PluginProbe
ThinkRank AI SEO – AI SEO Plugin for WordPress: Schema, XML Sitemaps, Meta Tags, Search Console & Local SEO / 2.11.0
ThinkRank AI SEO – AI SEO Plugin for WordPress: Schema, XML Sitemaps, Meta Tags, Search Console & Local SEO v2.11.0
2.11.0 2.10.0 2.9.0 2.8.0 2.7.0 2.6.0 2.5.0 2.4.0 2.3.0 2.2.0 2.1.1 2.1.0 2.0.2 2.0.1 2.0.0 1.32.0 1.31.0 1.30.0 1.29.0 1.28.0 1.27.0 1.26.0 1.25.0 trunk 1.0.0 All 52 releases
← All changes | includes/ai/class-seo-score-calculator.php +496 -31 2.0.2 → 2.11.0 View file →
@@ -41,8 +41,41 @@
41 41 */
42 42 private Database $database;
43 43
44 44 /**
45 + * Memoised collected performance measurement, and whether it was resolved.
46 + *
47 + * Two factors read it and both may be asked for on every post in a list, so
48 + * the lookup happens once per calculator. `null` is a real answer here — the
49 + * separate flag keeps "not looked up yet" distinct from "nothing measured".
50 + *
51 + * @since 2.3.1
52 + * @var array|null
53 + */
54 + private ?array $measured_performance = null;
55 +
56 + /**
57 + * @since 2.3.1
58 + * @var bool
59 + */
60 + private bool $measured_performance_resolved = false;
61 +
62 + /**
63 + * Length bands the editor scores against, in characters.
64 + *
65 + * Public so every surface that judges a title or description — the editor
66 + * score and the Bulk Snippets problem filter — reads one set of numbers.
67 + * Before these existed the bands were literals inside the scoring methods,
68 + * and a second screen would have had to copy them and drift (#727).
69 + *
70 + * @since 2.8.0
71 + */
72 + public const TITLE_OPTIMAL_MIN = 35;
73 + public const TITLE_OPTIMAL_MAX = 60;
74 + public const DESCRIPTION_OPTIMAL_MIN = 120;
75 + public const DESCRIPTION_OPTIMAL_MAX = 160;
76 +
77 + /**
45 78 * 2025 SEO scoring factors (Q1 2025 Google Algorithm)
46 79 * Based on First Page Sage research and Google's latest updates
47 80 *
48 81 * @var array
@@ -107,8 +140,9 @@
107 140 'grade' => $result['grade'],
108 141 ]];
109 142 $result['keyword_checks'] = $this->analyze_keyword_checks($content_data, $metadata, $keywords);
110 143 }
144 + $result['keywords'] = $this->keyword_placements($content_data, $metadata, $keywords);
111 145
112 146 return $result;
113 147 }
114 148
@@ -218,8 +252,9 @@
218 252 $best['target_keyword'] = $best_keyword;
219 253 $best['target_keywords'] = $keywords;
220 254 $best['keyword_results'] = $per_keyword;
221 255 $best['keyword_checks'] = $this->analyze_keyword_checks($content_data, $metadata, $keywords);
256 + $best['keywords'] = $this->keyword_placements($content_data, $metadata, $keywords);
222 257
223 258 return $best;
224 259 }
225 260
@@ -234,15 +269,15 @@
234 269 * @param string[] $keywords Target keywords.
235 270 * @return array<string,array{passed:bool,matched_keywords:string[]}>
236 271 */
237 272 private function analyze_keyword_checks(array $content_data, array $metadata, array $keywords): array {
238 - $title = strtolower((string) ($metadata['title'] ?? $content_data['title'] ?? ''));
239 - $description = strtolower((string) ($metadata['description'] ?? ''));
240 - $content = strtolower(wp_strip_all_tags((string) ($content_data['content'] ?? '')));
273 + $title = self::lower((string) ($metadata['title'] ?? $content_data['title'] ?? ''));
274 + $description = self::lower((string) ($metadata['description'] ?? ''));
275 + $content = self::lower(self::plain_text((string) ($content_data['content'] ?? '')));
241 276
242 277 $alts = '';
243 278 foreach ((array) ($content_data['images'] ?? []) as $image) {
244 - $alts .= ' ' . strtolower((string) ($image['alt'] ?? ''));
279 + $alts .= ' ' . self::lower((string) ($image['alt'] ?? ''));
245 280 }
246 281
247 282 // Build a searchable slug haystack from the post's OWN slug — never the
248 283 // full URL path. The path carries ancestors, category bases and date
@@ -251,17 +286,9 @@
251 286 // way: an unpublished post has no pretty permalink (get_permalink()
252 287 // returns ?p=123), so the path held no slug at all and every draft
253 288 // scored "no match" until it was published. Hyphens/underscores become
254 289 // spaces so multi-word keywords can match.
