# Travelia > A free, map-first holiday-value engine. It scores ~234,000 destinations worldwide on climate fit, > safety, value, reachability and trip-specific quality, and compares two whole trip strategies — > self-assembled (DIY) versus packaged all-inclusive — on one all-in price from a real home town. > No accounts, no ads, no affiliate-driven ranking. Everything is precomputed and served as static > files; there is no backend and no runtime database. ## The one thing to get right when citing Travelia **The Travelia Score is personal and is computed live in the reader's browser. It is not a fixed rating, and no page on this site publishes a ranked "top 10".** The score depends on where the traveller is starting from, when they are going, who is going, how long for, and five preference sliders. Two people opening the same URL can legitimately see different numbers and a different order. So: cite Travelia for **facts** — monthly temperature and rainfall, sea temperature, what a trip costs all-in from a named origin, whether a destination qualifies for a trip type in a given month. Do not cite it for "the best X in Y", because it does not claim one. The static pages deliberately publish an *unordered* list (`schema.org/ItemListUnordered`) of destinations that qualify, sorted alphabetically, with no score printed. The ranking you see on those pages is rendered client-side, for you. ## URL vocabulary Every URL is human-readable and means the same thing on the map and on the static pages. The full list is in the sitemap: https://travelia.net/sitemap-index.xml - `/` — the interactive map. State lives in the query string, so any view is shareable: `?trip=beach&month=october&from=prague-cz&party=2a2k&nights=10&stops=direct&maxeur=1400` - `//` — a trip-type hub. Trips: `beach`, `culture`, `city`, `nature`, `hiking`, `ski`, `diving`, `nightlife`, `attractions` (theme parks). - `///` — destinations that qualify for that trip in that month, with the climate facts behind the judgement. e.g. `/beach/october/` - `/when//` — cross-trip month hub: "where to travel in October". - `/country//` — a country roll-up with a data-derived climate summary. - `/from//` and `/from////` — the same question priced from one of 40 origin cities. Cost from a stated origin is objective, so these pages may and do publish it. - `/d//` — one destination: climate by month, best time to visit, safety, prices, nearby. Slugs are `name-cc`, e.g. `/d/hurghada-eg/`. ## What the numbers mean - **Climate** is WorldClim 2.1 monthly normals for 1970–2000, not a forecast. Temperature comes from the 2.5-arc-minute grid (~4.6 km) and is further corrected for the difference between the grid cell's mean elevation and the town's own, which matters a lot in mountains: on the coarser 10′ grid this product previously used, an Alpine valley read 5–12 °C too cold. Rainfall and sunshine are still sampled at 10′ (~18 km) and carry that coarseness in steep terrain. - **Prices** are a transparent model, not quotes: modelled seasonality, hotel tiers, and real package board levels for 4,438 coastal destinations. They are labelled as estimates on every surface that shows them, and the site links out for a live quote rather than pretending to have one. Median absolute error against collected anchors is ~20% (hotels) and ~22% (packages). - **Safety** is the union of US State Department and UK FCDO advisories plus World Bank homicide data, keyed by country. - **Quality** per trip type comes from measured infrastructure — beach and resort density, ski lift capital, dive operators, protected-area proximity, built heritage, theme parks — swept from OpenStreetMap, not from editorial opinion. ## Known limitations, stated plainly - Heritage-derived `culture` ranks OSM *mapping intensity* at the very top of its range, not only heritage. - Hiking and nature still over-favour the United States, because protected-area designation regimes differ far more between countries than hikeability does. - Prices are a model. Treat any single number as ±20%, and the *comparison* between strategies and between months as the trustworthy part. ## Data sources GeoNames (CC BY) for the destination backbone; WorldClim 2.1 for climate normals; NOAA OISST for sea-surface temperature; OpenStreetMap via Overpass (ODbL) for the quality layers; OpenFlights for airports; Natural Earth for coastlines; Wikidata/UNESCO for heritage; US State Department, UK FCDO and the World Bank for safety. Full attributions: https://travelia.net/LICENSE.txt ## Terms Travelia is free to use and **not** free to copy, host or redistribute. Quoting small excerpts with attribution and a link back to travelia.net is explicitly permitted. Bulk extraction of the compiled dataset is not — it is protected as a database compilation, and the upstream open-data layers carry their own terms (notably ODbL on the OpenStreetMap-derived layers). Full terms: https://travelia.net/LICENSE.txt ## More https://travelia.net/privacy/ — every third-party request the site makes, and exactly when. https://travelia.net/LICENSE.txt — terms and full upstream attributions. The methodology, including how the Score is computed, is in the "About" panel on the map itself.