Content - https://www.heerlen.nl BeaverCheck Audit

D

Image Optimization

Action

3 issues found across 7 images

FIX

3 issues found across 7 images

1 images significantly larger than display size

Resizing to display dimensions could save approximately 0 KB.

Got: ~0 KB wasted

All 6 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.

4 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://cuatro.sim-cdn.nl/heerlenf7cc71/uploads/styles/large_5x2_2560x1024/media/stadskantoor-heerlen-centrum.jpg?h=d57415aa&cb=osjjLNfg, https://cuatro.sim-cdn.nl/heerlenf7cc71/uploads/styles/teaser_16_9__6/media/vuurwerk.jpg?h=8b7966f8&cb=Wz8mUX1M, https://cuatro.sim-cdn.nl/heerlenf7cc71/uploads/styles/teaser_16_9__6/media/Beersdalweg_05.jpg?h=d1fae474&cb=4NbVmXTY (+1 more).

F

Brand Presence

Action

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

FIX

Brand Presence

Your brand name differs across channels — visitors see inconsistent identity.

F

26/100

Site name appears as

Page title	Toegankelijkheid
og:site_name	Gemeente Heerlen
twitter:site	—
Organization.name	—

Inconsistent — names differ across channels

Brand assets

Favicon

8/15

single size only

Social share image

0/20

Meta completeness

8/20

Organization schema

0/15

Contact info discoverable

5/10

contact page

Findings

Brand name differs across channels — users see inconsistent identity
No social share image — shared links render as bare URLs
Single favicon only — add apple-touch-icon for iOS home-screen and high-DPI support
og:image missing
No Organization schema — Google can't render your logo in the knowledge panel
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.

C

Open Graph

Action

Open Graph tags are partially configured — some improvements recommended.

REVIEW

Open Graph tags are partially configured — some improvements recommended.

Missing og:description

The og:description tag controls the description in social sharing previews.

Missing og:image

The og:image tag provides a preview image for social sharing.

og:title is short (4 characters)

Ideal length is 25–60 characters for social sharing previews.

Got: 4 chars Expected: 25–60 chars

The og:description tag controls the description in social sharing previews.

Why this matters

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:image tag provides a preview image for social sharing.

Why this matters

No og:image means social shares are imageless — measurably less engaging than image-cards across every major platform.

Learn more ▾

Twitter, Facebook, and LinkedIn all use og:image (or twitter:image as a fallback) for share-card thumbnails. Without one, the post renders as a text-only card. A 1200x630px image (Twitter's preferred size) covers all platforms.

Source: Open Graph Protocol

URL: 4 chars

Ideal length is 25–60 characters for social sharing previews.

Expected: 25–60 chars

Why this matters

og:title very short — may render with awkward whitespace in social cards.

Source: Open Graph Protocol

Preview

No image set

www.heerlen.nl

Home

No description

Preview quality · Twitter/X D · 50/100

twitter:card — summary_large_image
twitter:title — Home
twitter:description — Add twitter:description to give the preview body text
twitter:image — Add twitter:image — preview card without an image looks broken

No preview image for Twitter/X
→ Add og:image or twitter:image (≥300×157 for summary_large_image)

No image set

WWW.HEERLEN.NL

Home

No description

Preview quality · Facebook D · 50/100

og:title — Home
og:description — Add og:description to give the preview body text
og:image — Add og:image — preview card without an image looks broken
og:type — website
og:url — https://www.heerlen.nl/
og:site_name — Gemeente Heerlen

No preview image for Facebook
→ Add og:image (recommended 1200×630)

No image set

Home

www.heerlen.nl

Preview quality · LinkedIn D · 50/100

og:title — Home
og:description — Add og:description to give the preview body text
og:image — Add og:image — preview card without an image looks broken

No preview image for LinkedIn
→ Add og:image (recommended 1200×627)

www.heerlen.nl

Home

No description

Preview quality · Slack C · 65/100

og:title — Home
og:description — Add og:description to give the preview body text
og:image — Add og:image — preview card without an image looks broken

No preview image — Slack unfurl will be text-only
→ Add og:image or twitter:image

Social preview quality

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

D · 53/100

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	—	—	—

C

Structured Data

Action

1 JSON-LD block(s) found — some improvements recommended.

REVIEW

1 JSON-LD block(s) found — some improvements recommended.

Malformed JSON-LD block #1

JSON parse error: Mismatch type map[string]interface {} with value array "at index 0: mismatched type with value\n\n\t[{\"@context\":\"https://schema.org\n\t^...............................\n"

Why this matters

JSON-LD block fails to parse — Google ignores the entire block, so structured data effectively isn't there.

Learn more ▾

Common causes: trailing comma, single quotes instead of double, unescaped quote in a string value. Validate at https://validator.schema.org/ or Search Console's Rich Results Test.

