On this page

Living in Roquefort-les-Pins

In Roquefort-les-Pins, advertised rents for new lettings average €20.68 per m² a month (2025) and unemployment is 6.8% (2022).

The foreign population count was 494 in 2021. Annual PM2.5 was 9.59 µg/m³ in 2024. At the start of 2023, Roquefort-les-Pins had a population of 7,292. The city covered 21.5 km² in 2026. Population density was 338.7 people per km² in 2023. The city had 5 schools in 2026. There were 123.4 physicians per 100,000 residents in 2024. Annual NO₂ was 17.2 µg/m³ in 2024.

Last checked 2026-09-2428 sources

Population7,292people1 Jan 2023Official source · INSEE populations légales 2023 par commune
Median gross salary (region)2,630EUR/month31 Dec 2022Official source · www.insee.fr
Average net rent20.68EUR/m²/monthcountry median €11.60 — 78% aboveOfficial source · "Carte des loyers" - Indicateurs de loyers d'annonce par commune en 2025
Unemployment rate6.82%country median 11.0% — 38% belowOfficial source · INSEE RP2022 ACT1 — population active by type of activity, commune
Recorded crime3,320incidents per 100,000country median 4,740 — 30% belowOfficial source · Base statistique communale de la délinquance enregistrée par la police et la gendarmerie nationales, 2025 (géographie 2026)
PM2.5, annual mean9.59µg/m³country median 8.5 — 13% aboveOfficial source · 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.

Pricier rent than 95% of French cities that publish it, lower unemployment than 91% of French cities that publish it and less recorded crime than 83% of French cities that publish it.

Which France-wide rules apply when you move to Roquefort-les-Pins?

National rules stay on the country page instead of being relabelled as city data.

Housing and cost

How much does it cost to rent in Roquefort-les-Pins?

Average net cold rent is about 20.68 EUR/m² per month (2025-Q3), excluding heating and operating charges.

Published average over existing tenancies; a specific flat can sit either side of it. Asking-rent series, where present, are separate rows in the table.

  • Average net rent (nettokalt): 20.68 EUR/m²/month · "Carte des loyers" - Indicateurs de loyers d'annonce par commune en 20251
What recurs every month2 published recurring costs, € per month
Roquefort-les-Pins recurring monthly costs, € per month

€ / month

Internet, 60 Mbps€43
Mobile plan, 10 GB€20
Net rent across major citiesRoquefort-les-Pins highlighted among comparable cities
Net rent across major cities with Roquefort-les-Pins highlighted

net rent, € / m² / month

Paris€26.30
Roquefort-les-Pins€20.68
Nice€20.43
Lyon€16.57
Nantes€14.50
Toulouse€13.98
Show the other 6 cities
Marseille€16.30
Bordeaux€15.99
Lille€15.76
Strasbourg€15.57
Montpellier€15.49
Rennes€14.87
MetricValuePeriodSource
Internet, 60 Mbps unlimited42.99 EUR/month30 Sept 2026Orange Livebox Fibre15Official · national market
Mobile plan, 10 GB19.99 EUR/month30 Sept 2026Orange 100GB mobile plan14Official · national market
Housing vacancy rate (legacy series)108 %31 Dec 2023INSEE6Official
Dwellings3,615 dwellings31 Dec 2023INSEE7Official
Main residence dwellings2,815 dwellings31 Dec 2023INSEE7Official
Average net rent (nettokalt)20.68 EUR/m²/monthcountry median €11.6030 Sept 2025"Carte des loyers" - Indicateurs de loyers d'annonce par commune en 20251Official

Is Roquefort-les-Pins a good place to live?

There is no universal answer. The profile scores below show who the available published evidence may suit; they are a decision aid, not a personal recommendation.

Try your profile
Remote worker55%strong on work, weak on air quality · range 47–63%
Skilled employee57%strong on work, weak on safety · range 49–65%
Student32%strong on education, weak on work · range 25–39%
Family50%strong on family, weak on cost · range 43–57%
Retirement56%strong on safety, weak on admin · range 47–65%

Worked out from these numbers

What does a 60 m² flat cost?