255 - $slug_source = (string) ($content_data['slug'] ?? '');
256 - if ($slug_source === '') {
257 - // Draft with no slug assigned yet: score what WordPress would
258 - // generate from the title, which is what the editor shows as the
259 - // proposed URL — so the check reads the same before and after
260 - // publishing instead of flipping.
261 - $slug_source = sanitize_title((string) ($content_data['title'] ?? ''));
262 - }
263 - $slug = strtolower(str_replace(['-', '_'], ' ', $slug_source));
290 + $slug = self::lower(self::slug_haystack($content_data));
264 291
265 292 $haystacks = [
266 293 'title' => trim($title),
267 294 'meta_description' => trim($description),
@@ -273,10 +300,9 @@
273 300 $checks = [];
274 301 foreach ($haystacks as $location => $haystack) {
275 302 $matched = [];
276 303 foreach ($keywords as $keyword) {
277 - $needle = strtolower(trim($keyword));
278 - if ($needle !== '' && $haystack !== '' && strpos($haystack, $needle) !== false) {
304 + if ($this->keyword_matches($haystack, self::lower(trim($keyword)))) {
279 305 $matched[] = $keyword;
280 306 }
281 307 }
282 308 $checks[$location] = [
@@ -288,8 +314,288 @@
288 314 return $checks;
289 315 }
290 316
291 317 /**
318 + * The keyword placements the editor draws one gauge segment for, in the
319 + * order a reader meets them (#729).
320 + *
321 + * @since 2.11.0
322 + * @var string[]
323 + */
324 + public const PLACEMENTS = ['title', 'meta_description', 'slug', 'first_paragraph', 'subheading', 'content', 'image_alt'];
325 +
326 + /**
327 + * Characters of plain text read as the opening when the content has no
328 + * paragraph tag.
329 + *
330 + * @since 2.11.0
331 + */
332 + private const OPENING_CHARS = 300;
333 +
334 + /**
335 + * Where each focus keyword is placed, keyword by keyword (#729).
336 + *
337 + * analyze_keyword_checks() answers "does ANY keyword appear here" for
338 + * five places; this answers "where does THIS keyword appear" for seven,
339 + * so the editor can show each keyword's own gauge. Same matcher, so a
340 + * keyword counts as a word (not a fragment) and a keyword in a script
341 + * written without spaces (Thai, Chinese, Japanese) still matches.
342 + *
343 + * `where` names the heading or alt text that matched, so the editor can
344 + * say which one.
345 + *
346 + * @since 2.11.0
347 + *
348 + * @param array $content_data Content analysis data.
349 + * @param array $metadata Post metadata (title, description).
350 + * @param string[] $keywords Focus keywords.
