efax.com
Link authority for efax.com (registrable domain: efax.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 efax.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 efax.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 efax.com presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://efax.com.
| Title | Fax Online with eFax | Secure, Scalable, Enterprise Cloud Fax |
|---|---|
| Description | eFax provides secure, scalable, enterprise-grade cloud faxing with HIPAA, HITRUST, and SOC compliance. Send and receive faxes from any device—computer, tablet, or smartphone. |
| OG Title | Fax Online with eFax | Secure, Scalable, Enterprise Cloud Fax |
| OG Description | eFax provides secure, scalable, enterprise-grade cloud faxing with HIPAA, HITRUST, and SOC compliance. Send and receive faxes from any device—computer, tablet, or smartphone. |
| OG Site Name | eFax |
| 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.
| efax (business) | |
| efaxonline | |
| X | efax |
| Youtube | efax |
| Googleplay | com.consensus.efax |
Structured data (JSON-LD)
The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: WebPage, ImageObject, BreadcrumbList, WebSite, Organization, FAQPage.
JSON-LD block (2,549 bytes)
{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.efax.com\/","url":"https:\/\/www.efax.com\/","name":"Fax Online with eFax | Secure, Scalable, Enterprise Cloud Fax","isPartOf":{"@id":"https:\/\/www.efax.com\/#website"},"about":{"@id":"https:\/\/www.efax.com\/#organization"},"primaryImageOfPage":{"@id":"https:\/\/www.efax.com\/#primaryimage"},"image":{"@id":"https:\/\/www.efax.com\/#primaryimage"},"thumbnailUrl":"https:\/\/www.efax.com\/wp-content\/uploads\/2024\/03\/Whitepaper-1.svg","datePublished":"2025-08-05T20:55:38+00:00","dateModified":"2026-07-14T18:47:07+00:00","description":"eFax provides secure, scalable, enterprise-grade cloud faxing with HIPAA, HITRUST, and SOC compliance. Send and receive faxes from any device—computer, tablet, or smartphone.","breadcrumb":{"@id":"https:\/\/www.efax.com\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.efax.com\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.efax.com\/#primaryimage","url":"https:\/\/www.efax.com\/wp-content\/uploads\/2024\/03\/Whitepaper-1.svg","contentUrl":"https:\/\/www.efax.com\/wp-content\/uploads\/2024\/03\/Whitepaper-1.svg","width":76,"height":81},{"@type":"BreadcrumbList","@id":"https:\/\/www.efax.com\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home"}]},{"@type":"WebSite","@id":"https:\/\/www.efax.com\/#website","url":"https:\/\/www.efax.com\/","name":"eFax","description":"Fax Online with eFax - The World's #1 Best Online Fax Service","publisher":{"@id":"https:\/\/www.efax.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.efax.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.efax.com\/#organization","name":"eFax","url":"https:\/\/www.efax.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.efax.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.efax.com\/wp-content\/uploads\/2024\/03\/eFax-logo.svg","contentUrl":"https:\/\/www.efax.com\/wp-content\/uploads\/2024\/03\/eFax-logo.svg","caption":"eFax"},"image":{"@id":"https:\/\/www.efax.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/efaxonline","https:\/\/x.com\/efax","https:\/\/www.youtube.com\/user\/efax","https:\/\/www.trustpilot.com\/review\/www.efax.com"]}]}JSON-LD block (1,633 bytes)
{
"@context": "https://schema.org",
"@type": "Organization",
"@id": "https://www.efax.com/#organization",
"name": "eFax",
"url": "https://www.efax.com/",
"logo": {
"@type": "ImageObject",
"url": "https://www.efax.com/wp-content/uploads/2024/03/eFax-logo.svg"
},
"description": "The global leader in secure, scalable, enterprise cloud faxing solutions. eFax provides HIPAA-compliant digital fax services for businesses and individuals.",
"contactPoint": [
{
"@type": "ContactPoint",
"name": "Consumer Support",
"telephone": "+1-800-878-7151",
"email": "help@mail.efax.com",
"contactType": "customer service",
"areaServed": "US",
"availableLanguage": "English",
"description": "For general inquiries. Check out our Help Center if you think your question might have an easy answer."
},
{
"@type": "ContactPoint",
"name": "Enterprise Support",
"telephone": [
"+1-323-817-3202",
"+1-800-810-2641"
],
"email": "corporatesupport@mail.efax.com",
"contactType": "technical support",
"contactOption": "TollFree",
"areaServed": "US",
"availableLanguage": "English"
}
],
"sameAs": [
"https://www.facebook.com/eFax",
"https://twitter.com/eFax",
"https://www.linkedin.com/showcase/efax-corporate",
"https://www.youtube.com/efax"
],
"parentOrganization": {
"@type": "Corporation",
"name": "Consensus Cloud Solutions, Inc.",
"tickerSymbol": "NASDAQ:CCSI",
"url": "https://www.consensus.com/"
}
}
JSON-LD block (1,740 bytes)
{"@context":"https:\/\/schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Can I send a fax online?","acceptedAnswer":{"@type":"Answer","text":"\n<p class=\"wp-block-paragraph\">eFax provides a host of convenient ways to send a fax online: via email, <a href=\"\/how-to\/fax-from-phone\">smartphone<\/a>, with the mobile app, or using your online account on the eFax website. eFax works with all major computer files, <a href=\"\/how-to\/fax-a-pdf\">including PDF<\/a>, TIFF, DOC, and PNG.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n"}},{"@type":"Question","name":"How secure is faxing over the internet?","acceptedAnswer":{"@type":"Answer","text":"\n<p class=\"wp-block-paragraph\">Online faxing, particularly with platforms like eFax, is highly secure as compared to <a href=\"\/blog\/what-is-a-fax-machine\">fax machines<\/a>, be it for sending <a href=\"\/how-to\/fax-irs-forms\">tax forms<\/a> or any other confidential documents. eFax employs robust encryption measures to ensure the confidentiality and security of transmitted documents. Furthermore, strict access controls, including two-factor authentication, are in place to limit access to unauthorized users.<\/p>\n"}},{"@type":"Question","name":"Why is eFax the best online fax service?","acceptedAnswer":{"@type":"Answer","text":"\n<p class=\"wp-block-paragraph\">Millions of users rely on eFax for their digital faxing needs, drawn by our two-decade legacy as the world\u2019s leading online fax service. Our reputation is solidified through the trust of Fortune 500 corporations and thriving small businesses globally. eFax facilitates efficient online faxing and provides HIPAA-compliant plans tailored to regulated industries.<\/p>\n"}}]}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 efax.com and domain-level for efax.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 efax.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 960; 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 efax.com specifically, ranked by the linker's PageRank. The table shows the top 63; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.