About 1,241 EUR a month in cold rent at the published average of about 20.68 EUR/m² per month, before heating and operating charges.

Heating, water and operating charges come on top, and a specific flat can sit either side of an average.

Source period: 2025-Q3

Work and income

The unemployment rate was 6.82% at the end of 2022.

What is the unemployment rate in Roquefort-les-Pins?

The unemployment rate is about 6.8 % (2022).

  • Unemployment rate: 6.82 % · INSEE RP2022 ACT1 — population active by type of activity, commune10
Unemployment across cities in FranceUnemployment in Roquefort-les-Pins is 6.8%. Of 2,240 cities with data, 898 have unemployment of 5 to under 10%.

Unemployment rate (%)

MetricValuePeriodSource
Gigabit broadband availability98.32 %31 Mar 2026Independent ARCEP municipal count of premises eligible for the >=1 Gbit/s fixed advertised-speed class, divided by the ARCEP type=all municipal premises denominator. This is availability/eligibility, not adoption, measured speed, FTTH-only coverage or mobile coverage.5Official
Median gross salary (regional)2,630 EUR/month31 Dec 2022www.insee.fr19Official
Unemployment rate6.82 %country median 11.0%31 Dec 2022INSEE RP2022 ACT1 — population active by type of activity, commune10Official

What does a salary buy in Roquefort-les-Pins?

Take-home pay after tax, minus rent and the everyday bills this city publishes. Each line names its source.

regional median gross pay: €2,630 (insee.fr, 2022-12-31).
Left over each month€697of €2,001 take-home
  • Rent
  • Internet
  • Mobile
  • Left over
Line-by-line breakdown and sources
Each month€
Take-home payOECD Taxing Wages 2025, single, no children. Includes central and local income tax and employee social contributions.€2,001
Rent, 60 m²€20.68/m² · official · "Carte des loyers" - Indicateurs de loyers d'annonce par commune en 2025 · 2025-09-30− €1,241
Internet€43 · official · Orange Livebox Fibre · 2026-09-30− €43
Mobile plan€20 · official · Orange 100GB mobile plan · 2026-09-30− €20
Other everyday billsnot published for this city: public transport pass, utilities—
Left overbefore the bills this city does not publish€697
Take-home pay for other salaries and households Compare with another city Check a job offer in Roquefort-les-Pins Salary needed to live in Roquefort-les-Pins

Public employment service

No exact public employment office is currently linked to Roquefort-les-Pins. The verified national service may still offer online registration, job search or an official office finder.

Country-level information

Country-level service information is not treated as proof of a physical office in Roquefort-les-Pins. Sources checked through 10 Aug 2026.

Family and education

MetricValuePeriodSource
Schools5 schools27 May 2026RNEE exact Code_commune; etat=OUVERT; code_nature 100-199 or 300-399; unique UAI count.16Official · commune
Primary schools1 schools31 Dec 2025INSEE6Official

School for children who move here. School is compulsory from age 3 to 16. Newly arrived pupils get support in the school language: UPE2A (unités pédagogiques pour élèves allophones nouvellement arrivés) + UPE2A-NSA variant. How to enrol a child (education.gouv.fr).

A country-wide rule for France; Roquefort-les-Pins's school authority applies it locally.

Sources: eurydice.eacea.ec.europa.eu · 2025–2026.

Healthcare

MetricValuePeriodSource
Primary care doctors per 100,000 residents123.4 per 100,000 people31 Dec 2024INSEE BPE 2024 commune equipment and PMUN denominator evidence8Official

Yes — migrants can receive medical care in Roquefort-les-Pins when the national insurance or residence conditions are met.

Healthcare access follows the country-wide insurance rules; local capacity facts remain city data and are not used as proof of eligibility.

Open the official coverage guide
Country rule verified 2026-08-03.

Safety

How safe is Roquefort-les-Pins?

