Site Information
sumac.com
Link authority for sumac.com (registrable domain: sumac.com) from the Common Crawl web graph: PageRank and harmonic centrality history since 2017, current scores, and the site's top backlink sources.
Link authority data (PageRank, harmonic centrality) and backlinks come from the Common Crawl web graph.
Current Scores
Web-graph authority (0-100)
Domain scores measure sumac.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 sumac.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.
18
Domain PageRank
7
Host PageRank
-
WWW PageRank
95
Domain Harmonic Centrality
94
Host Harmonic Centrality
-
WWW Harmonic Centrality
Site Intelligence
Homepage
What sumac.com presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://sumac.com.
| Title | Sumac | #1 Nonprofit Case Management Software |
|---|---|
| Description | Empower your mission with nonprofit case management software that helps you better manage programs, serve clients, and deliver impact. |
| OG Title | Sumac | #1 Nonprofit Case Management Software |
| OG Description | Empower your mission with nonprofit case management software that helps you better manage programs, serve clients, and deliver impact. |
| OG Site Name | Societ |
| Twitter Title | Sumac | #1 Nonprofit Case Management Software |
| Twitter Card | summary_large_image |
Site Intelligence
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.
| societ (business) | |
| Youtube | UCWSsQZjwu0fXjRuR-FWB1Dg (channel) |
| Societinc | |
| X | SocietInc |
Site Intelligence
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, SoftwareApplication, FAQPage.
JSON-LD block (3,101 bytes)
{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.societ.com\/solutions\/case-management\/sumac\/","url":"https:\/\/www.societ.com\/solutions\/case-management\/sumac\/","name":"Sumac | #1 Nonprofit Case Management Software","isPartOf":{"@id":"https:\/\/www.societ.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.societ.com\/solutions\/case-management\/sumac\/#primaryimage"},"image":{"@id":"https:\/\/www.societ.com\/solutions\/case-management\/sumac\/#primaryimage"},"thumbnailUrl":"https:\/\/www.societ.com\/wp-content\/uploads\/2025\/05\/sumac-nonprofit-case-management-software.png","datePublished":"2025-06-30T21:21:29+00:00","dateModified":"2026-07-16T12:29:16+00:00","description":"Empower your mission with nonprofit case management software that helps you better manage programs, serve clients, and deliver impact.","breadcrumb":{"@id":"https:\/\/www.societ.com\/solutions\/case-management\/sumac\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.societ.com\/solutions\/case-management\/sumac\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.societ.com\/solutions\/case-management\/sumac\/#primaryimage","url":"https:\/\/www.societ.com\/wp-content\/uploads\/2025\/05\/sumac-nonprofit-case-management-software.png","contentUrl":"https:\/\/www.societ.com\/wp-content\/uploads\/2025\/05\/sumac-nonprofit-case-management-software.png","width":4062,"height":2904,"caption":"Sumac Nonprofit Case Management Software"},{"@type":"BreadcrumbList","@id":"https:\/\/www.societ.com\/solutions\/case-management\/sumac\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Solutions","item":"https:\/\/www.societ.com\/solutions\/"},{"@type":"ListItem","position":2,"name":"Case Management","item":"https:\/\/www.societ.com\/solutions\/case-management\/"},{"@type":"ListItem","position":3,"name":"CASE MANAGEMENT SOFTWARE"}]},{"@type":"WebSite","@id":"https:\/\/www.societ.com\/#website","url":"https:\/\/www.societ.com\/","name":"Societ","description":"Do More Good.","publisher":{"@id":"https:\/\/www.societ.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.societ.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.societ.com\/#organization","name":"Societ","alternateName":"Societ","url":"https:\/\/www.societ.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.societ.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.societ.com\/wp-content\/uploads\/2023\/09\/cropped-Societ_Ltkgreen_Icon_Full_Color_RGB_1080px@72ppi-e1712264589400.png","contentUrl":"https:\/\/www.societ.com\/wp-content\/uploads\/2023\/09\/cropped-Societ_Ltkgreen_Icon_Full_Color_RGB_1080px@72ppi-e1712264589400.png","width":412,"height":412,"caption":"Societ"},"image":{"@id":"https:\/\/www.societ.com\/#\/schema\/logo\/image\/"}}]}JSON-LD block (1,010 bytes)
{
"@context": "https://schema.org",
"@type": "SoftwareApplication",
"name": "Sumac",
"description": "Empower your mission with nonprofit case management software that helps you better manage programs, serve clients, and deliver impact.",
"image": "https://www.societ.com/wp-content/uploads/2025/07/Sumac-Logo.png",
"url": "https://www.societ.com/solutions/case-management/sumac/",
"applicationCategory": "BusinessApplication",
"operatingSystem": "Web",
"aggregateRating": {
"@type": "AggregateRating",
