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https://prometheus.io

SEO

· 7 checks — Canonical, meta, content depth, internal links, image SEO, and hreflang rolled into one auditable list.
SCORE
92
GRADE
A
FIX
0
REVIEW
1
PASS
5
INFO
1

Cross-tab audit — SEO, performance, crawlability, mobile, structured data

Checks
7
5 PASS 1 REVIEW
C
Content Depth
Action
390 words, Very Difficult
REVIEW
390 words, Very Difficult
Info::
Page has 390 words of content
Info::
Text-to-HTML ratio is 2%
Very low ratio suggests heavy framework overhead or boilerplate.
Info::
Reading level: Very Difficult (grade 13)
390 words

Good depth

Reading level

Very Easy
Easy
Fairly Easy
Standard
Fairly Difficult
Difficult
Very Difficult

Grade 13

Text-to-HTML Ratio

2% text 98% HTML

3 KB / 134 KB

Very low ratio suggests heavy framework overhead or boilerplate.

Why this matters

Informational: ratio of visible text bytes to total HTML bytes. Very low ratios suggest excessive markup overhead.

A+
Canonical URL
Properly configured
PASS
Properly configured
Info::
Canonical tag present
Got: https://prometheus.io/
Info::
Canonical is self-referencing
Info::
Canonical matches final URL after redirects
Info::
Canonical target returns 200
Canonical URL Configured
Page URL https://prometheus.io Canonical https://prometheus.io/ Match Self-referencing (correct) Target 200 ✓
A+
Meta Tags
Title optimized
PASS
Title optimized
Info::
Page title is set
Got: Prometheus - Monitoring system & time series database
Info::
Title length (53 chars) is optimal
Info::
Title and H1 have very different wording
Alignment helps users confirm they've reached the right page.
Title

"Prometheus - Monitoring system & time series database"

53 characters Optimal ✓
Title: Prometheus - Monitoring system & time series database
H1: Open source metrics and monitoring for your systems and services
Match: Very different
Robots: Indexable (no restrictions)

Alignment helps users confirm they've reached the right page.

Why this matters

Title and H1 disagree significantly — Google may treat one as the canonical topic and the other as off-topic, weakening ranking.

Learn more ▾

Title is the SERP headline; H1 is the on-page headline. They should describe the same page. Large divergence (different topics, different keywords) signals confusion and Google may rewrite the title in SERP. Align both to the same primary topic.

Source: Google Search Central / on-page SEO

A+
Image SEO
5 images, 5 descriptive filenames
PASS
5 images, 5 descriptive filenames
Info::
All images have descriptive filenames
5 descriptive
0 hash-based
0 generic
5 total
All images have descriptive filenames and proper SEO attributes.

See Accessibility tab for detailed alt text quality analysis.

A+
Schema Markup Audit
Per-type completeness vs Schema.org requirements + rich-result eligibility
PASS

No structured data detected

Without JSON-LD or microdata, this page can't qualify for any of Google's rich result formats. Even basic Organization or WebSite schema is a quick win.

Hreflang
0 hreflang tags
INFO
0 hreflang tags

No hreflang tags detected.

Hreflang tags are only needed for multilingual or multi-regional sites.

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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