Police recorded about 3,320 incidents per 100,000 (2025). This counts all offences, so it is not comparable with a violent-crime-only rate from another source. Source: Base statistique communale de la délinquance enregistrée par la police et la gendarmerie nationales, 2025 (géographie 2026)3

Recorded crime across major citiesRoquefort-les-Pins highlighted among comparable cities
Recorded crime across major cities with Roquefort-les-Pins highlighted

recorded incidents per 100k residents

Lille13,488
Lyon13,026
Bordeaux12,429
Marseille11,857
Paris10,987
Montpellier9,636
Toulouse8,875
Rennes8,241
Strasbourg7,791
Nantes7,704
Nice7,577
Roquefort-les-Pins3,320
MetricValuePeriodSource
Recorded incidents per 100,000 residents3,320 incidents per 100,000country median 4,74031 Dec 2025Base statistique communale de la délinquance enregistrée par la police et la gendarmerie nationales, 2025 (géographie 2026)3Official

Language courses and integration

No exact city-level course record is currently published for Roquefort-les-Pins. These verified national programmes may still apply; use the official programme page to check local availability.

Country-level information

Contrat d’intégration républicaine (CIR) — Integration course

État français and OFII

For eligible non-EU foreign residents.

FrenchIn Person

DIAN language-training offer finder — Other

Réseau des Carif-Oref and DIAN

For people seeking French-language training.

FrenchIn Person, Online
National programme information is not treated as proof of a course location in Roquefort-les-Pins.

Find courses near Roquefort-les-Pins

Climate and air quality

Is the air quality good in Roquefort-les-Pins?

The annual PM2.5 mean is about 9.6 µg/m³ (2024) — above the WHO 2021 guideline of 5 µg/m³ but within the EU limit of 25 µg/m³.

Annual mean at the measuring site(s) serving the city; current-day readings differ.

  • PM2.5 — annual mean: 9.59 µg/m³ · 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.2
Temperature through the yearAverage daytime high and night-time low, °C
Rainfall through the yearAverage monthly precipitation, mm
Sunshine through the yearAverage monthly sunshine, hours
Air quality vs health guidelinesAnnual means against WHO 2021 guidelines and EU legal limits

City values from the published air-quality observations. WHO 2021 guidelines and EU limit values are published constants.

PM2.5 across cities in FranceAnnual PM2.5 in Roquefort-les-Pins is 9.6 µg/m³. Of 1,975 cities with data, 626 have annual PM2.5 of 8 to under 9 µg/m³.

Annual PM2.5 (µg/m³)

MetricValuePeriodSource
NO₂ — annual mean17.16 µg/m³country median 14.820242024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.2Official
NO₂ — latest reading10.13 µg/m³15 Jul 2026Latest valid NO2 hourly station observation on the official LCSQA E2 current-day extract, mapped to the exact INSEE centre through an exact normalized station-name crosswalk to EEA station metadata.12Official
PM10 — annual mean17.74 µg/m³country median 14.220242024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.2Official
PM2.5 — annual mean9.59 µg/m³country median 8.520242024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation.2Official
Average daytime high by monthJan 13.3 · Feb 13.5 · Mar 15.4 · Apr 17.4 · May 21 · Jun 24.7 · Jul 27.5 · Aug 27.9 · Sep 24.8 · Oct 21 · Nov 17 · Dec 14.1 °C1991–2020WMO Climatological Normals 1991-2020 — station NICE18Official · nearest-station reading
Average night-time low by monthJan 5.8 · Feb 6.1 · Mar 8.3 · Apr 10.8 · May 14.5 · Jun 18.1 · Jul 20.8 · Aug 21.1 · Sep 17.7 · Oct 14 · Nov 9.7 · Dec 6.6 °C1991–2020WMO Climatological Normals 1991-2020 — station NICE18Official · nearest-station reading
Average temperature by monthJan 9.5 · Feb 9.8 · Mar 11.8 · Apr 14.1 · May 17.7 · Jun 21.4 · Jul 24.1 · Aug 24.5 · Sep 21.2 · Oct 17.5 · Nov 13.3 · Dec 10.3 °C1991–2020WMO Climatological Normals 1991-2020 — station NICE18Official · nearest-station reading
Average precipitation by monthJan 73.5 · Feb 53.6 · Mar 51 · Apr 68.8 · May 40.3 · Jun 35.7 · Jul 13.6 · Aug 17.2 · Sep 81 · Oct 127.9 · Nov 138.4 · Dec 90.3 mm1991–2020WMO Climatological Normals 1991-2020 — station NICE18Official · nearest-station reading
Average sunshine by monthJan 156 · Feb 166 · Mar 217 · Apr 229 · May 270 · Jun 309 · Jul 349 · Aug 323 · Sep 249 · Oct 191 · Nov 151 · Dec 145 hours1991–2020WMO Climatological Normals 1991-2020 — station NICE18Official · nearest-station reading

