jouleio.com
Link authority for jouleio.com (registrable domain: jouleio.com) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.
Web-graph authority (0-100)
Domain scores measure jouleio.com as a whole: every subdomain's links rolled up into one node of Common Crawl's domain-level web graph. Host scores measure the exact hostname jouleio.com. WWW scores cover the www variant of that hostname, which the graph tracks as its own entry since January 2026 (before that, www and bare host were merged). A big gap between domain and host usually means the domain's authority lives on other subdomains. PageRank is link-endorsement authority: how much weight the sites linking here carry themselves. Harmonic centrality measures reach: how close this site sits to the rest of the web when following links, which favors broadly connected sites over ones boosted by a few heavy linkers. All are normalized 0 to 100 within each crawl snapshot; a dash means that series does not exist for this site.
Homepage
What jouleio.com presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://jouleio.com.
| Title | Energy Cost & Joule Calculator 2026: Solar, EV, kWh Tools |
|---|---|
| Description | Free energy cost and joule calculator hub for 2026: joules to kWh, watts to joules, solar savings, electricity bills, TOU rates, EV charging, battery health, peak shaving, EIA rates and no signup. |
| OG Title | Energy Cost & Joule Calculator 2026: Solar, EV, kWh Tools |
| OG Description | Estimate electricity bills, TOU rate plans, appliance costs, solar savings, EV charging, heat pumps, and home energy upgrades with EIA-backed tools. |
| Twitter Title | JouleIO — Free Energy & Solar Calculators |
| Twitter Card | summary_large_image |
Social accounts and contact points
Where this site maintains a presence and every reachable route its homepage exposes: social accounts, contact pages, addresses, and content feeds.
Structured data (JSON-LD)
The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: Organization, WebSite, FAQPage, ItemList, Dataset, BreadcrumbList.
JSON-LD block (1,411 bytes)
{"@context":"https://schema.org","@type":"Organization","@id":"https://jouleio.com/#organization","name":"JouleIO","alternateName":["Joule.io","JouleIO Energy Calculator"],"url":"https://jouleio.com/","logo":{"@type":"ImageObject","url":"https://jouleio.com/og-image.png","width":1200,"height":630},"image":"https://jouleio.com/og-image.png","description":"Free solar, EV, and home energy calculators using EIA-backed electricity-rate baselines, city solar inputs, and transparent assumptions. Calculate electricity bills, solar savings, EV charging costs, home electrification ROI, carbon footprint, and heat pump payback.","email":"contact@jouleio.com","contactPoint":{"@type":"ContactPoint","contactType":"customer support","email":"contact@jouleio.com","availableLanguage":["en"]},"knowsAbout":["Solar panel savings","Home electrification","EV charging cost","Electricity bill estimation","Solar payback period","Heat pump ROI","Home energy audit","Carbon footprint calculation","Appliance energy consumption","Utility rate analysis","Solar roof sizing","Solar battery cost","Wind energy residential"],"areaServed":{"@type":"Country","name":"United States"},"foundingDate":"2025","publishingPrinciples":"https://jouleio.com/editorial-guidelines/","brand":{"@type":"Brand","name":"Jouleio","slogan":"Free energy cost and electricity rate calculator using EIA data","logo":"https://jouleio.com/og-image.png"}}JSON-LD block (211 bytes)
{"@context":"https://schema.org","@type":"WebSite","@id":"https://jouleio.com/#website","name":"JouleIO","url":"https://jouleio.com/","publisher":{"@id":"https://jouleio.com/#organization"},"inLanguage":"en-US"}JSON-LD block (1,449 bytes)
