Website Traffic Checker (Bulk Similarweb Data)

Check the traffic of up to 5,000 websites in one run: monthly visits, ranks, bounce rate, traffic sources, top countries and AI chatbot referrals from Similarweb's public estimates, plus each domain's email and website set-up, one row per domain. No login, no API key.

• Size up prospects: sort a lead list by monthly visits before your sales team spends time on it.
• Benchmark competitors: compare visits, channel mix and top countries across a whole market in one table.
• Spot AI search traffic: see which sites already get visits from ChatGPT, Gemini, Claude and Perplexity, how many visits each chatbot sends, and how each one's share moved over 3 months.
• Screen companies: filter an investment or partner list by web presence, growth and category rank.
• Enrich a CRM: add traffic, email provider and tech stack columns to every account at once.

Quick start

Paste this into the JSON tab of the input and click Start:

{"domains": ["airtable.com", "notion.so", "canva.com"]}

You get 3 rows, usually in under 30 seconds. Bare domains, full URLs and email addresses all work: each becomes its main domain and duplicates are merged.

What data can I get?

Group	Fields
Traffic	monthlyVisits, monthlyVisitsChange, monthlyVisitsHistory (last 3 months), trafficMonth
Ranks	globalRank, countryRank + countryRankCountry, category, categoryRank
Engagement	bounceRate, pagesPerVisit, avgVisitDurationSeconds
Channels	trafficSources (direct, organic and paid search, referrals, social, paid social, email, display, affiliates, AI chatbots), topTrafficSource, trafficSourceVisits (estimated visits per channel, same keys, e.g. {"direct": 344109372, "organicSearch": 157118626})
Audience	topCountries (top 5 with share), topKeywords (top 5 with search volume and CPC)
AI chatbots	aiChatbotVisits, aiChatbotShare, topAiChatbots, aiChatbotShares (each chatbot's share of the AI chatbot referrals in percent, e.g. {"chatgpt": 61.82, "claude": 12.86, "gemini": 9.45}; Similarweb gives the biggest few only, usually 3, so they need not add up to 100), aiChatbotVisitsByChatbot (estimated visits each chatbot sent, e.g. {"chatgpt": 7422431, "claude": 1544038}), aiChatbotSharesHistory (the per-chatbot shares for each of the last 3 months, oldest first)
Email set-up	emailProvider, emailSecurityGateway, mxRecords, hasSpf, hasDmarc, dmarcPolicy, hasBimi, hasMtaSts
Website	httpStatus, finalUrl, https, cdn, hosting, dnsProvider, cms, ecommerce, analytics, marketing, chatWidgets, payments
SSL and domain	sslIssuer, sslDaysToExpiry, registrar, registeredAt, expiresAt (never owner contact details)
Flags	trafficAvailable, dataFromGoogleAnalytics, trafficError, checkErrors
Competitor watch (optional)	previousMonth, visitsChange, visitsChangePct, globalRankChange, aiShareChange, chatbotShareChanges, changed, watchStatus: only when compareWithPrevious is on

One real row (run on 2026-10-14, month 2026-09, shortened):