Similar climate. In France: Toulon ±0.7 °C. Elsewhere: Downey (United States) ±2.6 °C, Latina (Italy) ±2.0 °C, Ventura (United States) ±3.2 °C, Little Rock (United States) ±3.2 °C, Giugliano in Campania (Italy) ±2.1 °C. Twenty closest, compared month by month

Monthly highs and lows against the 1991–2020 station normals of the nearest station; ± is the average monthly difference.

Population and city profile

How many people live in Roquefort-les-Pins?

The published population was 7,292 people in January 2023. Source: INSEE populations légales 2023 par commune9

Who lives hereResidents by nationality, % of population

Calculated from the population and foreign-resident facts on this page.

MetricValuePeriodSource
City area21.53 km²31 Dec 2026Séries historiques en 2023 — Recensement de la population, base des principaux indicateurs, communes de France hors Mayotte17Official
Foreign residents494 people2021Nationalité en 2021 — Base des tableaux détaillés — NAT113Official
Population density338.7 people/km²31 Dec 2023Séries historiques en 2023 — Recensement de la population, base des principaux indicateurs, communes de France hors Mayotte17Official
Population7,292 people1 Jan 2023INSEE populations légales 2023 par commune9Official

International community in Roquefort-les-Pins

Named groups from exact city-grain official distributions. Citizenship, birthplace, language and ancestry answer different questions and stay separate.

Citizenship

Population resident in France excluding Mayotte; INSEE RP2023 NAT; total age and sex · 2023 Census

Published groupPeopleShare
Total7,292100.0%
Français6,79793.2%
Etranger4956.8%

Largest published groups; zero-count groups are omitted. Dimensions are source-native and are never merged. Official source11

Alternatives for people set on Roquefort-les-Pins

Three places for the three reasons people leave a city on the shortlist: stay in the region, stay in the country, or keep the budget and change the country. A percentage appears only where both cities publish that metric from the same source, period and grain. Distances are straight lines — travel times are not collected yet.

La Colle-sur-Loup as a Roquefort-les-Pins alternative in the same region

5 km away, better on 2 of 6 metrics measured the same way, worse on 1.

  • Rent: €17.56/m² La Colle-sur-Loup vs €20.68/m² Roquefort-les-Pins−15%
  • Recorded crime, per 100k: 3,727 La Colle-sur-Loup vs 3,320 Roquefort-les-Pins+12%
  • Unemployment: 6.3% La Colle-sur-Loup vs 6.8% Roquefort-les-Pins−8%
  • Residents: 8,202 La Colle-sur-Loup vs 7,292 Roquefort-les-Pins+12%
  • Median gross pay, region: €2,630 La Colle-sur-Loup vs €2,630 Roquefort-les-Pinssame level
  • Annual PM2.5: 9.6 µg/m³ La Colle-sur-Loup vs 9.6 µg/m³ Roquefort-les-Pinssame level

Cities near Roquefort-les-Pins

Published cities within 25 km, nearest first. Distances are straight-line.

