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The price changed. The listing moved. The violation went live. You knew first.

Custom web monitoring for markets where off-the-shelf tools fall short. We build the watching infrastructure your business actually needs, and we run it for you.

We respond in 12 hours on average

Trusted by 300 public and private organizations.

Accor
Bridgestone
Corsica Ferries
Veolia
MAIF
L'Oréal
Ville de Paris
La Poste
Nocibé

Stratalis monitoring

99.7%
uptime over 12 months
< 2,500 EUR/yr
real project cost
15 years
of scraping powering every monitor

What We Monitor

Problem solved

You need to track pricing across sources where structure, access, or volume makes standard tools useless.

Advantages

Structured price feeds from any source, however complex the pricing model.

In practice

Ferry fares that vary by route, date, vehicle, and cabin. Insurance premiums quoted dynamically behind logins. Grocery shelf prices across hundreds of regional drives. If the pricing model is complex, the monitoring needs to match. We build price collectors that understand your market’s data shape and deliver clean, comparable output.

Problem solved

Tracking competitor moves across dozens of sites is manual, incomplete, and always behind.

Advantages

Structured alerts when a competitor changes anything that matters to you.

In practice

We monitor product launches, messaging changes, job postings, stock levels, and pricing across your competitive landscape. Changes trigger structured events so your team responds in hours, not days. Works on sites with heavy anti-bot protection, including platforms that block every off-the-shelf monitoring tool.

Problem solved

You need to watch online platforms for regulatory violations, illegal listings, or policy breaches at scale.

Advantages

Continuous, automated surveillance of platforms that weren’t built to be monitored.

In practice

Public bodies and regulators use our monitoring to track short-term rental platforms for unlicensed listings, marketplaces for counterfeit goods, and social platforms for policy violations. We handle the technical difficulty of watching platforms that actively resist automated access.

Problem solved

Mentions of your brand, products, or executives appear across sites and forums you can’t watch manually.

Advantages

Catch negative mentions, fake reviews, and unauthorized resellers before they cause damage.

In practice

We monitor review sites, forums, marketplaces, and social platforms for brand mentions, product reviews, and unauthorized distribution. Data arrives structured and classified, so your team acts on signal, not noise.

Problem solved

Business opportunities appear in tenders, listings, or publications across fragmented sources with no unified feed.

Advantages

A single, structured feed from dozens of scattered sources you’d never check manually.

In practice

Government tenders, property listings, patent filings, regulatory publications. When opportunities are spread across sites with no API and no RSS, we build the feed. Relevant entries reach your team filtered and structured, on your schedule.

Problem solved

The data you need to watch sits behind authentication walls that block conventional monitoring tools.

Advantages

Monitors authenticated portals, intranets, and member-only platforms reliably.

In practice

Some of the most valuable monitoring targets require login. Supplier portals, professional databases, member-only marketplaces. We build monitoring agents that maintain authenticated sessions and extract data from behind login walls without tripping security systems.

How We Deliver

Managed Monitoring

Fully managed in-house. Source changes and interruptions are transparent to you.

Structured Alerts

Changes trigger alerts via email, webhook, or messaging platform, with structured data attached.

Hosted Dashboard

A hosted interface where your team browses, filters, and exports monitoring results.

Scheduled File Delivery

Structured files delivered on a schedule you define. CSV, JSON, or whatever fits your workflow.

Database & API Access

Data lands in a hosted database, queryable via a documented API endpoint.

Push to Your Systems

Monitoring data pushed to your own API, data warehouse, or BI tool on your schedule.

Why Stratalis for monitoring

Built on 15 years of web scraping

Monitoring is web scraping running continuously. Every anti-bot system, layout change, and access restriction we’ve solved since 2010 feeds directly into the reliability of your monitoring pipeline. We don’t bolt monitoring onto a SaaS platform. We engineer it from the scraping layer up.

Made for the problems tools can’t solve

If your monitoring need fits a SaaS tool, use the SaaS tool. You come to us when the market is niche, the data is complex, the sites are hostile, or the use case doesn’t fit any product category. That’s where we operate.

