Content

· 9 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

6 PASS 2 REVIEW 1 FIX

Image Optimization

Action

3 issues found across 1 images

FIX

3 issues found across 1 images

1 images significantly larger than display size

Resizing to display dimensions could save approximately 101 KB.

Got: ~101 KB wasted

All 1 images use legacy formats (JPEG/PNG/GIF)

WebP offers 25-35% smaller files than JPEG. Use <picture> with <source type="image/webp"> for modern format support.

1 image(s) rendered at a different aspect ratio than the source

The displayed dimensions distort the source -- CSS is forcing the image into a container at the wrong ratio, producing visible stretching or squashing. Either crop the source to match or use object-fit: cover (and accept the crop). Sample: https://john-nguembu.netlify.app/me2.jpeg.

Links

Action

24 links checked, 19 healthy, 5 broken

REVIEW

24 links checked, 19 healthy, 5 broken

19 of 24 links are healthy

Broken link: https://fonts.googleapis.com

Found in <link href>. Returns HTTP 404.

Got: HTTP 404

Broken link: https://fonts.gstatic.com

Found in <link href>. Returns HTTP 404.

Got: HTTP 404

Broken link: https://www.linkedin.com/in/jaures-nguembu-040658335/

Found in <a href>. Returns HTTP 999.

Got: HTTP 999

Broken link: https://github.com/nguembu/TradeFlow

Found in <a href>. Returns HTTP 404.

Got: HTTP 404

Broken link: https://github.com/nguembu/master-thesis-distributed-systems

Found in <a href>. Returns HTTP 404.

Got: HTTP 404

24 total 19 healthy 5 broken

Broken Links (5)

Status	URL	Found in	Error
404	https://fonts.googleapis.com	`<link>`	Not Found
404	https://fonts.gstatic.com	`<link>`	Not Found
999	https://www.linkedin.com/in/jaures-nguembu-0406583...	`<a>`	HTTP 999
404	https://github.com/nguembu/TradeFlow	`<a>`	Not Found
404	https://github.com/nguembu/master-thesis-distribut...	`<a>`	Not Found

200 https://cdnjs.cloudflare.com <link>

200 https://formspree.io <link>

200 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/cs... <link>

200 https://fonts.googleapis.com/css2?family=Space+Mono:wght@400... <link>

200 https://github.com/nguembu <a>

200 https://x.com/_Johnny_watson <a>

200 https://www.instagram.com/i_am_johnny_watson/ <a>

200 https://john-nguembu.netlify.app/CV_John_NGUEMBU_FR.pdf <a>

200 https://john-nguembu.netlify.app/CV_John_NGUEMBU_EN.pdf <a>

200 https://john-nguembu.netlify.app/me2.jpeg <img>

200 https://github.com/nguembu/njila <a>

200 https://tmsarl.netlify.app/ <a>

200 https://github.com/nguembu/BloodLink <a>

200 https://github.com/nguembu/tempo_air_quality <a>

200 https://github.com/nguembu/blogPlatform <a>

200 https://keng-engineering-website.netlify.app/ <a>

200 https://mamzy-color-kids.netlify.app/ <a>

200 https://github.com/nguembu/TERRABIA <a>

200 https://github.com/nguembu/NJILA <a>

Brand Presence

Action

Site-name consistency, favicon, social image, meta tags, schema, and contact signals

REVIEW

Brand Presence

Partial brand coverage — a few channels are missing brand signals.

63/100

Site name appears as

Page title	Software Architect & M2 Researcher
og:site_name	—
twitter:site	—
Organization.name	—

Consistent

Brand assets

Favicon

8/15

single size only

Social share image

20/20

og:image + twitter:image set

Meta completeness

20/20

Organization schema

0/15

Contact info discoverable

10/10

contact page + mailto link

Findings

Missing brand name in: og:site_name, twitter:site, Organization.name
Single favicon only — add apple-touch-icon for iOS home-screen and high-DPI support
No Organization schema — Google can't render your logo in the knowledge panel

How consistently your brand appears across channels — shared link previews, structured data, favicon, contact info.

A+

Mixed Content

No mixed content detected — all resources use HTTPS.

PASS

No mixed content detected — all resources use HTTPS.

No mixed content detected — all resources use HTTPS

Open Graph

Open Graph tags are well configured for social sharing.

PASS

Open Graph tags are well configured for social sharing.

Missing og:site_name

The og:site_name tag displays the website name in social previews.

Why this matters

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

john-nguembu.netlify.app

John NGUEMBU — Software Architect & M2 Researcher

Ingénieur Logiciel Fullstack & chercheur M2 — Analyse prédictive d'impact des changements dans les architectures microservices évolutives.

Preview quality · Twitter/X A+ · 100/100

twitter:card — summary_large_image
twitter:title — John NGUEMBU — Software Architect
twitter:description — Distributed Systems · Predictive Change Impact Analysis · M2 Research
twitter:image — me2.jpeg

JOHN-NGUEMBU.NETLIFY.APP

John NGUEMBU — Software Architect & M2 Researcher

Ingénieur Logiciel Fullstack & chercheur M2 — Analyse prédictive d'impact des changements dans les architectures microservices évolutives.