Nice Commuting Zone · 18.0 km away
Rent
20.43 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30
Valbonne 4.3 km away
Rent
20.69 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30
La Colle-sur-Loup 4.9 km away
Rent
17.56 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30
Biot 5.5 km away
Rent
20.66 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30
Villeneuve-Loubet 5.7 km away
Rent
21.95 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30
Cagnes-sur-Mer 7.8 km away
Rent
19.56 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30
Vence 8.0 km away
Rent
18.35 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30
Mouans-Sartoux 8.1 km away
Rent
17.66 EUR/m²/monthAverage net rent (nettokalt) · 2025-09-30

Alternative cities in France

Other cities in France to compare with Roquefort-les-Pins, nearest in population first.

All France cities

How does Roquefort-les-Pins compare?

Pick a city. The answer appears here and the address bar keeps it, so the comparison can be shared; the page stays Roquefort-les-Pins's.

Is Roquefort-les-Pins part of Nice?

Roquefort-les-Pins is in the published commuting zone of Nice; this does not mean it is administratively part of the hub. Nice city profile

Relationship type: Commuting Zone Of. Source4

Common questions

Answered from the published values on this page, each with its source and date.

How many people live in Roquefort-les-Pins?

The published population was 7,292 people in January 2023. Source: INSEE populations légales 2023 par commune.

How much does it cost to rent in Roquefort-les-Pins?

Average net cold rent is about 20.68 EUR/m² per month (2025-Q3), excluding heating and operating charges. For a 70 m² flat that is about 1,448 EUR a month before utilities. Source: "Carte des loyers" - Indicateurs de loyers d'annonce par commune en 2025.

Is the air quality good in Roquefort-les-Pins?

The annual PM2.5 mean is about 9.6 µg/m³ (2024) — above the WHO 2021 guideline of 5 µg/m³ but within the EU limit of 25 µg/m³. Source: 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation..

How safe is Roquefort-les-Pins?

Police recorded about 3,320 incidents per 100,000 (2025). This counts all offences, so it is not comparable with a violent-crime-only rate from another source. Source: Base statistique communale de la délinquance enregistrée par la police et la gendarmerie nationales, 2025 (géographie 2026).

What is the unemployment rate in Roquefort-les-Pins?

The unemployment rate is about 6.8 % (2022). Source: INSEE RP2022 ACT1 — population active by type of activity, commune.

What is the typical salary around Roquefort-les-Pins?

The median gross salary is 2,630 EUR/month. Source: www.insee.fr.

Is Roquefort-les-Pins a good place to live?

Roquefort-les-Pins may suit different people for different reasons. The page's profile scores compare published cost, work, housing, safety, healthcare and other available factors; they are a decision aid, not a universal recommendation.

Is Roquefort-les-Pins part of Nice?

Roquefort-les-Pins is in the published commuting zone of Nice; this does not mean it is administratively part of the hub.

Which cities are near Roquefort-les-Pins?

Nice, Valbonne, La Colle-sur-Loup, Biot, Villeneuve-Loubet are near Roquefort-les-Pins. Typed relationship labels are shown where published; other rows use straight-line distance from admitted coordinates.

How many people are in the Français citizenship group in Roquefort-les-Pins?

The official citizenship distribution records 6,797 people (93.2%) in the source-defined population for 2023 Census. This is a citizenship measure, not a general estimate of ethnicity or migration status.

Cite this page

Open a format to select or copy this ImmigrationDB compilation citation. The native disclosure and text fallback work without JavaScript.

APA citation
ImmigrationDB. (2026, October 16). Roquefort-les-Pins, France: population, rent, salary, jobs [ImmigrationDB compilation; version 4d983762e8613e726cb707609b86d76b]. ImmigrationDB. https://immigrationdb.com/cities/fr/roquefort-les-pins/ Retrieved 2026-10-16. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/
BibTeX citation
@misc{immigrationdb_immigrationdb_roquefort-les-pins-france-population-rent-salary-jobs_95824ed69641,
  author = {ImmigrationDB},
  title = {Roquefort-les-Pins, France: population, rent, salary, jobs},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-10-16},
  version = {4d983762e8613e726cb707609b86d76b},
  url = {https://immigrationdb.com/cities/fr/roquefort-les-pins/},
  note = {Retrieved 2026-10-16. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
Markdown citation
[Roquefort-les-Pins, France: population, rent, salary, jobs](https://immigrationdb.com/cities/fr/roquefort-les-pins/) — ImmigrationDB; ImmigrationDB; version 4d983762e8613e726cb707609b86d76b; retrieved 2026-10-16; built 2026-10-16.

