Reference data is fetched on a schedule by a separate process and served from our copy. A request never causes a request upstream. European Central Bank id: ecb publisher: European Central Bank used by: /fx from: https://www.ecb.europa.eu/stats/eurofxref/eurofxref-hist-90d.xml, https://www.ecb.europa.eu/stats/eurofxref/eurofxref-hist.zip refreshed every: 3.0 h outgoing requests today: 2 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:14:00Z (2.9 h ago) terms: Reproduce accurately and name the ECB as source. Reference rates are for information only; use for transactions is strongly discouraged. A paid product must tell buyers the same data is free at the ECB. licence: https://www.ecb.europa.eu/services/using-our-site/disclaimer/html/index.en.html note: Published around 16:00 CET on TARGET business days; snapshot of 14:15 CET. note: EUR/RUB not published since 2022-03-01. note: Polled every 3 hours with conditional requests: 8 a day, of which one brings new data on a business day. Bank of Russia id: cbr publisher: Central Bank of the Russian Federation used by: /fx from: https://www.cbr.ru/scripts/XML_daily.asp, https://www.cbr-xml-daily.ru/daily_utf8.xml (fallback mirror) refreshed every: 3.0 h outgoing requests today: 28 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:14:35Z (2.9 h ago) terms: No explicit licence for the data was found. Official rates are published as public information; terms of the site to be confirmed before launch. licence: https://www.cbr.ru/about/ (no explicit data licence found) terms review: the operator has not yet confirmed these terms in writing; treat reuse with care note: Rates for the next day are usually set the day before. Nager.Date id: nager publisher: Nager.Date open source project used by: /holidays, /time/business-days from: https://date.nager.at/api/v3/PublicHolidays/{year}/{country} refreshed every: 7.0 days outgoing requests today: 613 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:20:10Z (2.8 h ago) terms: Open-source project, no key required. Current licence of the hosted data to be confirmed before launch. licence: https://github.com/nager/Nager.Date/blob/main/LICENSE.md terms review: the operator has not yet confirmed these terms in writing; treat reuse with care note: Transferred working days and regional holidays are covered unevenly; Russia has a manual override file. note: Refreshed weekly, not daily: the data changes a few times a year and a full refresh is about 400 requests. RIPE NCC RIS (BGP origin) and RIPE NCC AS names id: ris publisher: RIPE NCC used by: /ip from: https://www.ris.ripe.net/dumps/riswhoisdump.IPv4.gz, https://www.ris.ripe.net/dumps/riswhoisdump.IPv6.gz, https://ftp.ripe.net/ripe/asnames/asn.txt refreshed every: 24.0 h outgoing requests today: 3 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:33Z (2.7 h ago) terms: Routing data collected by RIPE NCC RIS, freely available; attribution to RIPE NCC. licence: https://www.ripe.net/about-us/legal/ripe-ncc-terms-and-conditions/ terms review: the operator has not yet confirmed these terms in writing; treat reuse with care Regional Internet Registries delegation statistics id: rir publisher: AFRINIC, APNIC, ARIN, LACNIC, RIPE NCC used by: /ip from: https://ftp.ripe.net/pub/stats/ripencc/delegated-ripencc-extended-latest, https://ftp.ripe.net/pub/stats/arin/delegated-arin-extended-latest, https://ftp.ripe.net/pub/stats/apnic/delegated-apnic-extended-latest, https://ftp.ripe.net/pub/stats/lacnic/delegated-lacnic-extended-latest, https://ftp.ripe.net/pub/stats/afrinic/delegated-afrinic-extended-latest refreshed every: 24.0 h outgoing requests today: 5 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:13:42Z (2.9 h ago) terms: Public statistics published by the RIRs. licence: https://www.nro.net/about/rirs/statistics/ note: Country is the country of registration, not the physical location. Public Suffix List id: psl publisher: Mozilla Foundation / publicsuffix.org used by: /net/domain, /net/url from: https://publicsuffix.org/list/public_suffix_list.dat refreshed every: 7.0 days outgoing requests today: 1 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:34Z (2.7 h ago) terms: MPL 2.0. licence: https://mozilla.org/MPL/2.0/ IANA Root Zone TLD list id: iana-tld publisher: IANA used by: /ref/tld, /net/domain from: https://data.iana.org/TLD/tlds-alpha-by-domain.txt refreshed every: 30.0 days outgoing requests today: 1 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:34Z (2.7 h ago) terms: IANA registry data; see IANA licensing terms. licence: https://www.iana.org/help/licensing-terms IANA protocol registries id: iana-registries publisher: IANA used by: /ref/port, /ref/media-type, /ref/http-status, /ref/http-header, /net/ip from: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.csv, https://www.iana.org/assignments/media-types/{type}.csv, https://www.iana.org/assignments/http-status-codes/http-status-codes-1.csv, https://www.iana.org/assignments/http-fields/field-names.csv, https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry-1.csv, https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry-1.csv refreshed every: 30.0 days outgoing requests today: 15 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:38Z (2.7 h ago) terms: IANA registry data; see IANA licensing terms. licence: https://www.iana.org/help/licensing-terms IANA Time Zone Database id: tzdb publisher: IANA used by: /time, /ref/timezone, /sky from: https://data.iana.org/time-zones/tzdb/version refreshed every: 24.0 h outgoing