Source: schema.org / Google Search Central

JSON-LD Blocks

Block 1 : GovernmentOrganization

0 properties Invalid

Invalid JSON: Mismatch type map[string]interface {} with value array "at index 0: mismatched type with value\n\n\t[{\"@context\":\"https://schema.org\n\t^...............................\n"

[
  {
    "@context": "https://schema.org",
    "@type": "GovernmentOrganization",
    "name": "Gemeente Heerlen",
    "url": "https://www.heerlen.nl",
    "logo": {
      "@type": "imageObject",
      "url": "https://cuatro.sim-cdn.nl/heerlenf7cc71/uploads/2024-02/logo_gemeente_heerlen.svg?cb=j_1RvPbu",
      "width": 0,
      "height": 0
    },
    "telephone": "045-5605040"
  },
  {
    "@type": "WebPage",
    "@context": "https://schema.org",
    "name": "Home",
    "url": "https://www.heerlen.nl/",
    "description": "Bezoek de website van Gemeente Heerlen voor meer informatie.",
    "author": {
      "@context": "https://schema.org",
      "@type": "GovernmentOrganization",
      "name": "Gemeente Heerlen",
      "url": "https://www.heerlen.nl",
      "logo": {
        "@type": "imageObject",
        "url": "https://cuatro.sim-cdn.nl/heerlenf7cc71/uploads/2024-02/logo_gemeente_heerlen.svg?cb=j_1RvPbu",
        "width": 0,
        "height": 0
      },
      "telephone": "045-5605040"
    },
    "headline": "Home",
    "datePublished": "2026-02-17T23:00:00.000Z",
    "dateModified": "2026-09-15T09:19:35.000Z",
    "publisher": {
      "@context": "https://schema.org",
      "@type": "GovernmentOrganization",
      "name": "Gemeente Heerlen",
      "url": "https://www.heerlen.nl",
      "logo": {
        "@type": "imageObject",
        "url": "https://cuatro.sim-cdn.nl/heerlenf7cc71/uploads/2024-02/logo_gemeente_heerlen.svg?cb=j_1RvPbu",
        "width": 0,
        "height": 0
      },
      "telephone": "045-5605040"
    },
    "mainEntityOfPage": {
      "@type": "WebPage",
      "@id": "https://www.heerlen.nl/"
    },
    "@graph": [
      {
        "@context": "https://schema.org",
        "@type": "SiteNavigationElement",
        "@id": "#site-navigation",
        "name": "Wonen en leven",
        "url": "https://www.heerlen.nl/wonen-en-leven"
      },
      {
        "@context": "https://schema.org",
        "@type": "SiteNavigationElement",
        "@id": "#site-navigation",
        "name": "Zorg en inkomen",
        "url": "https://www.heerlen.nl/zorg-en-inkomen"
      },
      {
        "@context": "https://schema.org",
        "@type": "SiteNavigationElement",
        "@id": "#site-navigation",
        "name": "Ondernemen",
        "url": "https://www.heerlen.nl/ondernemen"
      },
      {
        "@context": "https://schema.org",
        "@type": "SiteNavigationElement",
        "@id": "#site-navigation",
        "name": "Stad en  bestuur",
        "url": "https://www.heerlen.nl/stad-en-bestuur"
      }
    ]
  }
]

A+

Links

121 links checked, 121 healthy, 0 broken

PASS

121 links checked, 121 healthy, 0 broken

121 of 121 links are healthy

121 total 121 healthy

200 https://cuatro.sim-cdn.nl/heerlenf7cc71/uploads/2024-04/favi... <link>

200 https://www.heerlen.nl/ <link>

200 https://www.heerlen.nl/api/manifest <link>

200 https://heerlen.logging.simanalytics.nl/piwik.js <link>

200 https://cuatro.sim-cdn.nl/assets/2.14.0/_next/static/chunks/... <link>

200 https://cuatro.sim-cdn.nl/assets/2.14.0/iconFonts/opengemeen... <link>

200 https://cuatro.sim-cdn.nl/assets/2.14.0/iconFonts/toptaken/c... <link>

200 https://cuatro.sim-cdn.nl/assets/2.14.0/iconFonts/fontawesom... <link>

200 https://cuatro.sim-cdn.nl/assets/2.14.0/fonts/openDyslexic/c... <link>

200 https://fonts.bunny.net/css?family=montserrat%3A100%2C100i%2... <link>

200 https://cuatro.sim-cdn.nl/assets/2.14.0/_next/static/chunks/... <script>

200 https://cuatro.sim-cdn.nl/assets/2.14.0/_next/static/2.14.0/... <script>

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

A+

Open Graph / Twitter Card Depth

OG image dimensions and Twitter card configuration look healthy

PASS

OG image dimensions and Twitter card configuration look healthy

OG/Twitter Card depth is clean -- dimensions, card type, and inheritance all valid

A+

Rich Results Eligibility

1 JSON-LD block(s) declaring 0 schema type(s)

PASS

1 JSON-LD block(s) declaring 0 schema type(s)

A+

Autoplay Media

No autoplay media on the page

PASS

No autoplay media on the page