"ratingValue": "4.4",
"ratingCount": "128",
"bestRating": "5",
"worstRating": "1",
"author": {
"@type": "Organization",
"name": "Capterra",
"url": "https://www.capterra.com/p/144095/Sumac/"
}
},
"offers": {
"@type": "Offer",
"price": "179.00",
"priceCurrency": "USD",
"availability": "https://schema.org/InStock",
"itemCondition": "https://schema.org/NewCondition",
"url": "https://www.societ.com/get-a-demo"
}
}
JSON-LD block (197 bytes)
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "Societ",
"url": "https://societ.com",
"logo": "https://www.societ.com/wp-content/uploads/2025/07/Societ-Logo.png"
}
JSON-LD block (1,437 bytes)
{"@context":"https:\/\/schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Data is scattered across multiple sources","acceptedAnswer":{"@type":"Answer","text":"<p>When information lives in separate systems, it\u2019s hard to see the full picture and stay organized. <b data-stringify-type=\"bold\">Sumac<\/b>\u00a0brings everything together \u2014 case management, donations, memberships, grants, and volunteers \u2014 so you can manage your entire nonprofit from a single platform and focus on what matters most.<\/p>"}},{"@type":"Question","name":"Software doesn\u2019t fit your unique mission","acceptedAnswer":{"@type":"Answer","text":"<p>Most tools force your programs into rigid templates that don\u2019t reflect your work.\u00a0<b data-stringify-type=\"bold\">Sumac<\/b>\u00a0adapts to your nonprofit\u2019s unique data, workflows, and programs \u2014 so you can capture what matters, support your mission, and run operations your way.<\/p>"}},{"@type":"Question","name":"Cumbersome reporting makes it hard to show impact.","acceptedAnswer":{"@type":"Answer","text":"<p>When reporting feels like a manual, last-minute scramble, it\u2019s harder to demonstrate your results and secure funding. With centralized, customized data and flexible reporting tools,\u00a0<b data-stringify-type=\"bold\">Sumac<\/b> helps you quickly measure outcomes, share progress, and highlight your impact with confidence.<\/p>"}}]}JSON-LD block (13,584 bytes)
{"@context":"https:\/\/schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"","acceptedAnswer":{"@type":"Answer","text":""}},{"@type":"Question","name":"1. Is Sumac easy to use?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Yep \u2014 super easy! Sumac was designed to feel intuitive and simple right out of the box.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p><p><span style=\"font-weight: 400;\">You won\u2019t get lost in menus or overwhelmed by complexity, and if you ever need a hand, our on-demand training is here to help.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p><p><span style=\"font-weight: 400;\">We\u2019ll even customize it so it feels like it was built just for you.<\/span><\/p>"}},{"@type":"Question","name":"2. Does Sumac include customer support?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">You bet! And it\u2019s free.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p><p><span style=\"font-weight: 400;\">While others might charge you extra or send you chasing bots, we connect you directly with real, friendly humans \u2014 no waiting, no nonsense.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><\/p><p><span style=\"font-weight: 400;\">Our live phone support is included in every plan, because helping you succeed is part of the deal.<\/span><\/p>"}},{"@type":"Question","name":"3. Does Sumac integrate with other software?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Absolutely.<\/span><\/p><p><span style=\"font-weight: 400;\">Sumac plays nicely with tools like QuickBooks, iATS, Mailchimp, Google Workspace, Microsoft Office, and more.<\/span><\/p><p><span style=\"font-weight: 400;\">If your office runs on it, there\u2019s a good chance we connect with it.<\/span><\/p>"}},{"@type":"Question","name":"4. Does Sumac offer online forms?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Yes! Sumac includes sleek, customizable webforms that blend beautifully into your website.<\/span><\/p><p><span style=\"font-weight: 400;\">Any info clients enter is saved automatically in your system \u2014 no copying, pasting, or exporting.<\/span><\/p>"}},{"@type":"Question","name":"5. Is Sumac customizable?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">You bet!<\/span><\/p><p><span style=\"font-weight: 400;\">Every nonprofit is different, and we made Sumac to fit your programs and data. You can:<\/span><\/p><ul class=\"sumac-only-list\"><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pick just the extensions you need (like donations, grants, volunteers)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Adjust fields, dropdowns, and tabs to match what you track<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Even create entirely custom extensions for truly unique needs<\/span><\/li><\/ul>"}},{"@type":"Question","name":"6. Is Sumac secure?