SYSTEM all green source greatschools.org queue 128,419 profiles p99 latency 842ms dataflirt.com · scraper/greatschools-org
RUN 41 active pipelines greatschools.org live

GreatSchools data,
at warehouse scale.

We extract school profiles, test scores, equity ratings, and community reviews from GreatSchools. Delivered as clean JSON, CSV, or Parquet to S3, BigQuery, or Snowflake.

Schools extracted
134K /run
Reviews processed
3.8M /run
District records
14.2K /month
Active pipelines
41
Uptime
99.98%
Data Dictionary

Every field we extract from greatschools.org

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

Complete list of extractable fields for School Profiles objects from greatschools.org. All fields typed and schema-versioned.

school_idschool_nameschool_typegrades_servedaddresscitystatezip_codephone_numberwebsite_urldistrict_nameoverall_ratingtotal_students
school_profiles
● 200 OK
"school_id": "04128",
"school_name": "Lincoln High School",
"school_type": "Public",
"grades_served": "9-12",
"city": "Seattle",
"state": "WA",
"overall_rating": 8,
"total_students": 1452
# school_idschool_nameschool_typegrades_servedaddresscity
1
2
3

Complete list of extractable fields for Test Scores objects from greatschools.org. All fields typed and schema-versioned.

school_idsubjectgrade_levelproficiency_pctstate_avg_pctlow_income_pctlow_income_state_avgtest_yeartest_name
test_scores
● 200 OK
"school_id": "04128",
"subject": "Math",
"grade_level": "11",
"proficiency_pct": 74,
"state_avg_pct": 52,
"test_year": "2023",
"test_name": "Smarter Balanced Assessment"
# school_idsubjectgrade_levelproficiency_pctstate_avg_pctlow_income_pct
1
2
3

Complete list of extractable fields for Equity Ratings objects from greatschools.org. All fields typed and schema-versioned.

school_idsubgroupequity_ratinggraduation_ratestate_avg_grad_ratecollege_readiness_pctsuspension_ratechronic_absenteeism
equity_ratings
● 200 OK
"school_id": "04128",
"subgroup": "Hispanic",
"equity_rating": 6,
"graduation_rate": 88,
"state_avg_grad_rate": 82,
"suspension_rate": 2.1,
"chronic_absenteeism": 14.5
# school_idsubgroupequity_ratinggraduation_ratestate_avg_grad_ratecollege_readiness_pct
1
2
3

Complete list of extractable fields for Reviews & Community objects from greatschools.org. All fields typed and schema-versioned.

review_idschool_iduser_rolestar_ratingreview_textsubmitted_datehelpful_votestopic_category
reviews_& community
● 200 OK
"review_id": "R948271",
"school_id": "04128",
"user_role": "Parent",
"star_rating": 5,
"review_text": "Excellent teachers and strong AP program.",
"submitted_date": "2023-10-14",
"helpful_votes": 12,
"topic_category": "Academics"
# review_idschool_iduser_rolestar_ratingreview_textsubmitted_date
1
2
3

Complete list of extractable fields for Demographics objects from greatschools.org. All fields typed and schema-versioned.

school_idrace_white_pctrace_black_pctrace_hispanic_pctrace_asian_pctlow_income_pctstudent_teacher_ratiofree_lunch_pct
demographics
● 200 OK
"school_id": "04128",
"race_white_pct": 45,
"race_asian_pct": 22,
"race_hispanic_pct": 18,
"race_black_pct": 8,
"low_income_pct": 31,
"student_teacher_ratio": 18,
"free_lunch_pct": 28
# school_idrace_white_pctrace_black_pctrace_hispanic_pctrace_asian_pctlow_income_pct
1
2
3

Capabilities

Complete K-12 educational data extraction

Our GreatSchools scraper captures every layer of the platform: overall ratings, detailed equity metrics, standardized test scores, and qualitative community feedback.

Full School Profiles

Address, district, grades served, and contact metadata for public, charter, and private schools.

GreatSchools Summary Ratings

Overall rating, test score rating, student progress rating, and equity rating extracted as integers.

Standardized Test Scores

Proficiency percentages by subject and grade, benchmarked against state averages.

Equity & Subgroup Data

Performance metrics broken down by race, ethnicity, and income levels.

Advanced Coursework

AP course participation rates and STEM program availability.

Environment & Discipline

Suspension rates, chronic absenteeism, and student-teacher ratios.

Community Reviews

Star ratings and full text reviews from parents, students, and teachers across all pages.

District-Level Aggregation

Roll-up metrics for school districts and regional comparisons.

Scheduled Updates

Track rating changes and new reviews across academic years with automated pipelines.

// engagement pipeline

From school list to warehouse record

Brief in. Clean data out.

Define Scope
d 0

Provide state lists, zip codes, or district names. We design the extraction schema together.

