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· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
79
GRADE
C
FIX
2
REVIEW
0
PASS
3
INFO
0
Checks
5
3 PASS 2 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

sparkfun.com

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

SPARKFUN.COM

No title set

No description

Preview quality · Facebook F · 10/100
  • 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
  • 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

  • No preview image for Facebook

    → Add og:image (recommended 1200×630)

No image set

No title set

sparkfun.com

Preview quality · LinkedIn D · 55/100
  • 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 for LinkedIn

    → Add og:image (recommended 1200×627)

sparkfun.com

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 · 38/100
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

42/100

Site name appears as

Page titleSparkFun Electronics
og:site_name—
twitter:site—
Organization.nameSparkFun Electronics

Consistent

Brand assets

Favicon

8/15

single size only

Social share image

0/20

Meta completeness

4/20

Organization schema

15/15

has name, logo + url

Contact info discoverable

5/10

contact page

Findings

  • Missing brand name in: og:site_name, twitter:site
  • 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:title missing
  • og:image missing
  • twitter:card missing
  • Consider adding contactPoint — helps appear in "contact us" rich results
  • 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 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
A+
Structured Data
2 JSON-LD block(s) found — structured data is well configured.
PASS
2 JSON-LD block(s) found — structured data is well configured.
Info::
Missing recommended property "description" for WebSite
Adding "description" can improve how search engines display your content.
Info::
2 JSON-LD blocks found

Adding "description" 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 : WebSite
5 properties Valid
{
  "@context": "https:\/\/schema.org",
  "@type": "WebSite",
  "url": "https:\/\/www.sparkfun.com\/",
  "name": "SparkFun Electronics",
  "potentialAction": {
    "@type": "SearchAction",
    "target": "https:\/\/www.sparkfun.com\/catalogsearch\/result\/?q={search_term_string}",
    "query-input": "required name=search_term_string"
  }
}
Block 2 : Organization
8 properties Valid
{
  "@context": "https:\/\/schema.org",
  "@type": "Organization",
  "url": "https:\/\/www.sparkfun.com\/",
  "name": "SparkFun Electronics",
  "logo": "https:\/\/www.sparkfun.com\/media\/wysiwyg\/footerpages\/PressMedia\/dark-logo-red-flame.png",
  "description": "Read Since 2003, SparkFun has empowered all skill levels to create with open source hardware, tutorials, and tools for rapid prototyping and innovatio...",
  "address": {
    "addressCountry": "US",
    "postalCode": "80503",
    "addressRegion": "Colorado",
    "addressLocality": "Niwot",
    "streetAddress": "6333 Dry Creek Parkway",
    "@type": "PostalAddress"
  },
  "sameAs": [
    "https:\/\/www.facebook.com\/SparkFun",
    "https:\/\/x.com\/sparkfun",
    "https:\/\/www.instagram.com\/sparkfun\/",
    "https:\/\/www.youtube.com\/sparkfun",
    "https:\/\/www.linkedin.com\/company\/sparkfun-electronics"
  ]
}
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