Obsolete presentational tags signal unmaintained markup and are handled inconsistently across browsers.
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How this rule is weighted
- Importance
- 2 / 10
- How much this matters relative to other rules.
- Confidence
- SPECIFICATION
- A standard says so: HTML, WCAG, an RFC or Google's own documentation.
- Severity
- info
- How the finding is presented when it fails.
- Scoring
- Counts
- A failure costs points in its category.
Impact is importance multiplied by the confidence tier’s weight — SPECIFICATION 1.0, RESEARCH 0.7, EMERGING 0.3, EXPERIMENTAL 0.1. Two rules backed by the same class of evidence therefore always carry the same weight, which is what makes the score reproducible rather than hand-tuned.
Questions about this rule
- Does SEO_DEPRECATED_TAGS affect my score?
- Yes. It is an importance 2 rule at SPECIFICATION confidence, so a failure costs 2 × 1 points of impact in the SEO category before that category is normalised to 100.
- What does SPECIFICATION confidence mean?
- A standard says so: HTML, WCAG, an RFC or Google's own documentation. Confidence is a declared tier rather than a per-rule number, so every rule backed by the same class of evidence carries the same weight - which is what makes the score reproducible instead of hand-tuned.
- How do I check SEO_DEPRECATED_TAGS on my own site?
- Paste your URL into the box above and it runs only this rule, usually in a couple of seconds. It is also included in the SEO checker and in a full scan.
Tags
- seo
- markup
Related SEO rules
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- Title tag existsEvery indexable page must have a non-empty <title> element.SEO_TITLE_EXISTS
- X-Robots-Tag header does not block indexingAn X-Robots-Tag: noindex response header removes the page from search results just as effectively as the meta tag, but is invisible in the page source.SEO_XROBOTS_INDEXABLE
- Googlebot-specific noindex absentA googlebot-specific noindex removes the page from Google while leaving other engines unaffected - easy to miss.SEO_NO_INLINE_NOINDEX_COMMENT
- Mobile viewport declaredWithout a viewport meta tag mobile browsers render at desktop width and zoom out, which Google treats as not mobile-friendly.SEO_VIEWPORT_META
- Title length within Google's recommended rangeTitles significantly longer than ~60 characters are commonly truncated in search results.SEO_TITLE_LENGTH