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Absolutely \u2014 we take security very seriously.<\/span><\/p><p><span style=\"font-weight: 400;\">Sumac is hosted on <\/span><b>Amazon Web Services (AWS)<\/b><span style=\"font-weight: 400;\"> for world-class protection. We\u2019re compliant with <\/span><a href=\"\/solutions\/case-management\/sumac\/hipaa-compliance\/\"><b>HIPAA<\/b><span style=\"font-weight: 400;\"> and <\/span><b>PIPEDA<\/b><\/a><span style=\"font-weight: 400;\">, so your sensitive data stays private. Plus, Sumac has <\/span><b>role-based permissions<\/b><span style=\"font-weight: 400;\">, so you can control exactly who sees what.<\/span><\/p><p>For organizations with data residency requirements, Sumac also supports <a href=\"\/solutions\/case-management\/sumac\/canada-data-hosting\/\">Canadian data hosting<\/a>.<\/p>"}},{"@type":"Question","name":"7. How is Sumac priced?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Plans start at just <\/span><b>$179\/month<\/b><span style=\"font-weight: 400;\">, and scale based on how many users and add-ons you choose.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\">Every plan comes with:<\/span><\/p><ul class=\"sumac-only-list\"><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Free live support<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">On-demand training<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Cloud hosting<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Free updates<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">If you need something special, we\u2019re happy to build you a custom quote too.<\/span><\/p>"}},{"@type":"Question","name":"8. Are there hidden fees?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Nope \u2014 we wouldn\u2019t do that.<\/span><\/p><p><span style=\"font-weight: 400;\">We believe in transparency, so what we quote is what you pay. No surprise charges for support, upgrades, usage, or anything else.<\/span><\/p>"}},{"@type":"Question","name":"9. Can I see a demo before signing up?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Of course!<\/span><\/p><p><span style=\"font-weight: 400;\">We\u2019d love to show you around. One of our team members will walk you through a personalized demo, tailored to your needs and goals.<\/span><\/p><p><span style=\"font-weight: 400;\">Request your demo <\/span><a href=\"\/get-a-demo\/\"><span style=\"font-weight: 400;\">here<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>"}},{"@type":"Question","name":"10. What data can I collect in Sumac?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Pretty much anything you need.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\">You decide what to track, and Sumac makes it easy. For example:<\/span><\/p><ul class=\"sumac-only-list\"><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Biographical details<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Medical records<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Communication history<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Custom fields you define<\/span><\/li><\/ul>"}},{"@type":"Question","name":"11. Can I import data from another system?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">You bet! We can help you migrate data from your current system into Sumac with our <\/span><a href=\"\/services\/\"><span style=\"font-weight: 400;\">implementation service<\/span><\/a><span style=\"font-weight: 400;\">, so you don\u2019t lose any information.<\/span><\/p>"}},{"@type":"Question","name":"12. How long does it take to set up Sumac?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Setup times vary depending on your needs, but most organizations can get up and running in just a few days with our full <\/span><a href=\"\/services\/\"><span style=\"font-weight: 400;\">implementation services<\/span><\/a><span style=\"font-weight: 400;\">.\u00a0<\/span><\/p>"}},{"@type":"Question","name":"13. What kind of training is included?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">We provide on-demand and personal <\/span><a href=\"\/services\/\"><span style=\"font-weight: 400;\">training sessions<\/span><\/a><span style=\"font-weight: 400;\"> to help your staff get started and make the most of Sumac.<\/span><\/p>"}},{"@type":"Question","name":"14. What is Sumac?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Sumac is a leading <\/span><b>case management software for nonprofits<\/b><span style=\"font-weight: 400;\"> that\u2019s customizable and easy to use.<\/span><\/p><p>Start with nonprofit case management, then add extensions for donations, volunteers, grants, and more\u2014all within one connected platform.<\/p><p><span style=\"font-weight: 400;\">What sets Sumac apart is how flexible and affordable it is \u2014 Sumac is designed to grow with you and help you make a bigger impact.