Pipeline Build
d 2–4

We configure Scrapy crawlers, proxy rotation, and session management for greatschools.org.

Validation & QA
d 4–6

Schema validation, null-rate checks, and sample data review before full launch.

Delivery
ongoing

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

Under the hood

Handling educational data pipelines

GreatSchools employs dynamic rendering for its data visualizations. Here is how we extract the underlying numbers reliably.

pipeline-monitor · greatschools.org · 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
JavaScript charting extraction
Extracting raw JSON from React hydration states

GreatSchools renders test scores and demographic breakdowns using complex SVG charts. Instead of parsing DOM elements, we intercept the underlying JSON payloads powering these visualizations to guarantee exact percentage values.

Anti-bot layer
Residential proxy rotation

We utilise US-based residential ISP proxies with realistic browser fingerprints to bypass perimeter defenses and prevent IP bans during full-state catalogue extractions.

Pagination traversal
Iterating through community reviews

School profiles often contain hundreds of paginated parent and student reviews. Our crawlers systematically traverse these endpoints without dropping records or triggering rate limits.

Schema stability
Fallback selectors for varying school types

Public, private, and charter schools display different data modules. We use conditional extraction logic to normalise these structures into a single, predictable schema.

Change detection
Only re-scrape what has changed

For ongoing monitoring, we maintain a hash index of last-seen values per school. Subsequent runs only push diffs, reducing downstream processing load.

Applications

Who uses GreatSchools data

Teams across industries use greatschools.org data to build competitive products and smarter operations.

01
Real Estate Platforms

Enriching property listings with local school ratings, test scores, and boundary data.

02
EdTech Analytics

Benchmarking student performance and identifying district-level trends for product development.

03
Academic Research

Analysing equity gaps, demographic shifts, and educational outcomes across states.

04
Policy Analysis

Evaluating the impact of funding changes on standardised test scores and graduation rates.

05
Relocation Services

Providing corporate transferees with detailed neighbourhood school profiles.

06
Investment Due Diligence

Assessing charter school networks and regional educational infrastructure.

Why DataFlirt

"School quality is a primary driver of real estate value and demographic shifts. GreatSchools aggregates this reality, but requires infrastructure to query at scale."

Extracting data from GreatSchools involves parsing complex JavaScript visualisations, handling strict bot protection, and normalising fragmented district data. DataFlirt manages this pipeline end-to-end, delivering structured educational metrics directly to your warehouse so your analysts can focus on modelling.

Technical Spec

GreatSchools scraper technical capabilities

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

JS rendering for charts
Full Playwright sessions required for dynamic test score visualisations
Supported
Review pagination
Extract all parent, student, and teacher reviews
Supported
District polygon mapping
Extract boundary coordinates associated with school profiles
Supported
Residential US proxies
ISP-grade residential IPs from US pools rotated per request
Supported
Change detection
Hash-based diff to only emit records with changed fields since last run
Supported
Webhook delivery
HTTP POST per record or batch
Supported
Logged-in parent profiles
Private user account data requiring authentication
Partial
Private saved school lists
User-generated private lists behind login walls
Partial
Infrastructure

Infrastructure powering the GreatSchools 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 interaction flows for complex visualisations.

Residential Proxy Infrastructure

We maintain pools of residential ISP proxies across US regions. Rotation happens per-request to prevent rate limiting.

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 and Snowflake
AWS S3
Direct bucket delivery
Webhook
HTTP POST per record
API
REST endpoint for on-demand queries
PostgreSQL
Upsert into your existing schema
BigQuery
Streamed directly into your dataset
Snowflake
Stage and COPY INTO workflow
S3
Direct bucket delivery — compatible with any data lake
// faq

Common questions.

About greatschools.org scraping, legality, and pipeline operations.

Ask us directly →
Is scraping GreatSchools legal?

Scraping publicly available information from GreatSchools is generally permissible. DataFlirt targets only public, non-authenticated school ratings, test scores, and reviews. We do not extract personal user data or circumvent authentication walls.

How do you handle bot protection?

We use US residential ISP proxies and full Playwright browser sessions with realistic fingerprints. Our request timing is modelled on human behaviour to prevent triggering perimeter blocks.

How fresh is the data?

We typically configure weekly or monthly cadences for educational data, aligning with academic cycles and standard reporting periods.

Can you track rating changes over time?

Yes. Every pipeline run produces timestamped snapshots. We maintain a time-series table for ratings and test scores from the date your pipeline starts.

Do you extract all community reviews?

Yes. We paginate across all parent, student, and teacher reviews, capturing full text, star ratings, and submission dates.

Can I request a sample dataset?

Yes. We provide a sample run of up to 500 schools as part of the pre-engagement scoping process to validate schema fit and data quality.

$ dataflirt scope --new-project --source=greatschools.org 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 state extract or a continuous monitoring feed across the US, we scope, build, and operate the pipeline. Tell us what you need.

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