{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is JouleIO?","acceptedAnswer":{"@type":"Answer","text":"JouleIO is a free collection of 28 solar, energy, and EV calculators. Convert joules, estimate solar savings, calculate LCOE, compare TOU electricity rates, compare EV charging, estimate EV battery health, and measure carbon footprint in your browser."}},{"@type":"Question","name":"How accurate are the energy estimates?","acceptedAnswer":{"@type":"Answer","text":"Our calculators use EIA electricity rates, SEIA solar data, and EPA emission factors. Results are planning estimates."}},{"@type":"Question","name":"What official data sources does JouleIO use?","acceptedAnswer":{"@type":"Answer","text":"JouleIO uses EIA electricity data, NREL PVWatts solar assumptions, BLS household energy price context, EPA greenhouse gas equivalencies, and DOE Energy Saver guidance. The current homepage electricity-rate baseline is 18.56 cents per kWh for EIA 2026-03."}},{"@type":"Question","name":"Is my data private?","acceptedAnswer":{"@type":"Answer","text":"Yes. All calculations happen locally in your browser. Your energy data never leaves your device."}},{"@type":"Question","name":"Which calculator should I start with?","acceptedAnswer":{"@type":"Answer","text":"Try the Solar Savings Calculator to see if solar makes sense, or the Electric Bill Estimator to understand your current costs."}}]}JSON-LD block (463 bytes)
{"@context":"https://schema.org","@type":"WebSite","@id":"https://jouleio.com/#website","name":"JouleIO","url":"https://jouleio.com/","description":"Free online calculators for solar panels, energy costs, carbon footprint, wind energy, and electric vehicles.","publisher":{"@id":"https://jouleio.com/#organization"},"potentialAction":{"@type":"SearchAction","target":"https://jouleio.com/?q={search_term_string}","query-input":"required name=search_term_string"}}JSON-LD block (328 bytes)
{"@context":"https://schema.org","@type":"Organization","@id":"https://jouleio.com/#organization","name":"JouleIO","url":"https://jouleio.com/","logo":"https://jouleio.com/favicon.svg","description":"Free energy cost calculators, solar panel savings estimators, and EV charging tools.","email":"support@jouleio.com","sameAs":[]}Authority over time
Every Common Crawl web-graph release since 2017, roughly quarterly. The domain series goes back to 2017; Common Crawl only began publishing the host-level graph in 2020, so host lines start there. Click a legend entry to show or hide that line. Flat lines are normal for established sites; watch for sustained rises or drops, which track real gains or losses in who links here.
A note on www: through the end of 2025 the source web graph merged www and non-www hostnames into the bare name, so one host line covers both. Starting in January 2026 the graph splits them into separate entries, which is why www can carry its own scores going forward.
Backlink counts
Unique linking domains seen in Common Crawl's link graphs. This is a different dataset than the 0-100 authority scores above: these are raw counts, host-level for jouleio.com and domain-level for jouleio.com with all its subdomains combined. Common Crawl covers a large sample of the web, not all of it, so treat counts as comparable between sites rather than absolute totals.
Top backlinks in the domain graph
Common Crawl publishes two link graphs. The DOMAIN graph connects whole domains: every link from any page of one domain to any page of another. This table shows the highest-authority domains linking to jouleio.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 10; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.
| Linking Site | Linker PageRank | Linker Harmonic Centrality |
|---|---|---|
| admyurl.com | 38 | 33 |
| eyesift.com | 25 | 17 |
| calorique.io | 20 | 17 |
| amortio.com | 13 | 17 |
| hammerio.com | 9 | 17 |
| levyio.com | 9 | 17 |
| backlynk.io | 9 | 17 |
| salario.io | 9 | 13 |
| bytepane.com | 8 | 17 |
| degreecalc.com | 8 | 17 |
Top backlinks in the host graph
The HOST graph connects exact hostnames, so subdomains count separately. This table shows the highest-authority hosts linking to jouleio.com specifically, ranked by the linker's PageRank. The table shows the top 10; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.
| Linking Site | Linker PageRank | Linker Harmonic Centrality |
|---|---|---|
| calorique.io | 22 | 10 |
| www.admyurl.com | 21 | 14 |
| www.amortio.com | 21 | 14 |
| hammerio.com | 19 | 12 |
| degreecalc.com | 19 | 11 |
| www.eyesift.com | 17 | 13 |
| backlynk.io | 8 | 14 |
| levyio.com | 8 | 12 |
| salario.io | 8 | 10 |
| bytepane.com | 7 | 10 |