351 + * @return array<int, array{keyword: string, passed: int, total: int, placements: array<string, array{passed: bool, where: string}>}>
352 + */
353 + public function keyword_placements(array $content_data, array $metadata, array $keywords): array {
354 + $html = (string) ($content_data['content'] ?? '');
355 + $plain = self::lower(self::plain_text($html));
356 +
357 + $headings = [];
358 + $source = isset($content_data['headings']) && is_array($content_data['headings']) ? $content_data['headings'] : $this->extract_headings($html);
359 + foreach ($source as $heading) {
360 + $text = trim((string) ($heading['text'] ?? ''));
361 + if ((int) ($heading['level'] ?? 0) >= 2 && '' !== $text) {
362 + $headings[] = $text;
363 + }
364 + }
365 +
366 + $alts = [];
367 + foreach ((array) ($content_data['images'] ?? []) as $image) {
368 + $alt = trim((string) ($image['alt'] ?? ''));
369 + if ('' !== $alt) {
370 + $alts[] = $alt;
371 + }
372 + }
373 +
374 + $single = [
375 + 'title' => self::lower((string) ($metadata['title'] ?? $content_data['title'] ?? '')),
376 + 'meta_description' => self::lower((string) ($metadata['description'] ?? '')),
377 + 'slug' => self::lower(self::slug_haystack($content_data)),
378 + 'first_paragraph' => self::lower(self::opening($html)),
379 + 'content' => $plain,
380 + ];
381 +
382 + $out = [];
383 + foreach ($keywords as $keyword) {
384 + $needle = self::lower(trim((string) $keyword));
385 + $placements = [];
386 +
387 + foreach (self::PLACEMENTS as $placement) {
388 + if ('subheading' === $placement || 'image_alt' === $placement) {
389 + $where = '';
390 + foreach ('subheading' === $placement ? $headings : $alts as $text) {
391 + if ($this->keyword_matches(self::lower($text), $needle)) {
392 + $where = $text;
393 + break;
394 + }
395 + }
396 + $placements[$placement] = ['passed' => '' !== $where, 'where' => $where];
397 + continue;
398 + }
399 +
400 + $placements[$placement] = ['passed' => $this->keyword_matches($single[$placement], $needle), 'where' => ''];
401 + }
402 +
403 + $out[] = [
404 + 'keyword' => (string) $keyword,
405 + 'passed' => count(array_filter(array_column($placements, 'passed'))),
406 + 'total' => count(self::PLACEMENTS),
407 + 'placements' => $placements,
408 + ];
409 + }
410 +
411 + return $out;
412 + }
413 +
414 + /**
415 + * The post's own slug as searchable text: hyphens and underscores become
416 + * spaces so a multi-word keyword can match, and a slug WordPress
417 + * percent-encoded (Thai, Cyrillic, Chinese) is decoded, or it could never
418 + * match a keyword typed in that script.
419 + *
420 + * Never the full URL path: the path carries ancestors, category bases and
421 + * date segments, so a child of /clinical-trials/ reported "keyword in slug"
422 + * for a page actually slugged `contact-us`. An unpublished post has no
423 + * pretty permalink either, so the path held no slug at all.
424 + *
425 + * @param array $content_data Content analysis data.
426 + * @return string
427 + */
428 + private static function slug_haystack(array $content_data): string {
429 + $slug = (string) ($content_data['slug'] ?? '');
430 + if ('' === $slug) {
431 + // Draft with no slug assigned yet: score what WordPress would
432 + // generate from the title, which is what the editor shows as the
433 + // proposed URL — so the check reads the same before and after
434 + // publishing instead of flipping.
435 + $slug = sanitize_title((string) ($content_data['title'] ?? ''));
436 + }
437 +
438 + return trim(str_replace(['-', '_'], ' ', rawurldecode($slug)));
439 + }
440 +
441 + /**
442 + * The opening of the content: its first paragraph with text, or the first
443 + * few hundred characters when it has none. Counted in characters, not
444 + * words, so a language written without spaces is not read as one word.
445 + *
446 + * @param string $html Content HTML.
447 + * @return string Plain text.
448 + */
449 + private static function opening(string $html): string {
450 + if (preg_match_all('/<p\b[^>]*>(.*?)<\/p>/isu', $html, $matches)) {
451 + foreach ($matches[1] as $paragraph) {
452 + $text = self::collapse_whitespace(wp_strip_all_tags($paragraph));
453 + if ('' !== $text) {
454 + return $text;
455 + }
456 + }
457 + }
458 +
459 + $text = self::plain_text($html);
460 +
461 + return function_exists('mb_substr') ? mb_substr($text, 0, self::OPENING_CHARS) : substr($text, 0, self::OPENING_CHARS);
462 + }
463 +
464 + /**
465 + * Content as plain text, with a space where each tag was. wp_strip_all_tags()
466 + * alone joins neighbouring blocks — "…coffee grinder</h3><p>A good…" became
467 + * "coffee grinderA good" — so a keyword at the end of a heading or a
468 + * paragraph was no longer a word and did not match.
469 + *
470 + * @param string $html Content HTML.
471 + * @return string
472 + */
473 + private static function plain_text(string $html): string {
474 + $spaced = preg_replace('/<[^>]+>/', ' $0 ', $html);
475 +
476 + return self::collapse_whitespace(wp_strip_all_tags(null === $spaced ? $html : (string) $spaced));
477 + }
478 +
479 + /**
480 + * Runs of whitespace down to one space.
