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· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
70
GRADE
C
FIX
3
REVIEW
1
PASS
1
INFO
0
Checks
5
1 PASS 1 REVIEW 3 FIX
F
Open Graph
Action
No Open Graph tags found — social sharing previews will be generic.
FIX
No Open Graph tags found — social sharing previews will be generic.
Warning::
No Open Graph meta tags found
Without og:title, og:description, and og:image, social media platforms will generate a generic preview when your page is shared.

Without og:title, og:description, and og:image, social media platforms will generate a generic preview when your page is shared.

Why this matters

Without Open Graph tags, social shares show a broken or empty preview card.

Learn more ▾

When someone shares your URL on Facebook, LinkedIn, Slack, iMessage, or any modern chat app, the preview comes from <meta property="og:*"> tags. Without them you get either no card or whatever fragment the social platform guesses — usually unflattering. The four core og: tags (title, description, image, url) cover what every major platform actually reads.

Source: Open Graph Protocol

Preview

No image set

hackster.io

No title set

No description

Preview quality · Twitter/X F · 20/100
  • twitter:card — Add <meta name="twitter:card" content="summary_large_image">
  • twitter:title — falling back from <title>
  • twitter:description — falling back from <meta name=description>
  • twitter:image — Add twitter:image — preview card without an image looks broken

  • twitter:card is missing

    → Add <meta name="twitter:card" content="summary_large_image">

  • No preview image for Twitter/X

    → Add og:image or twitter:image (≥300×157 for summary_large_image)

No image set

HACKSTER.IO

No title set

No description

Preview quality · Facebook F · 5/100

Description will be truncated (159 chars / 155 max)

  • og:title — falling back from <title>
  • og:description — falling back from <meta name=description>
  • og:image — Add og:image — preview card without an image looks broken
  • og:type — Add og:type — Recommended — tells Facebook the content category
  • 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

  • Description will be truncated on Facebook (159 chars, max 155)

    → Tighten og:description to ≤155 characters

  • No preview image for Facebook

    → Add og:image (recommended 1200×630)

No image set

No title set

hackster.io

Preview quality · LinkedIn D · 50/100

Description will be truncated (159 chars / 150 max)

  • og:title — falling back from <title>
  • og:description — falling back from <meta name=description>
  • og:image — Add og:image — preview card without an image looks broken

  • Description will be truncated on LinkedIn (159 chars, max 150)

    → Tighten og:description to ≤150 characters

  • No preview image for LinkedIn

    → Add og:image (recommended 1200×627)

hackster.io

No title set

No description

Preview quality · Slack C · 70/100
  • og:title — falling back from <title>
  • og:description — falling back from <meta name=description>
  • 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.

F · 36/100
FieldTwitter/XFacebookLinkedInSlack
og:title⚠⚠⚠
og:description⚠⚠⚠
og:image
og:type
og:url
og:site_name
twitter:card———
twitter:title⚠———
twitter:description⚠———
twitter:image———
D
Brand Presence
Action
Site-name consistency, favicon, social image, meta tags, schema, and contact signals
FIX

Brand Presence

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

D

44/100

Site name appears as

Page titleHackster.io
og:site_name—
twitter:site—
Organization.nameHackster.io

Consistent

Brand assets

Favicon

15/15

covers multiple sizes + apple-touch-icon

Social share image

0/20

Meta completeness

4/20

Organization schema

15/15

has name, logo + url

Contact info discoverable

0/10

no contact info discoverable

Findings

  • Missing brand name in: og:site_name, twitter:site
  • No social share image — shared links render as bare URLs
  • og:title missing
  • og:image missing
  • twitter:card missing
  • Consider adding contactPoint — helps appear in "contact us" rich results
  • No discoverable contact info — trust signal is weak, legal risk is higher in regulated regions

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

B
Structured Data
1 JSON-LD block(s) found — some improvements recommended.
REVIEW
1 JSON-LD block(s) found — some improvements recommended.
Warning::
Missing or invalid @context in block #1
The @context should be "https://schema.org" for search engines to recognize the data.
Got: http://www.schema.org Expected: https://schema.org
URL: http://www.schema.org

The @context should be "https://schema.org" for search engines to recognize the data.

Expected: https://schema.org
Why this matters

JSON-LD without @context is invalid structured data — Google ignores the entire block.

Learn more ▾

@context must be 'https://schema.org' (or the schema-specific URL). Without it, the block isn't parseable as schema.org JSON-LD and Google skips it. Most schema generators handle this; manual edits sometimes drop the field.

Source: JSON-LD spec / schema.org

JSON-LD Blocks

Block 1 : Organization
9 properties Valid
Missing or invalid @context
{
  "@context": "http://www.schema.org",
  "@type": "Organization",
  "description": "Hackster is a community dedicated to learning hardware, from beginner to pro. Share your projects and learn from other developers. Come build awesome hardware!",
  "name": "Hackster.io",
  "url": "https://www.hackster.io/",
  "image": "https://www.hackster.io/assets/hackster_avnet_logo_blue.png",
  "logo": "https://www.hackster.io/assets/hackster_logo_squared.png",
  "address": {
    "@type": "PostalAddress",
    "streetAddress": "2550 N. First Street, Suite 350",
    "addressLocality": "San Jose",
    "addressRegion": "CA",
    "postalCode": "95131"
  },
  "sameAs": [
    "https://twitter.com/Hacksterio",
    "https://www.facebook.com/hacksterio/",
    "https://www.linkedin.com/company/hacksterio",
    "https://www.youtube.com/hacksterio",
    "https://www.crunchbase.com/organization/hackster-io"
  ]
}
A+
Mixed Content
No mixed content detected — all resources use HTTPS.
PASS
No mixed content detected — all resources use HTTPS.
Info::
No mixed content detected — all resources use HTTPS
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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