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Notra starts counting when you install the tracker. To see the months before that, import the history your previous analytics tool kept. Imported days show up on the Web tab next to what Notra tracks now, in the same charts, page lists, sources and audience breakdowns. Open Settings → Tracking → Import history, or Import history on the Web tab while it has no data yet, and pick a source.

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What you can import

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How imports fit with Notra’s own data

  • No day is counted twice. An import stops the day before Notra recorded its first visit for that domain. If Notra already has data, only the days before it are imported.
  • A source is never imported twice for the same day. Importing the same site or the same export again only adds the days that are still missing.
  • Imports appear when they finish. A running import stays hidden, so you never see a half-imported month. Large imports run in the background in small steps, newest days first, so you can close the dialog, keep working and come back. If a source asks Notra to slow down, the import waits and continues where it stopped.
  • Visitors are daily uniques. Like Notra and Plausible, visitors over a range are the sum of each day’s unique visitors.
  • Some sources lack some metrics. Vercel has no sessions or bounces, and Cloudflare Web Analytics has no unique visitors. Rybbit counts only visits per page, source, country, device, browser and OS, and Databuddy only visitors, so a breakdown shows whichever of the two the source has. Cloudflare numbers are sampled estimates. Other missing metrics read as zero for imported days.
  • Filters by page keep imported page views. Sources, campaigns and audience breakdowns can’t be filtered by page for imported days, the same limit Plausible has.

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Import several sites

You can import as many sites as you like, including several into one domain. After Start import, select Import another site to pick the next one while the first keeps running. Charts update and a notice appears when an import finishes, wherever you are in Notra, and while imports run, Importing … sites shows their progress on the Web tab and in Settings → Tracking.
  • One account, one import at a time. Imports through the same connection run in the order you started them, so they share the provider’s rate limit without slowing each other down. A queued import shows Waiting for … to finish and starts on its own right after.
  • Days another source already has. When the new import covers days another source already imported for the same domain or its www alias, Check range shows which days and lets you choose. Plausible and Cloudflare report a host per page, so their imports also cover subdomains, while acme.com and docs.acme.com from two Vercel projects never overlap.
    • Skip those days (preselected): the same site was tracked twice, for example in Plausible and in Vercel. Only the missing days are imported.
    • Add together: two different sites should count as one, for example two Vercel projects for acme.com. Both sources’ numbers are added for those days.
Notra recognises a Plausible export by its content, so uploading the same ZIP again counts as the same source, while a different export of the same domain is another source.

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Plausible export (every plan)

  1. In Plausible, open Site settings → Imports & Exports and choose Export to CSV. Plausible emails you a ZIP file.
  2. In Notra, open Import history → Plausible export and upload the ZIP as it is, without unzipping it.
  3. Check the domain, select Check export and review the date range and page views, then Start import.
Notra reads the imported_*.csv files in the export (up to 200 MB zipped). It skips custom events and exit pages, drops region and city columns, and strips query strings from page paths. The uploaded ZIP is stored encrypted with its own key while the import runs and deleted when it finishes, or within two days if you never start the import.

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Plausible API (Business plan)

  1. In Plausible, open Account settings → API Keys → New API key, choose Stats API and the team that owns the site.
  2. In Notra, choose Plausible API, paste the key and select Connect.
  3. Pick the site, check the domain and select Check range, then Start import.
A Stats API key is read-only. Notra uses at most 400 requests an hour of the key’s 600-per-hour limit and pauses when Plausible asks it to slow down.

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Cloudflare

Create a custom API token with these read-only permissions:
  • Zone → Analytics → Read, for AI crawler hits
  • Zone → Zone → Read, to list your zones
  • Account → Account Analytics → Read, for Web Analytics page views
  • Account → Account Settings → Read, to list your Web Analytics sites
Paste the token in Import history → Cloudflare. Zones import AI crawler hits and Web Analytics sites import page views. Notra asks Cloudflare only for requests whose user agent matches a known AI crawler. It never requests IP addresses or query strings, and it drops vulnerability-scanner paths such as /.env and requests outside your project’s domain. Cloudflare marks bots it has verified, and Notra keeps that flag but also includes unverified hits, which are often spoofed.

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Vercel Web Analytics

  1. Create an access token under Account Settings → Tokens, scoped to the team that owns the project, with an expiration. Vercel tokens can’t be limited to read access, but Notra only uses it to list projects and read Web Analytics, and you can delete the token once the import is done.
  2. Copy the team ID (team_…) from Team Settings → General. Leave it empty for personal projects.
  3. Choose Vercel Web Analytics, paste both, pick the project and start the import.
Only production traffic is imported. Vercel returns the top 100 values per day for each breakdown, so page and referrer lists can add up to less than the daily total. UTM campaigns need Web Analytics Plus.

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Rybbit

  1. In Rybbit, open Settings → Organization → Organization API Keys and create a key restricted to the analytics:read scope. Rybbit offers API keys on the Standard plan and higher.
  2. In Notra, choose Rybbit, paste the key and select Connect. Notra checks that the key can read analytics before saving it.
  3. Pick the site, check the domain and select Check range, then Start import.
Notra reads three days per step: the daily totals plus the top 200 values per day for each breakdown. Rybbit allows 5,000 API requests a day on Standard (25,000 on Pro), shared by every key in your organization. Notra uses at most 4,000 of them, which covers about 16 months of history a day, and continues the next day where it stopped. Only Rybbit Cloud is supported.

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Databuddy

  1. In Databuddy, open Organization settings → API keys, select Create API key and choose the Analytics preset, which only grants read:data. You can limit the key to the websites you want to import.
  2. In Notra, choose Databuddy, paste the key and select Connect.
  3. Pick the website, check the domain and select Check range, then Start import.
Notra reads a week per request: the daily totals plus the top 200 values per day for each breakdown, using at most half of the 120 queries a minute Databuddy allows per key. Databuddy reports the median visit duration, so imported time on site is that median times the day’s visits.

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Delete an import or disconnect

Every import is listed in Import history with its date range, page views and progress. If an import stops unexpectedly, Notra resumes it from the last finished step, and if it can’t, the import shows as failed and you can start it again. Delete import removes its rows right away, also while it is still running. Click a saved connection to start another import with the same account, without pasting the key again. If a key stops working, the connection shows Reconnect needed, and Reconnect replaces the key and keeps the connection. Disconnect deletes the stored key, or choose Disconnect and delete imports to remove the imported data as well. Deleting a project or organization deletes its imports too.

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Privacy

Imports contain only daily totals per page, source, country, device, browser or operating system. Notra never imports IP addresses, user agents of people, query strings, cities or regions, and it aggregates any finer data in memory before storing it. Notra encrypts keys, uses them only to read analytics and deletes them when you disconnect.
Last modified on November 11, 2026