Preview quality · Facebook A · 85/100

og:title — John NGUEMBU — Software Architect & M2 Researcher
og:description — Ingénieur Logiciel Fullstack & chercheur M2 — Analyse prédictive d'impact des changements dans les architectures micr...
og:image — https://john-nguembu.netlify.app/me2.jpeg
og:type — website
og:url — https://john-nguembu.netlify.app/
og:site_name — Add og:site_name — Recommended — site-level brand line in the preview

John NGUEMBU — Software Architect & M2 Researcher

john-nguembu.netlify.app

Preview quality · LinkedIn A+ · 100/100

og:title — John NGUEMBU — Software Architect & M2 Researcher
og:description — Ingénieur Logiciel Fullstack & chercheur M2 — Analyse prédictive d'impact des changements dans les architectures micr...
og:image — https://john-nguembu.netlify.app/me2.jpeg

john-nguembu.netlify.app

John NGUEMBU — Software Architect & M2 Researcher

Ingénieur Logiciel Fullstack & chercheur M2 — Analyse prédictive d'impact des changements dans les architectures microservices évolutives.

Preview quality · Slack A+ · 100/100

og:title — John NGUEMBU — Software Architect & M2 Researcher
og:description — Ingénieur Logiciel Fullstack & chercheur M2 — Analyse prédictive d'impact des changements dans les architectures micr...
og:image — https://john-nguembu.netlify.app/me2.jpeg

Social preview quality

Averaged across Twitter/X, Facebook, LinkedIn, and Slack.

A+ · 96/100

Field	Facebook	LinkedIn	Slack
og:title
og:description
og:image
og:type
og:url
og:site_name
twitter:card	—	—	—
twitter:title	—	—	—
twitter:description	—	—	—
twitter:image	—	—	—

Open Graph / Twitter Card Depth

1 OG/Twitter depth issue(s) detected

PASS

1 OG/Twitter depth issue(s) detected

2 Twitter Card field(s) differ from Open Graph counterparts

Twitter Cards inherit values from Open Graph tags when the Twitter-specific tag is absent (`twitter:title` falls back to `og:title`, etc.). Explicitly-set Twitter values that DIFFER from OG are usually stale -- the marketing team updates `og:title` for FB/LinkedIn previews and forgets to update `twitter:title` separately, leaving Twitter showing the old text. Mismatches: - title: twitter="John NGUEMBU — Software Architect", og="John NGUEMBU — Software Architect & M2 R..." - description: twitter="Distributed Systems · Predictive Change ...", og="Ingénieur Logiciel Fullstack & chercheur..." Fix: either remove the redundant Twitter-specific tags (rely on inheritance) or sync them when updating OG.

Got: 2 field(s) differ

A+

Structured Data

1 JSON-LD block(s) found — structured data is well configured.

PASS

1 JSON-LD block(s) found — structured data is well configured.

Missing recommended property "image" for Person

Adding "image" can improve how search engines display your content.

Why this matters

Recommended schema properties unlock richer SERP layouts — without them you get the basic rich result instead of the enhanced one.

Learn more ▾

Recommended properties expand what Google can render. E.g., adding aggregateRating to Product unlocks star ratings; adding image to Article unlocks the image-card variant. Each recommended property is a direct SERP-real-estate gain.

Source: Google Search Central / schema.org

JSON-LD Blocks

Block 1 : Person

9 properties Valid

{
  "@context": "https://schema.org",
  "@type": "Person",
  "name": "John NGUEMBU",
  "jobTitle": "Software Architect & M2 Researcher",
  "url": "https://john-nguembu.netlify.app",
  "sameAs": [
    "https://github.com/nguembu",
    "https://www.linkedin.com/in/jaures-nguembu-040658335/",
    "https://x.com/_Johnny_watson",
    "https://www.instagram.com/i_am_johnny_watson/"
  ],
  "address": {
    "@type": "PostalAddress",
    "addressLocality": "Yaoundé",
    "addressCountry": "CM"
  },
  "affiliation": {
    "@type": "Organization",
    "name": "Université de Yaoundé I — Faculté des Sciences"
  },
  "knowsAbout": [
    "Predictive Change Impact Analysis",
    "Microservices",
    "Distributed Systems",
    "Spring Boot",
    "Django",
    "React",
    "RabbitMQ"
  ]
}

A+

Rich Results Eligibility

1 JSON-LD block(s) declaring 1 schema type(s)

PASS

1 JSON-LD block(s) declaring 1 schema type(s)

1 rich-result schema type(s) declared

Inventory of structured-data types on the page (each may unlock a different SERP feature): Person Search engines decide whether to render rich results based on content quality + page-level signals; declaring the schema is necessary but not sufficient.

A+

Autoplay Media

No autoplay media on the page

PASS

No autoplay media on the page

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.