SYSTEM all green source cos.com queue 4,192 pages p99 latency 184ms dataflirt.com · scraper/cos-com
RUN · 31 active pipelines · cos.com live

COS data,
at warehouse scale.

We extract product listings, pricing signals, fabric compositions, and inventory matrices from cos.com. Delivered as clean JSON, CSV, or Parquet to S3, BigQuery, or Snowflake on your cadence.

Products extracted
14.2K /run
Price updates
28.5K /24h
Inventory checks
112K /day
Active pipelines
31
Uptime
99.98%
Data Dictionary

Every field we extract from cos.com

Structured, schema-consistent data across all major object types — delivered clean, typed, and ready to query.

Complete list of extractable fields for Product Listings objects from cos.com. All fields typed and schema-versioned.

product_idstyle_codenamecategorysub_categorydescriptioncolourfit_typefabric_compositioncare_instructionssustainability_labelimage_urlsmodel_statspage_url
product_listings
● 200 OK
"product_id": "1182374001",
"name": "Oversized Tailored Wool Coat",
"category": "Women > Coats & Jackets",
"colour": "Black",
"fit_type": "Oversized",
"fabric_composition": "100% RWS Wool",
"sustainability_label": "Responsible Wool Standard",
"care_instructions": "Dry clean only"
# product_idstyle_codenamecategorysub_categorydescription
1
2
3

Complete list of extractable fields for Pricing & Markdowns objects from cos.com. All fields typed and schema-versioned.

product_idskuregioncurrencycurrent_priceoriginal_pricediscount_pctdiscount_abssale_badgepromotion_textprice_timestamp
pricing_& markdowns
● 200 OK
"product_id": "1182374001",
"sku": "1182374001-001",
"region": "UK",
"currency": "GBP",
"current_price": 250.0,
"original_price": 250.0,
"discount_pct": 0,
"sale_badge": false,
"price_timestamp": "2026-05-12T10:15:00Z"
# product_idskuregioncurrencycurrent_priceoriginal_price
1
2
3

Complete list of extractable fields for Inventory & Sizing objects from cos.com. All fields typed and schema-versioned.

product_idskucoloursizein_stocklow_stock_warningstock_quantitystore_availabilityregionscraped_at
inventory_& sizing
● 200 OK
"product_id": "1182374001",
"sku": "1182374001-001-M",
"colour": "Black",
"size": "M",
"in_stock": true,
"low_stock_warning": true,
"stock_quantity": 3,
"region": "UK",
"scraped_at": "2026-05-12T10:15:22Z"
# product_idskucoloursizein_stocklow_stock_warning
1
2
3

Capabilities

Apparel intelligence — structured and normalised

Our COS scraper handles dynamic inventory matrices, localized pricing, and complex variant structures — parsing fabric composition and care data directly into queryable fields.

Full Catalogue Extraction

Title, description, style codes, categories, and fit details — scraped across all departments and collections.

Variant Matrix Mapping

Parent-child relationships resolved across all size and colour combinations. We map the SKU grid precisely as it exists in the backend.

Fabric & Composition Data

Extract material breakdowns, sustainability certifications (e.g., RWS Wool, Organic Cotton), and precise care instructions.

Localised Pricing & Markdowns

Capture region-specific pricing, original price, markdown percentages, and promotional flags — timestamped per crawl.

Size-Level Inventory Tracking

Monitor stock availability, low-stock warnings, and exact quantity indicators for every size variant.

High-Res Media Extraction

Capture clean URLs for all product gallery images, model shots, and detail crops.

Multi-Region Support

Target cos.com/en_gb, en_us, en_eu, and other regional subdirectories to compare global assortment and pricing.

// engagement pipeline

From product URL to warehouse record

Brief in. Clean data out.

Define Scope
d 0

Provide target regions, categories, or specific style codes. We design the extraction schema together.

Pipeline Build
d 2–4

We configure Scrapy / Playwright crawlers, proxy rotation, and variant resolution logic for cos.com.

Validation & QA
d 4–6

Schema validation, null-rate checks, price-outlier detection, and variant completeness before full launch.

Delivery
ongoing

JSON / CSV / Parquet pushed to your S3 bucket, BigQuery dataset, or Snowflake stage on agreed cadence.

Under the hood

How our COS pipeline handles the hard parts

Modern apparel sites rely heavily on dynamic loading and regional routing. Here's how we stay resilient.

pipeline-monitor · cos.com · live ● active
// fingerprinting
Identity rotation
TLS fingerprintrandomised
User-agentrotated
IP poolresidential
Challenges blocked0
// pagination
Page coverage
48,291 pages queued running
// observability
Pipeline health
99.9%
uptime
142ms
p99 lat
0.3%
null rate
2
alerts
Anti-bot layer
Residential proxy rotation + fingerprint spoofing

Retail sites block datacentre IPs aggressively. Our crawlers use residential ISP proxies with realistic browser fingerprints, randomised request timing, and full cookie session management — preventing IP bans and regional redirects.

JavaScript rendering
Full Playwright execution for SPA content

COS heavily utilises JavaScript for inventory loading and variant switching. We run full Playwright browser sessions to trigger dynamic hydration, capturing stock availability that headless HTTP clients miss entirely.

Variant matrix handling
Resolving complex size-colour SKU grids

Apparel SKUs are multidimensional. We map the parent style code to every child variant, ensuring size-level inventory and colour-specific pricing are accurately linked and normalised.

Change detection
Only re-scrape what's changed

For large catalogues, we maintain a hash index of last-seen values per field. Subsequent runs only push diffs — reducing compute cost, storage bloat, and downstream processing load. You get a clean changelog rather than full re-dumps.

