SYSTEM all green source century21.com queue 12,491 pages p99 latency 215ms dataflirt.com · scraper/century21-com
RUN - 114 active pipelines - century21.com live

Century21 data,
at warehouse scale.

We extract residential listings, commercial properties, agent directories, and office intelligence from Century21. Delivered as clean JSON, CSV, or Parquet to S3, BigQuery, or Snowflake on your cadence.

Properties extracted
1.2M /run
Price updates
45.2K /24h
Agent profiles
142K /run
Active pipelines
114
Uptime
99.98%
Data Dictionary

Every field we extract from century21.com

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

Complete list of extractable fields for Property Listings objects from century21.com. All fields typed and schema-versioned.

listing_idmls_numberproperty_typepricecurrencyaddresscitystatezip_codebedsbathssqftlot_sizeyear_builtdescriptionagent_idoffice_idimage_urlsstatus
property_listings
● 200 OK
"listing_id": "C21-8849201",
"mls_number": "ML8192039",
"price": 850000.0,
"address": "123 Maple Street",
"beds": 4,
"baths": 3.0,
"sqft": 2450,
"status": "Active"
# listing_idmls_numberproperty_typepricecurrencyaddress
1
2
3

Complete list of extractable fields for Agent Profiles objects from century21.com. All fields typed and schema-versioned.

agent_idfirst_namelast_nametitleoffice_idphone_numberemailwebsite_urllanguagesspecialtiesdesignationsactive_listings_countprofile_image_url
agent_profiles
● 200 OK
"agent_id": "AGT-39201",
"first_name": "Sarah",
"last_name": "Jenkins",
"phone_number": "+1-555-019-2834",
"languages": "['English', 'Spanish']",
"active_listings_count": 14,
"office_id": "OFF-9920"
# agent_idfirst_namelast_nametitleoffice_idphone_number
1
2
3

Complete list of extractable fields for Office Directories objects from century21.com. All fields typed and schema-versioned.

office_idoffice_namebroker_nameaddresscitystatezip_codephonewebsite_urlagent_countservice_areaslatitudelongitude
office_directories
● 200 OK
"office_id": "OFF-9920",
"office_name": "Century 21 Real Estate Center",
"city": "Seattle",
"state": "WA",
"agent_count": 42,
"phone": "+1-555-882-1192",
"broker_name": "David Chen"
# office_idoffice_namebroker_nameaddresscitystate
1
2
3

Complete list of extractable fields for Open Houses objects from century21.com. All fields typed and schema-versioned.

listing_idaddresscitystatepriceopen_house_datestart_timeend_timeagent_idremarks
open_houses
● 200 OK
"listing_id": "C21-8849201",
"address": "123 Maple Street",
"open_house_date": "2026-06-14",
"start_time": "13:00",
"end_time": "16:00",
"agent_id": "AGT-39201",
"price": 850000.0
# listing_idaddresscitystatepriceopen_house_date
1
2
3

Complete list of extractable fields for Historical Pricing objects from century21.com. All fields typed and schema-versioned.

listing_idmls_numbercurrent_priceoriginal_priceprice_drop_amountprice_drop_pctdays_on_marketlist_datestatus_changes
historical_pricing
● 200 OK
"listing_id": "C21-8849201",
"current_price": 850000.0,
"original_price": 890000.0,
"price_drop_pct": 4.5,
"days_on_market": 24,
"list_date": "2026-05-21",
"status_changes": 1
# listing_idmls_numbercurrent_priceoriginal_priceprice_drop_amountprice_drop_pct
1
2
3

Capabilities

Everything you need from Century21, nothing you do not

Our Century21 scraper handles every layer of the platform: property listings, agent directories, geospatial map parsing, and price reduction tracking, with anti-bot circumvention built in.

Full Listing Extraction

Beds, baths, sqft, lot size, year built, and full property descriptions parsed into structured types.

Agent & Broker Intelligence

Extract agent directories, contact numbers, spoken languages, and active listing counts per office.

MLS Number Mapping

Cross-reference Century21 listings with local MLS identifiers for downstream normalisation.

Open House Schedules

Track upcoming open house dates, times, and associated agent contact details.

Price Reduction Tracking

Monitor original list price versus current price to calculate discount percentages and days on market.

Commercial & Fine Homes

Filter and extract specialised property categories including Century21 Commercial and Fine Homes & Estates.

Geospatial Coordinate Parsing

Extract latitude and longitude data for precise mapping and spatial analysis.

High-Resolution Media

Capture arrays of image URLs and virtual tour links associated with each property.

Multi-Region Support

Target specific states, ZIP codes, or radii to isolate regional real estate markets.

Scheduled Updates

Run daily or weekly pipelines to catch new listings, pending sales, and sold statuses.

// engagement pipeline

From target zip codes to warehouse records

Brief in. Clean data out.

Define Scope
d 0

Provide ZIP codes, cities, or agent directories. We design the extraction schema together.

Pipeline Build
d 2–4

We configure Scrapy crawlers, proxy rotation, and session management for century21.com.