{
  "domain": "airtable.com",
  "trafficAvailable": true,
  "trafficMonth": "2026-09",
  "monthlyVisits": 25813226,
  "monthlyVisitsChange": -0.009,
  "monthlyVisitsHistory": [{"month": "2026-07", "visits": 27389611}, {"month": "2026-08", "visits": 26047033}, {"month": "2026-09", "visits": 25813226}],
  "globalRank": 1485,
  "countryRank": 679,
  "countryRankCountry": "US",
  "categoryRank": 23,
  "bounceRate": 0.3458,
  "pagesPerVisit": 7.68,
  "avgVisitDurationSeconds": 575,
  "topTrafficSource": "Direct",
  "trafficSources": {"direct": 0.7579, "organicSearch": 0.045, "paidSearch": 0.0046, "referrals": 0.0746, "socialOrganic": 0.049, "socialPaid": 0.0026, "email": 0.0559, "displayAds": 0.0037, "affiliates": 0.0009, "aiChatbots": 0.0059},
  "trafficSourceVisits": {"direct": 19563111, "organicSearch": 1161782, "paidSearch": 117957, "referrals": 1925377, "socialOrganic": 1265469, "socialPaid": 66386, "email": 1443130, "displayAds": 95414, "affiliates": 22507, "aiChatbots": 152094},
  "topCountries": [{"country": "US", "share": 0.5238}, {"country": "GB", "share": 0.0504}],
  "topKeywords": [{"keyword": "airtable", "searchVolume": 493540, "estimatedValue": 325650, "cpcUsd": 5.16}],
  "topAiChatbots": ["claude.ai", "chatgpt.com", "gemini.google.com", "perplexity.ai"],
  "aiChatbotVisits": 137217,
  "aiChatbotShares": {"claude": 39.88, "chatgpt": 36.98, "gemini": 4.73},
  "aiChatbotVisitsByChatbot": {"claude": 54722, "chatgpt": 50743, "gemini": 6490},
  "aiChatbotSharesHistory": [{"month": "2026-07", "shares": {"claude": 36.38, "chatgpt": 58.96, "gemini": 3.72}}, {"month": "2026-08", "shares": {"claude": 24.2, "chatgpt": 59.26, "gemini": 3.33}}, {"month": "2026-09", "shares": {"claude": 39.88, "chatgpt": 36.98, "gemini": 4.73}}],
  "trafficDataBy": "Similarweb estimates",
  "emailProvider": "Google Workspace",
  "hasSpf": true,
  "hasDmarc": true,
  "dmarcPolicy": "reject",
  "dnsProvider": "AWS Route 53",
  "cdn": "Amazon CloudFront",
  "hosting": "Vercel",
  "sslDaysToExpiry": 104,
  "registrar": "MarkMonitor Inc."
}

The dataset has six views (Overview, Channels and audience, AI chatbots, Email set-up, Website and tech stack, Changes) and exports to JSON, CSV, Excel or HTML. The run's SUMMARY record lists anything that could not be read, with the reason.

How much does it cost?

You pay per domain returned. There is no charge for Apify platform usage on top.

Row	Free and Starter	Scale	Business
Domain with a traffic estimate	$0.70 per 1,000	$0.525 per 1,000	$0.385 per 1,000
Domain without a traffic estimate (website and email columns only)	$0.35 per 1,000	$0.2625 per 1,000	$0.1925 per 1,000

Plus $0.00005 per run start. Apify's free $5 monthly credit covers about 7,100 domains with traffic estimates. Free-plan runs stop at 100 domains each; any paid Apify plan removes the cap.

What's free: invalid inputs, duplicates, domains skipped by onlyNew, unchanged domains left out by onlyChanged, and domains not reached before the run's time limit. To cap a run's spend, set Maximum cost per run in the run options.

Limits, stated up front

• Traffic numbers are Similarweb's estimates, the figures its free browser extension shows without an account. They are modelled, not measured, unless dataFromGoogleAnalytics is true. Treat them as a guide to size and trend, especially for sites under about 50,000 visits a month, and credit "Similarweb" if you publish them.
• Estimates cover the latest month Similarweb has published plus the 2 months before it. Older months are not available.
• Small or new sites often have no estimate: trafficAvailable is false and the row is charged at the lower domain-basic price.
• If Similarweb refuses a request on every retry, the row still ships with the website and email columns, trafficAvailable: null and the reason in trafficError, at the lower price. With website checks off, such a domain is skipped and not charged.
• Subdomains are looked up as their main domain (blog.example.com becomes example.com), using the full Public Suffix List.
• The website checks fetch each homepage once and respect its robots.txt. Sites behind bot protection can show no tech stack; checkErrors says why.
• About 1 to 2 seconds per domain: 1,000 domains take roughly 5 minutes. If the time limit is reached, the run stops cleanly, keeps what it found and lists the rest in SUMMARY.

Only new since last run, and schedules

Similarweb publishes one new month at a time. Turn on onlyNew and schedule the Actor monthly: each run skips domains already delivered for the current month, and skipped domains cost nothing. The memory is shared by every run of this Actor on your account. Set up a schedule under Schedules in Apify Console.

Competitor watch (schedule it weekly)

Turn on compareWithPrevious and the Actor remembers each domain's visits, global rank and AI chatbot shares, then tells you what moved since the last run of the same list. Each row gains previousMonth, visitsChange, visitsChangePct, globalRankChange (positive = the site climbed), aiShareChange (percentage points), chatbotShareChanges (points per chatbot, e.g. {"chatgpt": -3.2, "claude": 2.9}) and changed. The Changes dataset view shows just these columns.