Monitoring & alerting
24/7 pipeline health with anomaly detection

Every run emits structured logs to our observability stack. We alert on null-rate spikes, price outliers, schema drift, and coverage drops — and respond before you notice. SLA uptime is contractual, not aspirational.

Applications

Who uses COS data — and how

Teams across industries use cos.com data to build competitive products and smarter operations.

01
Competitor Pricing & Markdown Analysis

Fashion brands monitor COS's pricing architecture and promotional cadence to optimise their own markdown strategies.

02
Assortment & Trend Tracking

Merchandising teams analyse category depth, colour prevalence, and fit trends across new arrivals.

03
Fabric & Material Intelligence

Supply chain analysts track material composition shifts and sustainability certification adoption across the catalogue.

04
AI Stylist Training Data

ML teams ingest high-res images, descriptions, and fabric data to train visual recommendation engines and auto-tagging models.

05
Inventory & Restock Forecasting

Analysts track size-level stockout rates and restock velocity to estimate demand and production volumes.

06
Sustainability Auditing

Researchers aggregate sustainability labels and material percentages to audit brand claims against ESG targets.

Why DataFlirt

"COS offers a masterclass in minimalist design and premium materials — but tracking their pricing, fabric composition, and stock depth across regions requires dedicated scraping infrastructure."

Most teams underestimate the investment required: reliable COS scraping requires residential proxies, full JavaScript rendering for dynamic inventory, and daily selector maintenance. DataFlirt absorbs that complexity so your engineers can focus on the analysis — not the infrastructure.

Technical Spec

COS scraper — technical capabilities

Everything supported by our cos.com scraper — rendered SPA elements, auth walls, rate-limit evasion and beyond.

JavaScript rendering
Full Playwright sessions — required for inventory matrices and dynamic loading
Supported
CAPTCHA bypass
Automated 2Captcha + CapSolver integration with fallback to manual queue
Supported
Residential proxy rotation
ISP-grade residential IPs — rotated per request to prevent regional blocking
Supported
Multi-region targeting
Support for UK, US, EU, and other regional subdirectories
Supported
Variant/variation mapping
Parent to child SKU relationships with all size/colour combinations
Supported
High-res image URLs
Extraction of full-resolution gallery assets
Supported
Change detection (diffs)
Hash-based diff: only emit records with changed fields since last run
Supported
Webhook delivery
HTTP POST per record or batch — useful for real-time inventory alerts
Supported
User account order history
Gated data requires account credentials and violates privacy policies
Partial
Loyalty club point balances
Authenticated user data is strictly excluded from our extraction scope
Partial
Infrastructure

Infrastructure powering the COS pipeline

Open-source tooling on proven cloud infra — no vendor lock-in, full observability.

ScrapyPlaywrightPython 3.12RedisPostgreSQLApache AirflowAWS LambdaS3CloudWatch2CaptchaCapSolverResidential ProxiesDockerKubernetesGrafanaPrometheusSnowflakeBigQuery
Scrapy + Playwright Stack

Scrapy handles crawl orchestration, deduplication, and retry logic. Playwright handles JavaScript rendering, cookie sessions, and interaction flows. Combined via scrapy-playwright middleware.

Residential Proxy Infrastructure

We maintain pools of residential ISP proxies across target regions. Rotation happens per-request with sticky sessions where required. IP score monitoring prevents blacklisted pool contamination.

Cloud-Native Orchestration

Pipelines run on AWS Lambda (burst) and ECS (sustained). Airflow handles scheduling, dependency management, and SLA alerting. All state stored in managed Postgres.

Output & Delivery

Your data, your destination

Data delivered to where your team already works — no new tooling required.

JSON
Newline-delimited or nested — schema versioned per run
CSV
Flat file with typed columns — Excel/Sheets compatible
Parquet
Columnar format for BigQuery, Snowflake, Athena
S3
Direct bucket delivery — compatible with any data lake
Webhook
HTTP POST per record for real-time downstream processing
BigQuery
Streamed directly into your dataset with schema auto-detect
Snowflake
Stage + COPY INTO workflow — incremental or full-replace
Postgres
Upsert into your existing schema with conflict resolution
// faq

Common questions.

About cos.com scraping, legality, and pipeline operations.

Ask us directly →
Is scraping COS legal?

Scraping publicly available information from cos.com is generally permissible. DataFlirt targets only public, non-authenticated product, pricing, and inventory data. We do not extract personal data or circumvent authentication walls.

How do you handle COS's anti-bot systems?

We use residential ISP proxies, full Playwright browser sessions with realistic fingerprints, and request timing modelled on human behaviour. Our selectors have multi-layer fallback chains so DOM changes don't break the pipeline.

Which regions do you support?

We support all regional subdirectories of cos.com, including UK, US, EU, and Asia-Pacific markets. We handle the necessary geolocated proxies to prevent unwanted regional redirects.

Can you track size-level inventory?

Yes. We map the parent product to every child size/colour variant, capturing specific in-stock status and low-stock warnings for each combination.

How fresh is the data?

Full catalogue refreshes typically run at a daily cadence. For specific high-priority categories or styles, we can configure hourly pipelines to track rapid inventory depletion or flash sales.

What is the minimum viable engagement?

Our smallest packages start at defined category tracking with weekly delivery. For full global catalogue monitoring, we price based on volume, region count, and delivery frequency.

Can you extract fabric composition details?

Yes. We parse the material breakdown into structured percentages and capture distinct sustainability certifications associated with the garment.

$ dataflirt scope --new-project --source=cos.com ready

Tell us what
to extract.
We do the rest.

20-minute scoping call. Pilot dataset within the week. Production within two. Whether you need a one-off catalogue dump or continuous inventory monitoring across regions — we scope, build, and operate the pipeline. Tell us what you need.

hello@dataflirt.com · Bengaluru · IST · typical reply < 4h
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