requests today: 1 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:38Z (2.7 h ago) terms: Public domain. licence: https://www.iana.org/time-zones (public domain) note: The rules are bundled with the service (Python tzdata package); the updater only checks whether a newer release exists. CODATA recommended values (NIST) id: codata publisher: NIST Physical Measurement Laboratory used by: /ref/constant from: https://physics.nist.gov/cuu/Constants/Table/allascii.txt refreshed every: 30.0 days outgoing requests today: 1 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:38Z (2.7 h ago) terms: NIST data; attribution to NIST requested. licence: https://www.nist.gov/open/license OurAirports id: ourairports publisher: OurAirports (David Megginson and contributors) used by: /ref/airport from: https://davidmegginson.github.io/ourairports-data/airports.csv refreshed every: 30.0 days outgoing requests today: 1 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:50Z (2.7 h ago) terms: Public domain. IATA codes themselves are an IATA designation. licence: https://ourairports.com/data/ (public domain) U.S. Geological Survey id: usgs publisher: USGS Earthquake Hazards Program used by: /feed/earthquakes from: https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.geojson, https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_day.geojson, https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_week.geojson, https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/2.5_month.geojson refreshed every: 5 min outgoing requests today: 53 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T21:04:13Z (2 min ago) terms: U.S. Government work, public domain. Credit USGS. licence: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits note: The hour feed every 5 minutes, the day feed every 15, the week feed every 30, the 2.5+ month feed hourly: about 460 requests a day. NOAA Space Weather Prediction Center id: swpc publisher: NOAA SWPC used by: /feed/space-weather from: https://services.swpc.noaa.gov/products/noaa-planetary-k-index.json, https://services.swpc.noaa.gov/products/noaa-planetary-k-index-forecast.json, https://services.swpc.noaa.gov/json/rtsw/rtsw_wind_1m.json, https://services.swpc.noaa.gov/json/rtsw/rtsw_mag_1m.json, https://services.swpc.noaa.gov/json/goes/primary/xray-flares-latest.json, https://services.swpc.noaa.gov/products/noaa-scales.json refreshed every: 15 min outgoing requests today: 66 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T20:54:12Z (12 min ago) terms: U.S. Government work, public domain. Credit NOAA SWPC. licence: https://www.weather.gov/disclaimer note: Six files every 15 minutes: about 576 conditional requests a day. CelesTrak id: celestrak publisher: CelesTrak (T.S. Kelso) used by: /sky/satellite from: https://celestrak.org/NORAD/elements/gp.php?GROUP=stations&FORMAT=tle, https://celestrak.org/NORAD/elements/gp.php?GROUP=visual&FORMAT=tle refreshed every: 24.0 h outgoing requests today: 2 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:53Z (2.7 h ago) terms: Orbital elements derived from public US Space Force data. The usage policy (read 2026-09-16) sets no restriction on reuse; it requires documented query forms, downloading no more often than the data updates (GP data: every 2 hours), and stopping immediately on any non-200 response. This service fetches once a day and does not retry HTTP errors. licence: https://celestrak.org/usage-policy.php note: Positions are computed here from the elements; raw element sets are not served. Unicode Security Mechanisms (UTS #39) confusables id: confusables publisher: Unicode, Inc. used by: /text/confusables from: https://www.unicode.org/Public/security/latest/confusables.txt refreshed every: 30.0 days outgoing requests today: 1 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:51Z (2.7 h ago) terms: Unicode License v3: permissive, keep the copyright notice. licence: https://www.unicode.org/license.txt EFF large wordlist id: eff-wordlist publisher: Electronic Frontier Foundation used by: /random/passphrase from: https://www.eff.org/files/2016/07/18/eff_large_wordlist.txt refreshed every: 90.0 days outgoing requests today: 1 (conditional; most end as 304 without transferring data) status: ok, retrieved 2026-09-16T18:23:51Z (2.7 h ago) terms: CC BY 3.0 US; attribution to EFF. licence: https://creativecommons.org/licenses/by/3.0/us/ Data bundled with software libraries (updated when the service is redeployed): pycountry / Debian iso-codes: ISO 3166 countries and subdivisions, ISO 639 languages, ISO 4217 currency names and numbers. https://salsa.debian.org/iso-codes-team/iso-codes (LGPL-2.1) built-in table in svc/lib/currency.py: ISO 4217 minor units (how many decimal places a currency has). a list of facts maintained by hand, checked against the ISO 4217 publication Python tzdata package: IANA timezone rules. https://github.com/python/tzdata (Apache-2.0 packaging, public-domain data) phonenumbers (libphonenumber): Telephone numbering plans, E.164. https://github.com/google/libphonenumber (Apache-2.0) ua-parser regexes: User agent parsing rules. https://github.com/ua-parser/uap-core (Apache-2.0) Outgoing requests today, all sources together: 794. The volume does not depend on incoming traffic: a user request never causes a request upstream, and each source has a daily budget that stops a runaway job. If you republish values, carry the source line with them. ECB terms also ask that users of a paid product be told the data is free at the ECB. # type: computed