Is the free plan time-limited?

No. The Free plan can be used indefinitely within its site and page limits.

Can I change my plan later?

Yes. When the number of monitored sites or your history needs grow, you can move to a higher plan.

Which plan should I start with?

Free for a single site, Pro for small teams working regularly, and Agency for teams managing a client portfolio.

I need a custom scope.

Share the number of sites to monitor and your critical flow on the contact page; we will define the scope together.

How We Will Measure Our Own Pilot Across 23 Real URLs

Crawlens is a change-monitoring and evidence archive. Publishing an unverified success rate would contradict the product’s premise. The measurement tooling is ready, but we will not present a result until a dated report artifact exists.

This is a preregistered measurement plan, not a results report.

Pilot set

server/scripts/seed_pilot.py groups 23 public URLs into four categories:

Noisy pages stress false-alert handling with rotating headlines, ads, and timestamps.
Stable documentation makes unnecessary alerts easy to identify.
Pricing pages represent meaningful content changes an agency may care about.
Status pages exercise availability changes and the notification path.

These are not customer sites. Public pages can measure engine behaviour; weekly agency usage, retention, and willingness to pay still require external pilots.

Thresholds fixed before results

Metric	Target	Current status
Crawl success rate	≥ 97%	Awaiting results
Controlled-change catch	≥ 95%	Awaiting results
Human-reviewed false-alert rate	≤ 20%	Awaiting results
Critical notification delivery	≥ 99%	Awaiting results

We publish thresholds in advance so they cannot be adjusted after seeing the outcome.

Reproducing the report

Once pilot data exists, the same window is measured with:

python server/scripts/pilot_report.py --days 30

The script reports no data instead of inventing a percentage. It also separates the three market measures that need real agencies: weekly usage, willingness to pay, and 30-day post-pilot retention.

A result will appear here only after its date range, denominator, and script output have been preserved. Until then, every percentage on this page is a target—not an outcome.

Review Crawlens plans and limits or contact us to discuss a pilot on your own sites.

Results

Not yet run — this section fills in when results are published.