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· 5 checks — Internal links, mixed-content guards, Open Graph previews, and structured data rolled into one auditable list.
SCORE
63
GRADE
D
FIX
3
REVIEW
1
PASS
1
INFO
0
Checks
5
1 PASS 1 REVIEW 3 FIX
F
Mixed Content
Action
3 HTTP resource(s) loaded on HTTPS page
FIX
3 HTTP resource(s) loaded on HTTPS page
Critical::
HTTP link loaded on HTTPS page
Modern browsers block or warn about HTTP resources on HTTPS pages. Change the URL to use HTTPS.
Got: http://purl.org/dc/elements/1.1/ Expected: https://purl.org/dc/elements/1.1/
Critical::
HTTP link loaded on HTTPS page
Modern browsers block or warn about HTTP resources on HTTPS pages. Change the URL to use HTTPS.
Got: http://www.loc.gov/text-us-government-work Expected: https://www.loc.gov/text-us-government-work
Warning::
HTTP meta loaded on HTTPS page
Modern browsers block or warn about HTTP resources on HTTPS pages. Change the URL to use HTTPS.
Got: http://www.loc.gov/static/images/favicons/open-graph-logo.png Expected: https://www.loc.gov/static/images/favicons/open-graph-logo.png
URL: http://purl.org/dc/elements/1.1/

Modern browsers block or warn about HTTP resources on HTTPS pages. Change the URL to use HTTPS.

Expected: https://purl.org/dc/elements/1.1/
Why this matters

Mixed content — HTTP resource on HTTPS page. Browser may block silently or warn user.

Source: Google Chrome Security

URL: http://www.loc.gov/text-us-government-work

Modern browsers block or warn about HTTP resources on HTTPS pages. Change the URL to use HTTPS.

Expected: https://www.loc.gov/text-us-government-work
Why this matters

Mixed content — HTTP resource on HTTPS page. Browser may block silently or warn user.

Source: Google Chrome Security

URL: http://www.loc.gov/static/images/favicons/open-graph-logo.png

Modern browsers block or warn about HTTP resources on HTTPS pages. Change the URL to use HTTPS.

Expected: https://www.loc.gov/static/images/favicons/open-graph-logo.png
Why this matters

Mixed content — HTTP resource on HTTPS page. Browser may block silently or warn user.

Source: Google Chrome Security

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

38/100

Site name appears as

Page titleLibrary of Congress
og:site_nameThe Library of Congress
twitter:site—
Organization.name—

Inconsistent — names differ across channels

Brand assets

Favicon

0/15

Social share image

14/20

og:image set; twitter:image missing

Meta completeness

14/20

Organization schema

0/15

Contact info discoverable

5/10

contact page

Findings

  • Brand name differs across channels — users see inconsistent identity
  • Add twitter:image — Twitter falls back to og:image only when it's larger than 300×157
  • No favicon link tags detected — browsers fall back to the generic globe
  • twitter:card 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
Structured Data
Action
No structured data (JSON-LD) found.
REVIEW
No structured data (JSON-LD) found.
Info::
No structured data (JSON-LD) found
Adding structured data helps search engines understand your content and can enable rich results.

Adding structured data helps search engines understand your content and can enable rich results.

Why this matters

Without schema.org markup, your pages can't appear as rich results (stars, FAQs, recipes) in search.

Learn more ▾

Structured data is what unlocks rich snippets — review stars, FAQ accordions, recipe cards, breadcrumbs, etc. — that take up more SERP space and dramatically improve click-through. The schema.org vocabulary is well-documented and JSON-LD is the easiest format.

Source: Google Search Central / schema.org

No structured data found

Structured data (JSON-LD) helps search engines understand your content better. Adding it can improve your search result appearance.

Common types include:

  • WebSite — your site identity and search box
  • Organization — your company information
  • Article — blog posts and news articles
  • Product — e-commerce product pages
  • BreadcrumbList — navigation paths
Learn more at schema.org
A
Open Graph
Open Graph tags are well configured for social sharing.
PASS
Open Graph tags are well configured for social sharing.
Info::
Missing og:url
The og:url tag specifies the canonical URL for the shared content.
Info::
Missing twitter:card
Without twitter:card, Twitter falls back to Open Graph tags. Adding it gives you more control.

The og:url tag specifies the canonical URL for the shared content.

Why this matters

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

Without twitter:card, Twitter falls back to Open Graph tags. Adding it gives you more control.

Why this matters

Without twitter:card, Twitter renders posts as plain text — no preview image, no structured layout.

Learn more ▾

Twitter requires `<meta name="twitter:card" content="summary_large_image">` (or summary) to render share-cards at all. Without it, links appear as raw text and engagement plummets vs cards. Twitter also falls back to og:image if twitter:image isn't set, so configure both.

Source: Twitter Developer Platform

Preview

loc.gov

Home | Library of Congress

The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.

Preview quality · Twitter/X D · 50/100
  • twitter:card — Add <meta name="twitter:card" content="summary_large_image">
  • twitter:title — falling back from og:title
  • twitter:description — falling back from og:description
  • twitter:image — falling back from og:image

  • twitter:card is missing

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

LOC.GOV

Home | Library of Congress

The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.

Preview quality · Facebook B · 80/100

Description will be truncated (157 chars / 155 max)

  • og:title — Home | Library of Congress
  • og:description — The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan...
  • og:image — http://www.loc.gov/static/images/favicons/open-graph-logo.png
  • og:type — article
  • og:url — Add og:url — Recommended — canonical URL for the share
  • og:site_name — The Library of Congress

  • Description will be truncated on Facebook (157 chars, max 155)

    → Tighten og:description to ≤155 characters

Home | Library of Congress

loc.gov

Preview quality · LinkedIn A+ · 95/100

Description will be truncated (157 chars / 150 max)

  • og:title — Home | Library of Congress
  • og:description — The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan...
  • og:image — http://www.loc.gov/static/images/favicons/open-graph-logo.png

  • Description will be truncated on LinkedIn (157 chars, max 150)

    → Tighten og:description to ≤150 characters

loc.gov

Home | Library of Congress

The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.

Preview quality · Slack A+ · 100/100
  • og:title — Home | Library of Congress
  • og:description — The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan...
  • og:image — http://www.loc.gov/static/images/favicons/open-graph-logo.png

Social preview quality

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

B · 81/100
FieldTwitter/XFacebookLinkedInSlack
og:title
og:description
og:image
og:type
og:url
og:site_name
twitter:card———
twitter:title⚠———
twitter:description⚠———
twitter:image⚠———
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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