oreilly.com
Link authority for oreilly.com (registrable domain: oreilly.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 oreilly.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 oreilly.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 oreilly.com presents on its own homepage: the page title, description, and the social share markup it publishes. Pulled from https://oreilly.com.
| Title | O'Reilly Media - Technology and Business Training |
|---|---|
| Description | Build the skills your teams need. Give them the O'Reilly learning platform and equip them with the resources that drive business outcomes. |
| OG Title | O'Reilly Media - Technology and Business Training |
| Twitter Title | O'Reilly Media - Technology and Business Training |
| Twitter Card | summary |
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.
| Substack | oreillyradar |
|---|---|
| oreilly-media (business) | |
| Youtube | OreillyMedia |
| Googleplay | com.safariflow.queue |
| Contact pages | https://oreilly.com/about/contact.html |
|---|
Structured data (JSON-LD)
The schema.org markup this homepage publishes: the machine-readable identity search engines and AI systems read. Types found: Corporation, WebPage, WebSite.
JSON-LD block (6,019 bytes)
{
"@context": "https://schema.org",
"@type": "Corporation",
"name": "O'Reilly Media",
"legalName": "O'Reilly Media, Inc.",
"url": "https://www.oreilly.com/",
"logo": {
"@type": "ImageObject",
"url": "https://cdn.oreillystatic.com/images/sitewide-headers/oreilly_logo_mark_red.svg",
"width": "200",
"height": "50"
},
"description": "The O'Reilly learning platform is a skill-building platform that equips individuals and teams with the resources that drive business outcomes. We help tech teams stay ahead. O'Reilly empowers professionals, teams, enterprises, academic institutions, and government organizations to forge a brighter future with guidance from the pioneers who shape today's world. For over 45 years, we've built a renowned community of expert active practitioners with a knack for teaching, and we've cultivated an inherent ability to anticipate technological and business developments by tracking emerging trends. O'Reilly uniquely offers a comprehensive online learning solution that provides insights from these visionary experts and nearly 200 respected providers. We cater to the needs of all learners with diverse content formats and coverage across an abundance of topic areas in all skill levels. And we leverage AI and ML for a truly personalized experience that drives productivity and fosters continuous learning. These distinct tools combined with our unmatched content make O'Reilly the clear choice to acquire in-demand skills, drive career growth, and stay ahead in a rapidly changing world.",
"slogan": "Your partner for in-demand tech and business skills",
"foundingDate": "1978",
"founder": {
"@type": "Person",
"name": "Tim O'Reilly",
"sameAs": [
"https://www.linkedin.com/in/timo3/",
"https://www.oreilly.com/tim/bio.html"
]
},
"founders": [
{
"@type": "Person",
"name": "Tim O'Reilly"
}
],
"address": {
"@type": "PostalAddress",
"streetAddress": "141 Stony Circle, Suite 195",
"addressLocality": "Sebastopol",
"addressRegion": "CA",
"postalCode": "95472",
"addressCountry": "US"
},
"location": [
{
"@type": "Place",
"name": "Corporate Headquarters",
"address": {
"@type": "PostalAddress",
"streetAddress": "141 Stony Circle, Suite 195",
"addressLocality": "Sebastopol",
"addressRegion": "CA",
"postalCode": "95472",
"addressCountry": "US"
}
},
{
"@type": "Place",
"name": "UK Office",
"address": {
"@type": "PostalAddress",
"streetAddress": "Clockhouse, Dogflud Way",
"addressLocality": "Farnham",
"postalCode": "GU9 7UD",
"addressCountry": "UK"
}
},
{
"@type": "Place",
"name": "China Office",
"address": {
"@type": "PostalAddress",
"streetAddress": "Suite 807, Building C, Cheng Ming Mansion, No.2 Xizhimen South Street",
"addressLocality": "Xicheng District, Beijing",
"postalCode": "100035",
"addressCountry": "CN"
}
},
{
"@type": "Place",
"name": "Japan Office",
"address": {
"@type": "PostalAddress",
"streetAddress": "VORT Yotsuyasakamachi Bldg. 1F, 12-22 Yotsuyasakamachi",
"addressLocality": "Shinjuku-ku, Tokyo",
"postalCode": "160-0002",
"addressCountry": "JP"
}
}
],
"contactPoint": [
{
"@type": "ContactPoint",
"telephone": "+1-707-827-7019",
"contactType": "customer support",
"availableLanguage": "en",
"email": "support@oreilly.com"
},
{
"@type": "ContactPoint",
"telephone": "+1-800-889-8969",
"contactType": "toll free",
"availableLanguage": "en"
},
{
"@type": "ContactPoint",
"telephone": "+44-20-3355-9998",
"contactType": "customer support",
"availableLanguage": "en"
},
{
"@type": "ContactPoint",
"telephone": "+61-29-191-9777",
"contactType": "customer support",
"availableLanguage": "en"
}
],
"numberOfEmployees": {
"@type": "QuantitativeValue",
"minValue": 201,
"maxValue": 500,
"unitText": "employees"
},
"sameAs": [
"https://www.linkedin.com/company/oreilly/",
"https://www.youtube.com/user/OreillyMedia",
"https://apps.apple.com/us/app/oreilly/id881697395",
"https://play.google.com/store/apps/details?id=com.safariflow.queue"
],
"potentialAction": [
{
"@type": "ViewAction",
"name": "Explore the O'Reilly Learning Platform",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://www.oreilly.com/online-learning/"
}
},
{
"@type": "SubscribeAction",
"name": "View Subscription Pricing Plans",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://www.oreilly.com/online-learning/pricing.html"
}
},
{
"@type": "ViewAction",
"name": "Request a Team Demo",
"target": {
"@type": "EntryPoint",
"urlTemplate": "https://www.oreilly.com/online-learning/teams.html"
}
},
{
"@type": "DownloadAction",
"name": "Download the O'Reilly App",
"target": [
{
"@type": "EntryPoint",
"urlTemplate": "https://apps.apple.com/us/app/oreilly/id881697395"
},
{
"@type": "EntryPoint",
"urlTemplate": "https://play.google.com/store/apps/details?id=com.safariflow.queue"
}
]
}
],
"knowsAbout": [
"Online learning",
"Software development",
"Data science",
"Machine learning",
"Cloud computing",
"Cybersecurity",
"Leadership",
"Business strategy",
"AI and GenAI",
"DevOps",
"Productivity tools"
]
}
JSON-LD block (468 bytes)
{
"@context": "https://schema.org",
"@type": "WebPage",
"name": "O'Reilly Media - Technology and Business Training",
"description": "O'Reilly's learning platform delivers live online training, interactive learning, certification preparation, books, videos, and more from the world's leading experts in technology and business.",
"publisher": {
"@type": "Organization",
"name": "O'Reilly Media"
},
"url": "https://www.oreilly.com/"
}
JSON-LD block (322 bytes)
{
"@context": "https://schema.org",
"@type": "WebSite",
"name": "O'Reilly Media",
"url": "https://www.oreilly.com/",
"potentialAction": {
"@type": "SearchAction",
"target": "https://www.oreilly.com/search/?q={search_term_string}",
"query-input": "required name=search_term_string"
}
}
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 oreilly.com and domain-level for oreilly.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 oreilly.com (including its subdomains), ranked by the linker's PageRank. The table shows the top 1,000; 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 oreilly.com specifically, ranked by the linker's PageRank. The table shows the top 1,000; the download carries the full stored list (up to 10,000 linkers) as JSON. Click a linker for its own site profile.