whatisrpm.com

Trust, itemized

The source register

Reviewed08·2026

This site does not have a methodology page. It has this: every primary source used anywhere on the site, listed per wing, with its retrieval date and the refresh cadence for its data class. If a number appears on a page, its chip points here.

By Oliver Wakefield-Smith. Oliver Wakefield-Smith, Digital Signet.

How to read this register

Everything below is primary. Revenue shares are taken from network help pages, entry thresholds from network requirement pages, unit definitions from ISO, BIPM and NIST, healthcare coverage from CMS and HHS, and appliance or drive speeds from manufacturer spec sheets. Blog aggregators and forum figures never make the table, which is also why three vendors you might expect numbers for have none: Monumetric, SHE Media and Freestar publish neither revenue shares nor typical RPMs, so their pages show a literal "not published" chip where a figure would go rather than a rate this site invented on their behalf.

Each row carries the month the source was retrieved, each citation chip on a page carries the same date, and the odometer stamp in every page header shows the last review pass. When a source moves, the chip and the claim it supports change together, and any change that touches published content gets a dated entry in the corrections log. The per-wing notes below state how often each class of data gets re-checked.

Revenue wing

Network thresholds and revenue shares: re-checked quarterly and whenever a network announces a program change. The Ezoic Ad Revenue Index is a live dated series; pages cite the series, not a frozen copy.

SourceURLRetrieved
Google AdSense Help: Page RPMsupport.google.com/adsense/answer/1905152026-08-01
Google AdSense Help: revenue sharesupport.google.com/adsense/answer/1801952026-08-01
Google AdSense Help: eligibilitysupport.google.com/adsense/answer/97242026-08-01
Google AdSense Help: optimizationsupport.google.com/adsense/answer/179572026-08-01
YouTube Help: RPM vs CPMsupport.google.com/youtube/answer/93143572026-08-01
YouTube Help: Partner Program basicssupport.google.com/youtube/answer/728572026-08-01
Google Ads Help: CPM definitionsupport.google.com/google-ads/answer/63102026-08-01
Mediavine: requirements for new publisherswww.mediavine.com/mediavine-requirements-for-new-publishers2026-08-01
Mediavine Help: revenue sharehelp.mediavine.com/revenue-share2026-08-01
Mediavine: Journey programwww.mediavine.com/journey2026-08-01
Mediavine blog: seasonality explainerswww.mediavine.com/blog2026-08-01
Raptive: creators (requirements)raptive.com/creators2026-08-01
Raptive Help: FAQs (revenue share, payments)help.raptive.com/hc/en-us/articles/360031181471-Raptive-FAQs2026-08-01
Ezoic: Levels programwww.ezoic.com/levels2026-08-01
Ezoic: what is EPMVwww.ezoic.com/what-is-epmv2026-08-01
Ezoic Ad Revenue Index (dated series)www.ezoic.com/ad-revenue-index2026-08-01
Monumetric: published program termswww.monumetric.com2026-08-01
SHE Media: eligibility criteriawww.shemedia.com2026-08-01
Freestar: publisher criteriafreestar.com2026-08-01
Cloudflare blog: introducing pay per crawlblog.cloudflare.com/introducing-pay-per-crawl2026-08-01
TollBit content licensing marketplacetollbit.com2026-08-01

Machines wing

Standards and physics: re-checked annually; these barely move. Manufacturer spec rows in the typical-RPM and appliance tables: re-checked annually against current model listings.

SourceURLRetrieved
ISO 80000-3 (space and time quantities)www.iso.org/standard/64974.html2026-08-01
BIPM SI Brochurewww.bipm.org/en/publications/si-brochure2026-08-01
NIST: units outside the SIphysics.nist.gov/cuu/Units/outside.html2026-08-01
Britannica: tachometerwww.britannica.com/technology/tachometer2026-08-01
Britannica: internal-combustion enginewww.britannica.com/technology/internal-combustion-engine2026-08-01
Britannica: diesel enginewww.britannica.com/technology/diesel-engine2026-08-01
US DOE AFDC: diesel vehiclesafdc.energy.gov/vehicles/diesel2026-08-01
fueleconomy.gov: driving more efficientlywww.fueleconomy.gov/feg/driveHabits.jsp2026-08-01
NHTSA recall lookupwww.nhtsa.gov/recalls2026-08-01
US DOE: how do wind turbines workwww.energy.gov/eere/wind/how-do-wind-turbines-work2026-08-01
Seagate HDD datasheetswww.seagate.com2026-08-01
Western Digital HDD datasheetswww.westerndigital.com2026-08-01
Bosch Home UK: washing machine specswww.bosch-home.co.uk2026-08-01
AEG UK: washing machine specswww.aeg.co.uk2026-08-01
Engineering ToolBox: rotation and speed relationswww.engineeringtoolbox.com2026-08-01
FIA Formula One technical regulationswww.fia.com/regulation/category/1102026-08-01

Healthcare wing

CMS-dependent figures refresh with each Physician Fee Schedule final rule, effective 1 January each year. Dollar rates are looked up, never memorized: the pages link the PFS lookup rather than restating rates that expire.

SourceURLRetrieved
HHS telehealth.hhs.gov: remote patient monitoringtelehealth.hhs.gov/providers/best-practice-guides/telehealth-and-remote-patient-monitoring2026-08-01
CMS Physician Fee Schedule lookupwww.cms.gov/medicare/physician-fee-schedule/search2026-08-01

Packages wing

Project documentation: re-checked annually; command syntax is verified against current distro docs.

SourceURLRetrieved
rpm.org: RPM Package Managerrpm.org2026-08-01
Fedora quick docs: dnf and rpmdocs.fedoraproject.org/en-US/quick-docs2026-08-01