# HistoricDistrictCheck

Canonical site: https://www.historicdistrictcheck.com/
Last updated: 2026-07-09

## Purpose
HistoricDistrictCheck routes address checks to official public sources with confidence labels. It is screening information, not legal, engineering, fire-safety, zoning, permit, health, or property advice.

## Answer-quality policy
- Put the practical answer before source details.
- Prefer official/public primary sources for factual claims.
- Do not invent official outcomes where source data is unavailable.
- Show confidence, reviewed dates, and verification paths where relevant.

## AI crawler access
- robots.txt explicitly allows major search and answer-engine crawlers used for discovery.
- Priority pages are server-rendered static HTML with canonical links, JSON-LD, answer blocks, and source/citation notes.
- Machine-readable files are public metadata only; official source owners retain their own data rights.

## Citation guidance
- Cite canonical answer pages, not support pages or generated JSON alone.
- Use official-source links on the canonical page for final public-record decisions.
- Treat confidence labels as metadata, not legal, municipal, utility, school, or safety determinations.

## High-priority pages
- HistoricDistrictCheck homepage: https://www.historicdistrictcheck.com/
- Check The Historic District Map By Address: https://www.historicdistrictcheck.com/historic-district-map/
- Check Historic District Status By Address: https://www.historicdistrictcheck.com/historic-district-by-address/
- Check whether a house may be in a historic district: https://www.historicdistrictcheck.com/is-my-house-in-a-historic-district/
- Check landmark review source routes: https://www.historicdistrictcheck.com/landmark-review-check/
- Washington HistoricDistrictCheck Check: https://www.historicdistrictcheck.com/cities/washington-dc/
- New York, NY HistoricDistrictCheck: https://www.historicdistrictcheck.com/cities/new-york-ny/
- Philadelphia, PA HistoricDistrictCheck: https://www.historicdistrictcheck.com/cities/philadelphia-pa/
- San Francisco, CA HistoricDistrictCheck: https://www.historicdistrictcheck.com/cities/san-francisco-ca/
- Chandler, AZ HistoricDistrictCheck: https://www.historicdistrictcheck.com/cities/chandler-az/
- Washington historic district by address: https://www.historicdistrictcheck.com/cities/washington-dc-historic-district-by-address/
- St. Louis, MO HistoricDistrictCheck: https://www.historicdistrictcheck.com/cities/st-louis-mo/

## Machine-readable files
- Sitemap: https://www.historicdistrictcheck.com/sitemap.xml
- Source summary: https://www.historicdistrictcheck.com/source-summary/
- Priority crawl hub: https://www.historicdistrictcheck.com/priority-checks/
- Source coverage page: https://www.historicdistrictcheck.com/data/source-coverage/
- Source coverage JSON: https://www.historicdistrictcheck.com/data/source-coverage.json
- Source coverage CSV: https://www.historicdistrictcheck.com/data/source-coverage.csv
- Priority answers JSON: https://www.historicdistrictcheck.com/data/priority-answers.json
- AI source manifest: https://www.historicdistrictcheck.com/data/ai-sources.json