
Health Inspections + Rat Sightings for Boston restaurants
Live 311 rodent reports + official inspection records, in one place.
๐ Free basics โข ๐ Rat Premium $19/year unlocks full details




Residents call 311 to report rat sightings. Health inspectors visit restaurants.
Our system pulls official city data and plots it on an interactive map in real-time.
Check before you eat! Free users see scores, Premium members get the full story.
October 2025
Featured in data analysis of Boston's rodent problem, highlighting how the tool helps residents identify rat hot spots by neighborhood.
Read the full story โNovember 2025
Featured interview about tracking rat sightings across Boston using live 311 data and interactive mapping.
Listen to the interview โ
See rat sightings across Greater Boston

Full inspection history and violations
Unlock full inspection details + complete violation history
$19/year โข No trial
Recent sightings from Boston 311
Name and last inspection date
Recent activity only
See exactly what inspectors found
Unlimited historical inspection data
Get new premium features automatically
Cancel anytime โข No hidden fees
Recent 311 reports show where rodents were spotted across Greater Boston. Free for everyone, pulled from official city sources.
See inspection outcomes by restaurant for free. Upgrade to Premium for full violation details and complete history.
Check rat activity before signing a lease. See where rodent sightings are concentrated.
Pick a restaurant with a clean inspection record. No surprises!
Check restaurant inspection records before ordering. Premium shows specific violations.
Perfect for researching urban wildlife patterns and public health trends.
Property owners can monitor their areas and stay informed about rodent activity.
Neighborhood groups track problems and advocate for better city services.
All data is publicly available information from official government sources
Check Boston restaurants before you eat out.
๐ Free basics โข ๐ Premium ($19/year) unlocks full inspection details
We use official 311 service request data from Boston, Brookline, and Cambridge. When residents report rodent activity, it appears after the city publishes it.
We pull Boston inspection data regularly (health inspections are currently Boston-only). New results typically appear within a day or two of publication.
Critter sightings: Boston, Brookline, and Cambridge (with Somerville coming soon). Restaurant health inspections: Boston only.
Rat Radar is a mobile-friendly web app that works great on any device. No download needed - just visit our site on your phone!