 2026
Product UpdateTraffic IntelligenceSimilarWeb

Traffic Intelligence: SimilarWeb Data Meets AI Ad Agents

Synter now pulls real traffic intelligence from SimilarWeb so your AI agent can analyze competitors, compare domains, and discover keywords — then act on the insights automatically.

The Problem: Flying Blind on Competitor Traffic

Every ad campaign starts with a guess. You pick keywords you think will work. You allocate budget to channels you assume your competitors use. You target audiences based on intuition, not data.

The reality is that most marketers have no idea where their competitors' traffic actually comes from. Is that competitor winning on organic search or paid? What keywords drive their traffic? Which geographies are they strongest in? What's their engagement look like?

Without answers to these questions, you're building campaigns on guesswork. And guesswork burns budget.

The Solution: SimilarWeb + AI Agent

Today we're launching Traffic Intelligence — a new integration that connects Synter's AI agent directly to SimilarWeb's traffic data via their REST API v4.

This isn't another dashboard. Synter pulls real traffic data — volumes, sources, keywords, engagement metrics, geographic breakdowns — and your AI agent uses it to make concrete campaign decisions. It analyzes the data, identifies opportunities, and takes action.

3

Analysis tools

Included

In your plan

Starter+

Available on

Three Powerful Capabilities

Domain Analysis

Analyze any domain with a single prompt. Synter fetches traffic volume, source breakdown (organic, paid, social, referral, direct), top pages, geographic distribution, engagement metrics (bounce rate, pages per visit, visit duration), and similar sites.

The similarweb_analyze_domain script pulls a complete traffic overview from the SimilarWeb API — giving your agent the full picture of how a domain performs.

Competitive Comparison

Compare 2–3 domains side by side. Synter ranks them by total traffic, identifies the traffic leader and growth leader, and highlights channel mix differences between domains.

The similarweb_compare_domains script produces a ranked comparison with traffic share, engagement metrics, and a breakdown of where each competitor is winning or losing.

Keyword Intelligence

Two modes in one tool. Site keywords discovers which organic and paid keywords drive traffic to any domain. Keyword metrics returns search volume, CPC, difficulty score, and trend data for specific keywords you're considering.

The similarweb_keyword_analysis script finds the gaps in your keyword strategy by showing you exactly what's working for competitors.

How It Works

Just ask your agent. Synter has heuristics that auto-trigger the right SimilarWeb tool when you ask about competitor traffic, domains, or keywords. Here are a few example prompts:

> "Analyze hubspot.com — where does their traffic come from?"

> "Compare nike.com vs adidas.com on paid search performance"

> "Find the top 25 organic keywords driving traffic to salesforce.com"

> "What keywords should I bid on to compete with mailchimp.com?"

Behind the scenes, Synter selects the right script, calls the SimilarWeb API, parses the response, and feeds the structured data back to the agent for analysis and action.

ScriptWhat It DoesAvailability
similarweb_analyze_domainTraffic overview, sources, geo, similar sitesIncluded
similarweb_compare_domainsSide-by-side comparison of 2–3 domainsIncluded
similarweb_keyword_analysisSite keywords or keyword metrics lookupIncluded

Real Data, Not Panel Estimates

SimilarWeb API v4

Traffic Intelligence uses the SimilarWeb REST API v4 directly. This is the same data source used by enterprise sales teams, investment analysts, and growth marketers at scale. Synter handles the API subscription — you don't need your own SimilarWeb account.

The difference between Synter and a standalone SimilarWeb dashboard: Synter doesn't just show you the data. Your AI agent reads the data and uses it to recommend bid adjustments, keyword additions, budget shifts, and new audience strategies — or executes those changes directly.

From Insight to Action

This is the key differentiator. Other tools show you competitor data and leave you to figure out what to do. Synter closes the loop from insight to execution.

Here's a real workflow:

  1. Analyze: You ask Synter to analyze a competitor's traffic. The agent finds they're winning on paid search for “project management software.”
  2. Identify gaps: Synter checks your current keyword coverage and finds you have no campaigns targeting that term.
  3. Recommend: The agent suggests a new Search campaign targeting those keywords, with bid recommendations based on the competitor's CPC data.
  4. Execute: With your approval, Synter creates the campaign, sets the budget using competitor CPC as a baseline, and launches it.

No context switching. No exporting CSVs. No manually building campaigns from research. Synter goes from competitor analysis to live campaign in a single conversation.

Getting Started

Traffic Intelligence is available now on Starter plans and above. No SimilarWeb subscription needed — Synter handles the API.

  • Open a Synter chat and ask about any competitor's traffic
  • Synter auto-selects the right SimilarWeb tool
  • Get structured data back with actionable recommendations
  • Let Synter execute the recommendations or do it yourself

Not using Synter yet? Sign up for free and start your free trial to try Traffic Intelligence and every other Synter capability.

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