Cost-effective at any scale

Our monitoring projects typically cost a fraction of what clients expect. A food brand monitors hundreds of grocery drives for under 2,500 EUR per year. A ferry operator tracks 12 competitors across 200+ routes daily. We optimize for the lowest viable cost per data point.

You talk to the engineers

No account manager between you and the people running your monitors. When a source changes or a new target needs adding, you talk directly to the engineer who built it. Changes happen in hours, not ticket queues.

Full data chain under one roof

Monitoring produces data. Data needs storage, transformation, alerts, and sometimes a front end. We cover the full chain, from collection to dashboard, so you work with one team instead of stitching vendors together.

"Clean data, ready to use upon delivery, and a provider that adapts as our needs evolve. Stratalis is reliable, responsive and competitive."
Pauline Mangeney
Pauline Mangeney
Key Account Manager at Mousline

Watching something the hard way? Let’s fix that.

Tell us what you need monitored. We’ll scope it and get back to you within one business day.

Get a Quote

Who It's For

Track competitor pricing changes and stock availability in real time. Detect new product launches and catalogue updates across retail platforms. Alert on promotional shifts and marketplace policy changes.
Monitor regulatory portals for new compliance requirements and enforcement actions. Track competitor product launches, rate changes, and fee structure updates. Detect adverse media mentions and sanctions list changes for risk screening.
Track vehicle pricing trends and inventory levels across dealer networks in real time. Monitor recall announcements, regulatory changes, and safety bulletins from authority sites. Detect competitor model launches and promotional campaigns across automotive portals.
Track property price movements and new listing activity across key markets. Monitor planning permission decisions, zoning changes, and building regulation updates. Alert on new construction tenders and contract award announcements.
Track rate parity and pricing fluctuations across OTAs and direct booking channels. Monitor competitor property launches, seasonal promotions, and loyalty programme changes. Detect review sentiment shifts and emerging destination trends in real time.
Track brand mentions, sentiment shifts, and share-of-voice across media channels. Monitor competitor ad spend patterns, campaign launches, and creative rotations. Detect trending topics and emerging narratives relevant to client brands.
Monitor drug approval timelines, label changes, and safety alerts from regulatory agencies. Track competitor pipeline updates, clinical trial milestones, and patent expiration dates. Detect adverse event reports and pharmacovigilance signals from public databases.
Track competitor product releases, feature updates, and pricing changes across technology markets. Monitor API deprecations, platform policy shifts, and ecosystem partner announcements. Detect emerging technology trends and open-source project momentum signals.
Track raw material price fluctuations and supplier lead-time changes across commodity markets. Monitor logistics disruptions, port congestion, and carrier capacity shifts in real time. Detect regulatory changes affecting import duties, trade restrictions, and compliance requirements.
Monitor government procurement portals for new tenders and contract amendments. Track legislative changes, regulatory consultations, and policy announcements across jurisdictions. Detect grant deadline changes and funding programme updates from public sector agencies.
Monitor court filings, case progress, and judgment publications across relevant jurisdictions. Track regulatory enforcement actions, disciplinary proceedings, and compliance guidance updates. Detect changes in patent status, trademark oppositions, and IP portfolio activity.
Monitor market indicators, news feeds, and industry reports for emerging trends. Track competitor announcements and strategic shifts across web properties. Alert on data source changes that affect research pipeline accuracy.
Monitor regulatory portals for new compliance requirements and enforcement updates. Track interest rate changes, fee structures, and competitor product launches. Detect sanctions list updates and adverse media mentions for risk screening.
Monitor competitor messaging changes, new campaign launches, and positioning shifts. Track review sites and social channels for brand mention sentiment trends. Alert on market entry signals like new product announcements and partnership deals.
Monitor competitor hiring activity, headcount changes, and new role postings. Track salary benchmark shifts and benefits trend updates across job platforms. Alert on talent market changes like layoff announcements and office openings.
Monitor regulatory portals for policy changes, new legislation, and enforcement actions. Track court docket updates and case status changes across jurisdictions. Alert on compliance deadline shifts and regulatory consultation periods.
Monitor supplier portals for pricing updates, stock changes, and delivery delays. Track logistics platform status and carrier service disruptions in real time. Alert on quality certification expirations and regulatory standard updates.
Monitor competitor release notes, changelog updates, and feature announcements. Track app store rating trends and user sentiment shifts across platforms. Alert on market positioning changes like new entrants and pivots.
Monitor third-party service uptime dashboards and incident pages for outage alerts. Track vendor API changelog updates and deprecation announcements. Alert on platform policy changes and breaking updates that affect integrations.