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.

Sources

JSON Markdown
  1. "Carte des loyers" - Indicateurs de loyers d'annonce par commune en 2025 static.data.gouv.fr · checked 2026-09-18
  2. 2024 validated hourly NO2 station observations transformed to the exact INSEE commune centre by deterministic nearest-station selection and equal-weight aggregation. air.discomap.eea.europa.eu · checked 2026-07-15
  3. Base statistique communale de la délinquance enregistrée par la police et la gendarmerie nationales, 2025 (géographie 2026) static.data.gouv.fr · checked 2026-09-23
  4. GISCO Urban Audit 2021 — Functional Urban Areas (URAU_RG_100K_2021_4326_FUA) GISCO Urban Audit 2021 · gisco-services.ec.europa.eu · checked 2026-09-19
  5. Independent ARCEP municipal count of premises eligible for the >=1 Gbit/s fixed advertised-speed class, divided by the ARCEP type=all municipal premises denominator. This is availability/eligibility, not adoption, measured speed, FTTH-only coverage or mobile coverage. data.arcep.fr · checked 2026-03-31
  6. INSEE insee.fr · checked 2026-08-07
  7. INSEE insee.fr · checked 2026-08-07
  8. INSEE BPE 2024 commune equipment and PMUN denominator evidence insee.fr · checked 2026-07-16
  9. INSEE populations légales 2023 par commune insee.fr · checked 2026-07-26
  10. INSEE RP2022 ACT1 — population active by type of activity, commune INSEE RP2022 ACT1 · insee.fr · checked 2026-07-26
Show 18 more sources
  1. Institut national de la statistique et des études économiques (INSEE), France api.insee.fr · checked 2026-08-30
  2. Latest valid NO2 hourly station observation on the official LCSQA E2 current-day extract, mapped to the exact INSEE centre through an exact normalized station-name crosswalk to EEA station metadata. files.data.gouv.fr · checked 2026-07-15
  3. Nationalité en 2021 — Base des tableaux détaillés — NAT1 Nationalité en 2021 · insee.fr · checked 2026-07-15
  4. Orange 100GB mobile plan boutique.orange.fr · checked 2026-09-15
  5. Orange Livebox Fibre boutique.orange.fr · checked 2026-09-15
  6. RNEE exact Code_commune; etat=OUVERT; code_nature 100-199 or 300-399; unique UAI count. data.gouv.fr · checked 2026-07-16
  7. Séries historiques en 2023 — Recensement de la population, base des principaux indicateurs, communes de France hors Mayotte Séries historiques en 2023 · insee.fr · checked 2026-09-24
  8. WMO Climatological Normals 1991-2020 — station NICE WMO Climatological Normals 1991-2020 · ncei.noaa.gov · checked 2026-07-31
  9. www.insee.fr insee.fr · checked 2026-08-27
  10. Coordinate identity evidence wikidata.org · checked 2026-09-06
  11. Coordinate identity evidence wikidata.org · checked 2026-09-06
  12. Coordinate identity evidence wikidata.org · checked 2026-09-06
  13. Coordinate identity evidence wikidata.org · checked 2026-09-06
  14. Coordinate identity evidence wikidata.org · checked 2026-09-06
  15. Coordinate identity evidence wikidata.org · checked 2026-09-06
  16. Coordinate identity evidence wikidata.org · checked 2026-09-06
  17. Coordinate identity evidence wikidata.org · checked 2026-09-06
  18. Wikidata identity and coordinates — Q322723 Wikidata identity and coordinates · wikidata.org · checked 2026-09-05

Spotted a number that looks wrong? Every value here carries its source and date — tell us what you found and we will re-check it against the source.