481 + *
482 + * The `/u` pass is the one that understands a multibyte space, but
483 + * preg_replace() answers null on bytes that are not valid UTF-8 rather than
484 + * throwing — and casting that null to a string blanked the haystack, so a
485 + * post carrying one mojibake byte (a Latin-1 paste, an old import) reported
486 + * every keyword as missing from its body, its opening, and every
487 + * subheading. The gauge said 0/7 and told the author to add a keyword that
488 + * was already there.
489 + *
490 + * Falls back to the byte-wise collapse, which is what this did before the
491 + * multibyte work added the modifier. Same reasoning keyword_matches()
492 + * already records for its own PCRE failure: a pattern PCRE refuses must not
493 + * be reported as a confident "no match".
494 + *
495 + * @param string $text Text to collapse.
496 + * @return string
497 + */
498 + private static function collapse_whitespace(string $text): string {
499 + $collapsed = preg_replace('/\s+/u', ' ', $text);
500 +
501 + if (null === $collapsed) {
502 + $collapsed = preg_replace('/\s+/', ' ', $text);
503 + }
504 +
505 + return trim(null === $collapsed ? $text : (string) $collapsed);
506 + }
507 +
508 + /**
509 + * Lowercase in any script. strtolower() only folds ASCII, so "Кофе" never
510 + * matched "кофе".
511 + *
512 + * @param string $text Text.
513 + * @return string
514 + */
515 + private static function lower(string $text): string {
516 + return function_exists('mb_strtolower') ? mb_strtolower($text, 'UTF-8') : strtolower($text);
517 + }
518 +
519 + /**
520 + * Scripts written without spaces between words.
521 + *
522 + * @since 2.1.0
523 + * @var string
524 + */
525 + private const SCRIPTIO_CONTINUA = '/[\p{Han}\p{Hiragana}\p{Katakana}\p{Thai}\p{Lao}\p{Khmer}\p{Myanmar}]/u';
526 +
527 + /**
528 + * Whether a keyword appears in a haystack as a word rather than as a
529 + * fragment of a longer one.
530 + *
531 + * The five keyword checks used a plain strpos(), so any substring hit
532 + * counted: "test coronavirus" matched "la|test coronavirus|news", "art"
533 + * matched "start", "cat" matched "category". The panel then confidently
534 + * reported a keyword placement that does not exist (#416). Same class of
535 + * problem #71 fixed in the Image SEO rewriter, and the same remedy.
536 + *
537 + * Both arguments are expected lowercased already.
538 + *
539 + * @since 2.1.0
540 + *
541 + * @param string $haystack Text to search.
542 + * @param string $needle Keyword, lowercased and trimmed.
543 + * @return bool
544 + */
545 + private function keyword_matches(string $haystack, string $needle): bool {
546 + if ($needle === '' || $haystack === '') {
547 + return false;
548 + }
549 +
550 + if (!$this->supports_word_boundaries($needle)) {
551 + return strpos($haystack, $needle) !== false;
552 + }
553 +
554 + $matched = preg_match('/\b' . preg_quote($needle, '/') . '\b/u', $haystack);
555 +
556 + // PCRE refusing the pattern — invalid UTF-8 in the keyword, a
557 + // backtrack limit — must not be reported as a confident "no match".
558 + // Fall back to the behaviour this replaced rather than invent a
559 + // negative the user cannot explain.
560 + if ($matched === false) {
561 + return strpos($haystack, $needle) !== false;
562 + }
563 +
564 + return $matched === 1;
565 + }
566 +
567 + /**
568 + * Whether \b can express "this keyword, as a word" for this keyword.
569 + *
570 + * It asserts a transition between a word and a non-word character, which
571 + * only means something where words are separated. Two cases where it is
572 + * not, both verified against PCRE rather than assumed:
573 + *
574 + * - the keyword's own edges are not word characters ("c++", "#seo"), so
575 + * no boundary can assert there and a real match is lost;
576 + * - scripts written without spaces, where the neighbouring characters
577 + * are word characters too — "冠状病毒" inside "最新冠状病毒新闻" is a
578 + * legitimate match that \b never sees.
579 + *
580 + * Accented Latin and Cyrillic need no special handling: PHP's /u modifier
581 + * turns on Unicode character properties, so "café" correctly does not
582 + * match "cafés" and "коронавирус" does not match "коронавирусный".