Our Tech Stack

Web Scraping

Proprietary and open tooling for reliable extraction at any scale

Espion JS Injection WebExtension

Data Engineering

Clean, normalize, and route data into the systems that need it

Python SQL ClickHouse NiFi Superset

AI

LLM-powered classification, anomaly detection, and content analysis

Claude OpenAI Gemini

Use Cases

Monitor source websites for content updates that affect RAG knowledge freshness. Track data drift indicators across training data sources. Alert on schema changes and source availability issues that impact AI pipeline inputs.
Monitor data source availability and detect structural changes that break collection pipelines. Track new record additions and updates across target web databases. Alert on access policy changes and rate limit shifts on collected sources.
Monitor competitor websites for pricing changes, feature launches, and messaging shifts. Track press releases, partnership announcements, and strategic moves in real time. Alert on market positioning changes and new entrant signals across the competitive landscape.
Monitor source system availability during phased extraction and migration windows. Track data completeness metrics across migration batches in real time. Alert on schema changes in source platforms that affect extraction mapping rules.
Monitor target company websites for hiring signals, funding announcements, and expansion indicators. Track job posting patterns that reveal technology adoption and budget allocation. Alert on buying intent signals like RFP publications and vendor review activity.
Monitor competitor pricing pages for changes at configurable check intervals. Track promotional campaign launches, flash sales, and seasonal pricing shifts. Alert on significant price drops, stock-outs, and competitive undercuts in near-real time.
Monitor review platforms for new ratings, sentiment shifts, and review volume changes. Track social media channels and forums for brand mention spikes and crisis signals. Alert on negative review clusters and reputation score drops in real time.
Monitor API changelog pages and developer portals for breaking changes and deprecations. Track vendor platform status pages for uptime and incident notifications. Alert on rate limit policy updates and authentication requirement changes.
Monitor SaaS platform dashboards for metric changes and threshold breaches. Track cloud service feature rollouts and UI changes that affect automation scripts. Alert on account status changes, billing updates, and access permission shifts.
Monitor target web portals for UI changes that break existing automation workflows. Track form field updates, authentication changes, and CAPTCHA implementations. Alert on process flow modifications and new validation requirements on automated pages.

FAQ

You should absolutely use one, if it matches your use case well. That said, there are areas where off-the-shelf SaaS struggles and a custom solution built by web scraping experts works best: insurance pricing, B2B and industrial offerings, online platform compliance, underserved geographies, buyer-oriented B2B price monitoring, and similar niches.

Custom usually wins on features, but sometimes custom is cheaper too. Think very narrow use cases where established players charge thousands per seat for a much broader offering than you need.

We collect data from anything connected to the internet. Public websites, login-protected portals (this comes with contractual and legal considerations that we address upfront), mobile apps, SPAs with heavy JavaScript rendering, and platforms behind aggressive anti-bot systems.

Monitoring projects work on a scale from on-demand with sub-60-second response delivery to once every quarter. Daily and weekly monitoring are very common in pricing use cases. We’ll recommend the right frequency based on how fast your market moves.

Our monitoring often catches structural changes automatically, but not always. What we do guarantee is fast response: our engineering team is always ready to pick up maintenance tasks with very little notice. Layout changes are a normal part of running scrapers. We handle them fast and we handle them often.

Fixed monthly fee based on number of sources, data volume, and delivery frequency. No per-query billing, no surprise overages. You know the number before we start.

It’s a common way to work and it has upsides: data structure is well known in advance, with no dependence on AI or heuristics. We also run projects that monitor the open internet and projects based on continuous manual selection of websites, at no per-website extra cost.

Ready to stop missing what matters?

Get a fixed-price quote for your monitoring project. No commitment, no hourly billing. A clear number.

  • Free, no-obligation quote
  • Response within 24 hours
  • We never share your data

Next: tell us about your project (2 min). We'll reply with a proposal, and a quick call to clarify if needed.