<\/span><\/p>"}},{"@type":"Question","name":"15. Who uses Sumac?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Sumac is used by a wide range of human and social service organizations, including child & family services, shelters, counseling services, healthcare providers, and community programs.<\/span><\/p>"}},{"@type":"Question","name":"16. Is Sumac online?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Sure is!<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\">Sumac is cloud-based, so you can log in from anywhere. Your data lives securely on AWS and syncs seamlessly with the Sumac app.<\/span><\/p><p><span style=\"font-weight: 400;\">Case workers also have access to <\/span><b>Sumac Case Portal <\/b><span style=\"font-weight: 400;\">\u2014 to manage clients, case notes, and meetings on the go.<\/span><\/p>"}},{"@type":"Question","name":"17. How does Sumac help nonprofits?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Sumac helps you have a bigger impact and do more good.<\/span><\/p><p><span style=\"font-weight: 400;\">It keeps all your programs, clients, and data in one place \u2014 so you can spend less time on admin and more time helping people.<\/span><\/p><p><span style=\"font-weight: 400;\">With Sumac, you can:<\/span><\/p><ul class=\"sumac-only-list\"><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Deliver more personalized care by understanding each client\u2019s full journey<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Build action plans, assign tasks, and streamline workflows<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Track outcomes and prove your impact with easy reporting<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">You\u2019re not just managing data \u2014 you\u2019re changing lives. Sumac helps you do it better.<\/span><\/p>"}},{"@type":"Question","name":"18. Why choose Sumac?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Sumac is the #1 choice for nonprofits because of these 5 reasons:<\/span><\/p><ol class=\"sumac-one-list\"><li><span style=\"font-weight: 400;\">It\u2019s designed specifically for human and social service organizations<\/span><\/li><li><span style=\"font-weight: 400;\">It\u2019s customizable to your unique programs and mission<\/span><\/li><li><span style=\"font-weight: 400;\">It comes with free, top-rated support<\/span><\/li><li><span style=\"font-weight: 400;\">It manages more than just cases \u2014 donations, grants, volunteers, and more<\/span><\/li><li><span style=\"font-weight: 400;\">It\u2019s affordable, starting at just <b style=\"font-style: inherit;\">$179\/month<\/b><\/span><\/li><\/ol>"}},{"@type":"Question","name":"19. What is case management software?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">It\u2019s a tool that helps you organize client intake, services, and care \u2014 all in one place.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\">You can store and track:<\/span><\/p><ul class=\"sumac-only-list\"><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Client info<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Case notes<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Appointments<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Communications<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">It helps your team serve more clients with less effort, while keeping care personal and organized.<\/span><\/p>"}},{"@type":"Question","name":"20. How do I choose the right case management software?","acceptedAnswer":{"@type":"Answer","text":"<p><span style=\"font-weight: 400;\">Look for a system that:<\/span><\/p><ul class=\"sumac-only-list\"><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Does everything you need<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fits your budget<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Feels simple and intuitive<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">If you\u2019d like some help figuring it out, check out our <\/span><a href=\"\/case-management-software-guide\"><span style=\"font-weight: 400;\">buyer\u2019s guide<\/span><\/a><span style=\"font-weight: 400;\"> \u2014 we\u2019ve got tips!<\/span><\/p>"}}]}Web-Graph History
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 Data
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 sumac.com and domain-level for sumac.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.
50
Host Backlinks
180
Domain Backlinks
Backlink Data
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 sumac.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 180; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.
Backlink Data
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 sumac.com specifically, ranked by the linker's PageRank. The table shows the top 50; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.