{
  "domains": ["hubspot.com", "salesforce.com", "pipedrive.com", "attio.com"],
  "compareWithPrevious": true,
  "watchName": "crm-competitors",
  "onlyChanged": true
}

• First run: each domain is saved as the baseline and its change columns are empty. With onlyChanged on, that first run returns nothing and costs nothing; leave it off once if you want the starting numbers too.
• changed is true when Similarweb has published a newer month for the domain, or when, within the same month, visits moved by at least minVisitsChangePct (default 10%) or the AI chatbot share, or one chatbot's share, moved by at least minAiShareChangePts (default 1 point).
• onlyChanged returns and charges only rows where changed is true. Unchanged domains are read and remembered but not returned and not charged.
• Expect quiet weeks. Similarweb publishes one month at a time, so a weekly schedule mostly reports "no change" until the new month lands, then every domain shows the month-on-month move. With onlyChanged on, those quiet weeks cost nothing.
• Several lists on one account: give each its own watchName. The memory lives in a key-value store in your own Apify account, and a failed lookup never overwrites it.

To run it weekly: save the input as a task, open Schedules in Apify Console, create a schedule (for example every Monday at 08:00) and add the task. To get the changes in Slack or Google Sheets, add an integration to the task, or start from this free n8n template: Track AI chatbot referral traffic for competitor sites.

Integrations: API, n8n, Make and AI agents

API. Run it and get the rows back in one call:

curl -X POST "https://api.apify.com/v2/acts/locaihost~website-traffic/run-sync-get-dataset-items?token=YOUR_APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"domains": ["airtable.com", "notion.so"]}'

Apify's API clients for Python and JavaScript work the same way.

n8n, Make, Zapier, Google Sheets, Slack, webhooks. Apify's built-in integrations send each run's dataset wherever you need it.

AI agents (MCP). Add this Actor to Claude, Cursor or any MCP client with https://mcp.apify.com/?tools=locaihost/website-traffic, then ask something like "Which of these 20 competitors grew traffic last month, and where do their visitors come from?"

FAQ

How much does it cost to check website traffic?

$0.70 per 1,000 domains with a traffic estimate on the Free and Starter plans, less on Scale and Business, and half that for domains without an estimate. Apify's free $5 monthly credit covers about 7,100 domains.

Can I use it through the API or from Python?

Yes. Use the run-sync-get-dataset-items call above, or Apify's Python and JavaScript clients. Every run's data is also available as JSON, CSV or Excel from its dataset.

Can I use it from an AI agent?

Yes. Through the Apify MCP server (https://mcp.apify.com/?tools=locaihost/website-traffic) any MCP client can call it with a list of domains and read the rows back.

Is it legal to check website traffic this way?

The Actor reads publicly available data: Similarweb's public estimates, public DNS records, public web pages and public domain registries. It never logs in and never collects personal contact details (email addresses typed as input are reduced to their domain, and DMARC report addresses are masked). You are responsible for how you use the results, including Similarweb's terms and any data-protection and marketing rules that apply to you.

How many visits does ChatGPT (or Claude, Gemini, Perplexity) send to a site?

aiChatbotVisitsByChatbot gives the estimate per chatbot for the latest month, for example {"chatgpt": 7422431, "claude": 1544038, "gemini": 1134616} for github.com in September 2026. It is Similarweb's AI chatbot visit count (aiChatbotVisits) multiplied by each chatbot's share. aiChatbotSharesHistory shows how those shares moved over the last 3 months, so you can see whether Claude or Gemini is gaining on ChatGPT for a site.

How many visits come from Google search, paid ads or social?

trafficSourceVisits turns the channel shares into visit counts: monthly visits multiplied by each channel's share. The channels add up to monthlyVisits, give or take rounding. trafficSourceVisits.aiChatbots can differ from aiChatbotVisits, most on smaller sites, because Similarweb counts AI chatbot visits separately from its channel split.

Why are some fields empty?

Small and new sites often have no Similarweb estimate (trafficAvailable: false), and some sites block the homepage check (checkErrors says why). Keyword and country lists only exist where Similarweb publishes them.

More from locaihost data

• Tech Stack & Domain Lookup: the email, DNS and tech stack checks on their own, for any list of domains.
• Company Enrichment by Domain: company name, description, logo, socials and role contact addresses from each site.
• Google Maps Leads Scraper: find local businesses, then check their traffic here.
• SEO Site Audit: page-level SEO checks for the sites that matter.

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