SYSTEM all green source tredz.co.uk queue 8,412 pages p99 latency 214ms dataflirt.com · scraper/tredz-co.uk
RUN | 14 active pipelines | tredz.co.uk live

Tredz data,
at warehouse scale.

We extract bike geometry, groupset specifications, variant pricing, and stock depths from Tredz. Delivered as clean JSON, CSV, or Parquet to S3, BigQuery, or Snowflake on your cadence.

Products extracted
54K /run
Stock updates
182K /day
Review records
41K /run
Active pipelines
14
Uptime
99.98%
Data Dictionary

Every field we extract from tredz.co.uk

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 tredz.co.uk. All fields typed and schema-versioned.

skutitlebrandcategorypricerrpdiscount_pctin_stockstock_statusratingreview_countimage_urls
product_listings
● 200 OK
"sku": "248912",
"title": "Specialized Tarmac SL7 Comp 2024 - Road Bike",
"brand": "Specialized",
"price": 4500.0,
"rrp": 5000.0,
"in_stock": true,
"rating": 4.8,
"review_count": 14
# skutitlebrandcategorypricerrp
1
2
3

Complete list of extractable fields for Technical Specifications objects from tredz.co.uk. All fields typed and schema-versioned.

skuframe_materialgroupsetbrakesforkwheel_sizeweightgeometry_urlmodel_yearsuspension_type
technical_specifications
● 200 OK
"sku": "248912",
"frame_material": "Carbon",
"groupset": "Shimano 105 Di2 12-Speed",
"brakes": "Hydraulic Disc",
"model_year": 2024,
"wheel_size": "700c",
"suspension_type": "Rigid"
# skuframe_materialgroupsetbrakesforkwheel_size
1
2
3

Complete list of extractable fields for Variants & Stock objects from tredz.co.uk. All fields typed and schema-versioned.

parent_skuvariant_skusizecolourpricein_stockstock_messagedispatch_timebarcode
variants_& stock
● 200 OK
"parent_sku": "248912",
"variant_sku": "248912-56-RED",
"size": "56cm",
"colour": "Gloss Red",
"price": 4500.0,
"in_stock": true,
"stock_message": "In stock - usually dispatched within 24 hours",
"dispatch_time": "24h"
# parent_skuvariant_skusizecolourpricein_stock
1
2
3

Complete list of extractable fields for Reviews objects from tredz.co.uk. All fields typed and schema-versioned.

review_idskureviewer_namestar_ratingreview_titlereview_bodyreview_dateverified_buyerhelpful_votes
reviews
● 200 OK
"review_id": "REV-99214",
"sku": "248912",
"star_rating": 5,
"review_title": "Fast and responsive",
"review_date": "2023-11-14",
"verified_buyer": true,
"helpful_votes": 3
# review_idskureviewer_namestar_ratingreview_titlereview_body
1
2
3

Complete list of extractable fields for Categories & Navigation objects from tredz.co.uk. All fields typed and schema-versioned.

category_idcategory_nameparent_categorybreadcrumburlproduct_counttop_brandsmeta_descriptionscraped_at
categories_& navigation
● 200 OK
"category_id": "cat-road-bikes",
"category_name": "Road Bikes",
"parent_category": "Bikes",
"product_count": 1240,
"url": "https://www.tredz.co.uk/road-bikes",
"top_brands": "['Specialized', 'Giant', 'Trek', 'Cannondale']",
"scraped_at": "2024-05-12T08:00:00Z"
# category_idcategory_nameparent_categorybreadcrumburlproduct_count
1
2
3

Capabilities

Complete cycling catalogue extraction

Our Tredz scraper handles complex variant structures, dynamic stock levels, and detailed technical specifications with JavaScript rendering and anti-bot circumvention built in.

Technical Specification Extraction

Extract groupsets, frame materials, brake types, and model years. We map unstructured specification tables into clean key-value pairs.

Geometry Data Capture

Parse geometry tables for reach, stack, top tube length, and head angles across all frame sizes.

Variant & Stock Mapping

Capture availability and pricing for every size and colour combination. We monitor stock status messages and dispatch estimates.

Price & Discount Tracking

Monitor RRP, current price, and discount percentages. Track clearance items and seasonal promotional pricing.

Review Mining

Extract full review text, star ratings, and verified buyer flags across all paginated review sections.

Brand Catalogue Monitoring

Track total SKU counts, new additions, and discontinued lines for specific brands like Specialized, Giant, or Shimano.

Search Result Scraping

Track organic ranking positions for specific components or bike types across Tredz search results.

Clearance & Outlet Monitoring

Monitor the Tredz clearance section for deep discounts and end-of-line stock liquidations.

Scheduled Deliveries

Run daily stock sweeps or weekly catalogue refreshes with change-detection diffing to minimise payload size.

// engagement pipeline

From SKU list to warehouse record

Brief in. Clean data out.

Define Scope
d 0

Provide category URLs, brand names, or specific SKUs. We design the extraction schema together.

Pipeline Build
d 2–4

We configure Scrapy and Playwright crawlers, proxy rotation, and session management for tredz.co.uk.

Validation & QA
d 4–6

Schema validation, null-rate checks, and variant mapping verification before full launch.