Validation & QA
d 4–6

Schema validation, null-rate checks, and geospatial coordinate verification 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 Century21 pipeline handles the hard parts

Real estate aggregators invest heavily in scraping detection. Here is how we stay resilient.

pipeline-monitor · century21.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

Real estate sites monitor request velocity. We use residential ISP proxies with realistic browser fingerprints and randomised request timing to prevent IP bans.

Map-based pagination
Handling geospatial search grids

Century21 relies on map-boundary API calls. We reverse-engineer the bounding box requests to paginate through high-density urban areas without missing listings.

Schema stability
Resilient selectors with fallback chains

DOM structures for listings vary by property type. Our selector strategy uses multiple fallback chains per field so a layout change does not break your pipeline.

Change detection
Only re-scrape what has changed

For large state-wide catalogues, we maintain a hash index of last-seen values per field. Subsequent runs only push diffs, reducing compute cost and storage bloat.

Monitoring & alerting
24/7 pipeline health with anomaly detection

Every run emits structured logs to our observability stack. We alert on null-rate spikes and coverage drops, responding before you notice.

Applications

Who uses Century21 data and how

Teams across industries use century21.com data to build competitive products and smarter operations.

01
Investment Analysis

Identify underpriced properties, track days on market, and calculate price per square foot across target ZIP codes.

02
PropTech Aggregation

Enrich existing real estate platforms with normalised listing data, agent profiles, and MLS identifiers.

03
Agent Recruiting

Brokerages track top-performing Century21 agents based on active listing volume and geographic dominance.

04
Market Trend Forecasting

Analyse inventory levels, average listing prices, and price reduction frequencies to predict local market shifts.

05
Lead Generation

Extract office directories and broker contact information for B2B real estate service sales.

06
Appraisal & Valuation

Feed recent listing data and property characteristics into automated valuation models.

Why DataFlirt

"Century21 holds critical inventory and agent performance data, but extracting it requires navigating complex geospatial map APIs and strict rate limits."

Most teams underestimate the investment required: reliable real estate scraping requires residential proxies, map bounding-box pagination, daily selector maintenance, and anomaly monitoring. DataFlirt absorbs that complexity so your engineers can focus on the analysis, not the infrastructure.

Technical Spec

Century21 scraper technical capabilities

Everything supported by our century21.com scraper — rendered SPA elements, auth walls, rate-limit evasion and beyond.

Geospatial bounding box search
Extract listings using precise latitude and longitude coordinate grids
Supported
Agent contact extraction
Capture public office numbers and emails from agent directory pages
Supported
Image URL arrays
Extract high-resolution media links for every property listing
Supported
MLS ID extraction
Capture local MLS identifiers for cross-referencing datasets
Supported
Price history tracking
Calculate price drops based on original list price versus current price
Supported
Open house scheduling
Extract dates and times for upcoming public viewings
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 for real-time downstream processing
Supported
Saved searches / User accounts
Gated behind consumer user authentication walls
Partial
My C21 Account private portal
Requires internal employee credentials and MFA
Partial
Infrastructure

Infrastructure powering the Century21 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 and retry logic. Playwright handles JavaScript rendering and map interactions.

Residential Proxy Infrastructure

We maintain pools of residential ISP proxies. Rotation happens per-request with sticky sessions where required.

Cloud-Native Orchestration

Pipelines run on AWS Lambda and ECS. Airflow handles scheduling, dependency management, and SLA alerting.

Output & Delivery

Your data, your destination

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

JSON
Newline-delimited or nested schema
CSV
Flat file with typed columns
XLS
Excel compatible format for analyst teams
Parquet
Columnar format for BigQuery, Snowflake, Athena
AWS S3
Direct bucket delivery
Webhook
HTTP POST per record for real-time processing
API
REST API access to extracted data
Snowflake
Stage + COPY INTO workflow
S3
Direct bucket delivery — compatible with any data lake
// faq

Common questions.

About century21.com scraping, legality, and pipeline operations.

Ask us directly →
Is scraping Century21 legal?

Scraping publicly available real estate listings is generally permissible under applicable law. DataFlirt targets only public, non-authenticated property and agent data. Clients should review Century21 Terms of Service and consult legal counsel for specific use cases.

How do you handle map-based search results?

We reverse-engineer the underlying API calls using bounding box coordinates to ensure we capture all listings in high-density areas without missing records due to map zoom limits.

Can you extract agent contact information?

Yes, we extract public office numbers, emails where visible, and associated broker details from the agent directory pages.

How fresh is the property data?

Pipelines can be configured to run daily or sub-daily to capture new listings, price changes, and sold statuses rapidly.

Do you download property images?

We extract the high-resolution image URLs. We do not host the image binaries by default, but can configure download pipelines if required.

Can you track price reductions over time?

Yes. Every pipeline run produces timestamped snapshots. We maintain a time-series record per listing to track original price versus current price.

What is the minimum viable engagement?

Our smallest packages start at defined geographic regions, typically at the state or major metro level, with weekly or daily delivery cadences.

$ dataflirt scope --new-project --source=century21.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 specific zip code export or a continuous national property feed, we scope, build, and operate the pipeline. Tell us what you need.

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