Content
· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.FLinksAction200 links checked, 70 healthy, 130 brokenFIX
Broken Links (50)
| Status | URL | Found in | Error |
|---|---|---|---|
| 403 | https://oreilly.com/search/skills/microsoft-azure/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/amazon-web-servi... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/google-cloud/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/cloud-migration/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/cloud-deployment... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/cloud-platforms/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/cloud-computing/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/data-warehouse/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/sql/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/apache-spark/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/microsoft-sql-se... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/mysql/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/kafka/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/data-lake/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/streaming-messag... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/nosql-databases/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/relational-datab... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/data-engineering... | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/pandas/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/r/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/matlab/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/sas/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/d3/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/power-bi/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/tableau/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/statistics/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/exploratory-data... | <a> | Forbidden |
| 403 | https://oreilly.com/search/topics/data-visualizati... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/data-science/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/generative-ai/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/machine-learning... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/artificial-intel... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/deep-learning/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/reinforcement-le... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/natural-language... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/tensorflow/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/scikit-learn/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/hyperparameter-t... | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/mlops/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/ai-ml/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/java/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/javascript/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/spring/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/python/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/go/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/c-sharp/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/c-plus-plus/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/c/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/swift/ | <a> | Forbidden |
| 403 | https://oreilly.com/search/skills/rust/ | <a> | Forbidden |
DOpen GraphActionOpen Graph tags need attention — social sharing previews may be incomplete.FIX
https://cdn.oreillystatic.com/oreilly/images/oreilly-social-200.pngThe og:image URL could not be fetched. Social platforms won't be able to display it.
An unreachable og:image URL (404, DNS fail, slow timeout) means social platforms cache the failure and serve no image for hours.
Learn more ▾ ▴
Social platforms (Facebook, Twitter) cache OG metadata aggressively — including failed image fetches. A momentarily-broken og:image can leave your shares imageless for hours. Test og:image URLs in Facebook's Sharing Debugger to force re-cache after fixing.
Source: Open Graph Protocol / Facebook Sharing Debugger
The og:description tag controls the description in social sharing previews.
No og:description means social cards either show no subtitle or scrape the first paragraph — usually unflattering.
Learn more ▾ ▴
Without og:description, social platforms either render no subtitle or pull whatever text appears first on the page. The first paragraph is rarely written for share-card context. A purpose-written 150-200 character og:description gives a polished card.
Source: Open Graph Protocol
The og:url tag specifies the canonical URL for the shared content.
Without og:url, social platforms infer the canonical URL — often picking a tracking-param variant that pollutes share counts.
Learn more ▾ ▴
og:url tells the social platform which URL to count this share against. Without it, platforms use the literal URL the user pasted (which may include utm_* parameters, ref codes, etc.). Setting og:url to the canonical form keeps share-count attribution clean.
Source: Open Graph Protocol
The og:site_name tag displays the website name in social previews.
Without og:site_name, social cards omit the brand attribution — users see the post but not who published it.
Learn more ▾ ▴
og:site_name appears in the social card chrome (above the title in Facebook/LinkedIn previews). Without it, posts read as anonymous URLs. Set it to your brand name to get free attribution on every share.
Source: Open Graph Protocol
Preview

oreilly.com
O'Reilly Media - Technology and Business Training
Build the skills your teams need. Give them the O'Reilly learning platform and equip them with the resources that drive business outcomes.
- twitter:card — summary
- twitter:title — O'Reilly Media - Technology and Business Training
- twitter:description — Build the skills your teams need. Give them the O'Reilly learning platform and equip them with the resources that dri...
- twitter:image — https://cdn.oreillystatic.com/oreilly/images/oreilly-social-200.png

OREILLY.COM
O'Reilly Media - Technology and Business Training
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
- og:description — falling back from <meta name=description>
- og:image — https://cdn.oreillystatic.com/oreilly/images/oreilly-social-200.png
- og:type — website
- og:url — Add og:url — Recommended — canonical URL for the share
- og:site_name — Add og:site_name — Recommended — site-level brand line in the preview

O'Reilly Media - Technology and Business Training
oreilly.com
- og:title — O'Reilly Media - Technology and Business Training
- og:description — falling back from <meta name=description>
- og:image — https://cdn.oreillystatic.com/oreilly/images/oreilly-social-200.png
oreilly.com
O'Reilly Media - Technology and Business Training
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
- og:description — falling back from og:description
- og:image — https://cdn.oreillystatic.com/oreilly/images/oreilly-social-200.png
Social preview quality
Averaged across Twitter/X, Facebook, LinkedIn, and Slack.
| Field | Twitter/X | Slack | ||
|---|---|---|---|---|
| og:title | ||||
| og:description | ⚠ | ⚠ | ⚠ | |
| og:image | ||||
| og:type | ||||
| og:url | ||||
| og:site_name | ||||
| twitter:card | — | — | — | |
| twitter:title | — | — | — | |
| twitter:description | — | — | — | |
| twitter:image | — | — | — |
CBrand PresenceActionSite-name consistency, favicon, social image, meta tags, schema, and contact signalsREVIEW
Brand Presence
Your brand name differs across channels — visitors see inconsistent identity.
C
67/100
Site name appears as
| Page title | Technology and Business Training | |
| og:site_name | — | |
| twitter:site | @OReillyMedia | |
| Organization.name | O'Reilly Media |
Inconsistent — names differ across channels
Brand assets
Favicon
8/15single size only
Social share image
20/20og:image + twitter:image set
Meta completeness
14/20Organization schema
15/15has name, logo + url
Contact info discoverable
5/10contact page
Findings
- Brand name differs across channels — users see inconsistent identity
- Single favicon only — add apple-touch-icon for iOS home-screen and high-DPI support
- Only partial contact info discoverable — consider adding a dedicated contact page or mailto/tel link
How consistently your brand appears across channels — shared link previews, structured data, favicon, contact info.
A+Mixed ContentNo mixed content detected — all resources use HTTPS.PASS
A+Structured Data1 JSON-LD block(s) found — structured data is well configured.PASS
JSON-LD Blocks
{
"@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": "1005 Gravenstein Highway North",
"addressLocality": "Sebastopol",
"addressRegion": "CA",
"postalCode": "95472",
"addressCountry": "US"
},
"location": [
{
"@type": "Place",
"name": "Corporate Headquarters",
"address": {
"@type": "PostalAddress",
"streetAddress": "1005 Gravenstein Highway North",
"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"
]
}