Delivery
ongoing

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

Under the hood

How our Tredz pipeline handles the hard parts

Cycling retailers use complex nested variant structures and dynamic stock loading. Here is how we ensure reliable extraction.

pipeline-monitor · tredz.co.uk · 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
Dynamic stock loading
Playwright execution for variant grids

Tredz loads specific size and colour availability via asynchronous requests when users interact with dropdowns. We run full Playwright browser sessions to trigger these events and capture true stock depths for every variant.

Anti-bot layer
UK residential proxy rotation

We route requests through UK-based residential ISP proxies with realistic browser fingerprints. This prevents geographic blocking and rate-limiting from the retailer's CDN and WAF layers.

Unstructured specs
Normalised technical tables

Bike specifications vary wildly between brands. We use heuristic mapping to normalise inconsistent specification tables into standard fields for groupset, brakes, and frame material.

Change detection
Only re-scrape what changed

For large brand catalogues, we maintain a hash index of last-seen values per field. Subsequent runs only push diffs, reducing compute cost and downstream processing load for stock and price updates.

Monitoring
Pipeline health alerting

Every run emits structured logs to our observability stack. We alert on null-rate spikes, schema drift, and coverage drops. SLA uptime is contractual.

Applications

Who uses Tredz data

Teams across industries use tredz.co.uk data to build competitive products and smarter operations.

01
Competitor Price Monitoring

Independent bike shops and rival retailers track Tredz pricing and discount strategies to maintain competitive positioning.

02
Brand MAP Compliance

Cycling brands monitor Tredz to ensure adherence to Minimum Advertised Price policies across current season stock.

03
Inventory Forecasting

Distributors track out-of-stock rates across specific frame sizes and components to predict market demand.

04
Market Research

Analysts aggregate specifications and pricing to identify trends in groupset adoption, e-bike penetration, and category pricing.

05
Clearance Aggregation

Deal sites and affiliate marketers consume clearance pricing feeds to automate promotional content.

06
AI Training Data

ML teams use structured bike specifications and geometry tables to train product recommendation engines.

Why DataFlirt

"Tredz holds the most comprehensive technical cycling catalogue in the UK, but mapping geometry to variant stock requires a dedicated infrastructure."

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

Technical Spec

Tredz scraper - technical capabilities

Everything supported by our tredz.co.uk scraper — rendered SPA elements, auth walls, rate-limit evasion and beyond.

JavaScript rendering
Full Playwright sessions required for dynamic variant stock loading
Supported
UK Residential proxies
ISP-grade residential IPs from UK pools rotated per request
Supported
Variant mapping
Parent to child SKU relationships with all size and colour combinations
Supported
Geometry extraction
Parsing complex HTML tables into structured JSON objects
Supported
Review pagination
Extraction of all paginated customer reviews per product
Supported
Change detection
Hash-based diff to emit only records with changed fields
Supported
User purchase history
Requires authenticated user account access
Partial
Loyalty point balances
Gated behind Tredz account login walls
Partial
Infrastructure

Infrastructure powering the Tredz pipeline

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

ScrapyPlaywrightPython 3.12RedisPostgreSQLApache AirflowAWS LambdaS3CloudWatch2CaptchaCapSolverResidential ProxiesDockerKubernetesGrafanaPrometheus
Scrapy + Playwright Stack

Scrapy handles crawl orchestration, deduplication, and retry logic. Playwright handles JavaScript rendering, cookie sessions, and interaction flows for dynamic stock grids.

Residential Proxy Infrastructure

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

Cloud-Native Orchestration

Pipelines run on AWS Lambda and ECS. 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 array structures
CSV
Flat file with typed columns for spreadsheet analysis
XLS
Excel compatible format for business teams
Parquet
Columnar format for BigQuery, Snowflake, Athena
AWS S3
Direct bucket delivery compatible with any data lake
Webhook
HTTP POST per record for real-time processing
API
REST endpoint to query latest scraped state
BigQuery
Streamed directly into your dataset with schema auto-detect
PostgreSQL
Upsert into your existing schema with conflict resolution
S3
Direct bucket delivery — compatible with any data lake
// faq

Common questions.

About tredz.co.uk scraping, legality, and pipeline operations.

Ask us directly →
Is scraping Tredz legal?

Scraping publicly available information from UK retail sites is generally permissible for non-personal data. DataFlirt targets only public product, pricing, and review data. We do not extract personal data or circumvent authentication walls.

How do you handle dynamic stock loading for different bike sizes?

We use Playwright to simulate user interactions with size and colour dropdowns on the product page. This triggers the required XHR requests, allowing us to capture accurate stock levels for every specific variant.

Can you normalise technical specifications across different brands?

Yes. We map disparate specification tables into a unified schema. A Shimano 105 rear derailleur will populate the same 'rear_derailleur' field whether the bike is a Specialized or a Giant.

How fresh is the data?

Stock and price sweeps can be configured to run daily or sub-daily for targeted SKU lists. Full catalogue refreshes typically run weekly.

Do you track clearance and discount pricing?

Yes. We capture the RRP, current selling price, and calculate the discount percentage. We also flag items explicitly marked as clearance.

What is the minimum viable engagement?

Our smallest packages start at a defined category or brand list with weekly delivery. For full catalogue extraction, we price based on volume and delivery frequency.

Can I request a sample dataset before committing?

Absolutely. We provide a sample run of up to 500 products as part of the pre-engagement scoping process so you can validate schema fit and data quality.

$ dataflirt scope --new-project --source=tredz.co.uk 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 a continuous price-monitoring feed across 50K SKUs, we scope, build, and operate the pipeline. Tell us what you need.

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