span.io
Link authority for span.io (registrable domain: span.io) 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 span.io 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 span.io. 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 span.io presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://span.io.
| Title | SPAN® | Smart Electrical Panels |
|---|---|
| Description | Lower your energy bill with SPAN smart electrical panels - advanced features and intelligent design save you money and energy. |
| OG Title | SPAN® | Smart Electrical Panels |
| OG Description | Lower your energy bill with SPAN smart electrical panels - advanced features and intelligent design save you money and energy. |
| Twitter Title | SPAN® | Smart Electrical Panels |
| 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.
| Youtube | UClLe-YG5QZKFJAlJhwdYPGA (channel) |
|---|---|
| get.SPAN | |
| get_span | |
| X | span_io |
| spanio (business) | |
| Tiktok | span.io |
| Span-100114435667344 |
Structured data (JSON-LD)
The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: FAQPage.
JSON-LD block (6,786 bytes)
{
"@context": "https://www.span.io/panel",
"@type": "FAQPage",
"mainEntity": [{
"@type": "Question",
"name": "What is SPAN Panel?",
"acceptedAnswer": {
"@type": "Answer",
"text": "<p>SPAN Panel is a smart electrical panel designed to modernize your home energy system by completely replacing your existing panel.</p><p>With SPAN, you can control and monitor every circuit in your home from a smartphone or tablet, understand how your home is sourcing, storing, and using energy in real time, and modernize your home with electrification upgrades like solar and battery storage.</p>"
}
}, {
"@type": "Question",
"name": "Why is SPAN more expensive than other electrical panels?",
"acceptedAnswer": {
"@type": "Answer",
"text": "<p>Unlike a traditional electrical panel, SPAN Panel gives you circuit-level control and provides actionable insights into how energy is being used in your home. With the SPAN Home app, you get real-time insight into which circuits and appliances are consuming the most energy, as well as the ability to shut off any circuit in the home at a moment’s notice—even when you’re away.</p><p>When paired with solar and battery storage, SPAN makes your home more self-reliant and helps you endure even the most severe power outages by enabling more flexible backup. With SPAN, you can extend your backup duration by powering only the circuits you need during an outage, and none of the ones you don’t.</p><p>Finally, SPAN Panel enables high-value electrification upgrades (induction stoves, heat pumps, EV chargers, etc.) that help you move away from gas appliances and prepare your home for an all-electric future.</p>"
}
}, {
"@type": "Question",
"name": "Which solar & storage systems work with SPAN?",
"acceptedAnswer": {
"@type": "Answer",
"text": "<p>SPAN can be paired with any grid-tied solar inverter for solar monitoring. The solar inverter must be fed into your SPAN Panel via a breaker to allow for solar production monitoring when a backup system isn’t present.</p><p>SPAN is currently compatible with the following battery storage systems:</p><ul><li>LG Chem RESU and SolarEdge Energy Bank (with SolarEdge Energy Hub Backup Interface)</li><li>Tesla Powerwall and Powerwall+ (with Backup Gateway 1, Backup Gateway 2, or Backup Switch)</li></ul><p>SPAN is also compatible with gas-powered backup generators <i>with limited functionality.</i></p><p>If a storage system is not listed above, SPAN is not currently compatible with it; we are continually working to expand our integrations and plan to support a growing number of storage systems in the future. For more information on compatibility with SPAN, visit our <a href=https://support.span.io/hc/en-us/articles/4412059545111-What-Solar-Storage-Systems-is-SPAN-compatible-with-?_ga=2.17597241.1202361422.1658042732-1590344315.1658042732#h_01FKGJ3BNJTDH9E5G5135PAYEN/>Support</a> page.</p>"
}
}, {
"@type": "Question",
"name": "How can I get SPAN?",
"acceptedAnswer": {
"@type": "Answer",
"text": "If you think SPAN is right for your home, click the ‘Get SPAN' button at the top of the page to fill out our interest form and submit your information to start the process; a member of our sales team will be in touch to discuss your project needs and next steps. If you have additional questions in the meantime, check out our <a href=https://support.span.io/hc/en-us/articles/4410667562903-How-can-I-get-SPAN-?_ga=2.114272007.1202361422.1658042732-1590344315.1658042732>FAQ</a>."
}
}, {
"@type": "Question",
"name": "How can SPAN Panel help me avoid an electrical service upgrade?",
"acceptedAnswer": {
"@type": "Answer",
"text":"<p>Most older homes weren’t designed to support the increasing energy needs tied to modern lifestyles. Following traditional installation approaches that assume all appliances are drawing power at the same time, many homeowners discover they can’t add EV chargers or other appliances with high power consumption without first performing costly and time-consuming electrical service upgrades. Our friends at Rewiring America have provided <a href=https://www.rewiringamerica.org/circuit-breakers-the-grid>a great overview</a> on this phenomenon.</p><p>SPAN is a certified Energy Management System that works behind the scenes to monitor electrical loads throughout the home, automatically pausing pre-selected circuits on rare occurrences when total consumption temporarily exceeds the home’s maximum electrical capacity (until other loads cycle off and total consumption drops). Today, this functionality is available primarily for EV charger loads.</p>"
}
}, {
"@type": "Question",
"name": "Does SPAN Panel require an internet connection?",
"acceptedAnswer": {
"@type": "Answer",
"text":"<p>Yes—an internet connection is required to control SPAN, monitor energy usage data with the SPAN Home app, and receive new features via free over-the-air software updates.</p><p>SPAN Panel contains an internet-connected gateway that connects via ethernet and Wi-Fi. In the case of an internet outage, SPAN Panel automatically switches to a cellular backup connection when available.</p><p>(NOTE: Cellular backup should not be relied on as a primary mode of connectivity and may not be available in areas where cellular service is poor.)</p>"
}
}, {
"@type": "Question",
"name": "Do I need more than one SPAN Panel?",
"acceptedAnswer": {
"@type": "Answer",
"text":"<p>If your home has more than 32 circuits or a utility service above 200A (or if you have multiple properties), more than one SPAN Panel may be required to accommodate your needs.</p><p>We’re excited to build out additional functionality for customers with multiple SPAN Panels via free over-the-air updates. Review our <a href=https://support.span.io/hc/en-us/articles/4411635811479-What-if-I-need-more-than-one-SPAN-Panel-?_ga=2.106786563.1202361422.1658042732-1590344315.1658042732>multi-panel FAQ</a> for considerations regarding the current multi-panel experience.</p>"
}
}, {
"@type": "Question",
"name": "I’m located outside the United States. Can I get SPAN?",
"acceptedAnswer": {
"@type": "Answer",
"text":"Today, SPAN is only available in the U.S. (in all 50 states). If you are located outside of the U.S., please keep an eye out for future announcements as we continue to grow."
}
}]
}
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 span.io and domain-level for span.io 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 span.io (including its subdomains), ranked by the linker's PageRank. The table shows the top 473; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.
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 span.io specifically, ranked by the linker's PageRank. The table shows the top 70; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.