583 + *
584 + * @since 2.1.0
585 + *
586 + * @param string $needle Keyword, lowercased and trimmed.
587 + * @return bool
588 + */
589 + private function supports_word_boundaries(string $needle): bool {
590 + if (preg_match(self::SCRIPTIO_CONTINUA, $needle)) {
591 + return false;
592 + }
593 +
594 + return preg_match('/^\w/u', $needle) === 1 && preg_match('/\w$/u', $needle) === 1;
595 + }
596 +
597 + /**
292 598 * Compute the SEO score for a single target keyword.
293 599 *
294 600 * @param array $content_data Content analysis data
295 601 * @param array $metadata Post metadata
@@ -552,9 +858,9 @@
552 858 $title_length = mb_strlen($title);
553 859
554 860 // 2025 length optimization (6 points). 60 characters is the recommended
555 861 // maximum for best SERP visibility before Google truncates the title.
556 - if ($title_length >= 35 && $title_length <= 60) {
862 + if ($title_length >= self::TITLE_OPTIMAL_MIN && $title_length <= self::TITLE_OPTIMAL_MAX) {
557 863 $score += 6;
558 864 } elseif ($title_length >= 25 && $title_length <= 75) {
559 865 $score += 4;
560 866 $suggestions[] = 'Optimize title length to 35-60 characters for better SERP visibility';
@@ -1851,20 +2157,101 @@
1851 2157 * @param array $content_data Content analysis data
1852 2158 * @return array Scoring result
1853 2159 */
1854 2160 private function score_mobile_experience(array $content_data): array {
1855 - // Mobile experience is theme/site-level, not controlled by post content.
1856 - // Award full credit (benefit of the doubt) instead of a fixed partial
1857 - // that caps every post's ceiling.
2161 + $max = $this->scoring_factors['mobile_experience'];
2162 +
2163 + // Mobile experience is theme/site-level, not controlled by post content
2164 + // — but the plugin already measures it. When a mobile Lighthouse score
2165 + // has been collected, score against it; the "benefit of the doubt" below
2166 + // is for sites nobody has measured, not for sites measured as slow.
2167 + $performance_score = $this->measured_performance_score();
2168 +
2169 + if ($performance_score === null) {
2170 + return [
2171 + 'score' => $max,
2172 + 'max_score' => $max,
2173 + 'suggestions' => ['Ensure mobile-first design and fast loading on mobile devices'],
2174 + 'details' => ['mobile_score' => 'Assumed adequate', 'measured' => false],
2175 + ];
2176 + }
2177 +
2178 + $score = (int) round($max * $performance_score / 100);
2179 +
1858 2180 return [
1859 - 'score' => $this->scoring_factors['mobile_experience'],
1860 - 'max_score' => $this->scoring_factors['mobile_experience'],
1861 - 'suggestions' => ['Ensure mobile-first design and fast loading on mobile devices'],
1862 - 'details' => ['mobile_score' => 'Assumed adequate'],
2181 + 'score' => $score,
2182 + 'max_score' => $max,
2183 + 'suggestions' => $score < $max
2184 + ? ['Improve mobile page speed: the last PageSpeed run scored ' . $performance_score . '/100 on mobile']
2185 + : [],
2186 + 'details' => [
2187 + 'mobile_score' => $performance_score,
2188 + 'measured' => true,
2189 + 'source' => 'pagespeed_mobile',
2190 + ],
1863 2191 ];
1864 2192 }
1865 2193
1866 2194 /**
2195 + * The last collected mobile Lighthouse score, or null when unmeasured.
2196 + *
2197 + * Memoised per instance: compute_score() asks twice, and a post-list screen
2198 + * scores a page of posts at a time.
2199 + *
2200 + * Every failure — no performance module, no collected row, an unreadable
2201 + * table — resolves to null, which the callers read as "not measured" and
2202 + * answer with the full-credit fallback. A site is never penalised for
2203 + * ThinkRank being unable to look.
2204 + *
2205 + * @since 2.3.1
2206 + * @return int|null Score 0-100, or null when nothing has been collected.
2207 + */
2208 + private function measured_performance_score(): ?int {
2209 + $measurement = $this->measured_performance();
2210 +
2211 + if ($measurement === null || !isset($measurement['performance_score'])) {
2212 + return null;
2213 + }
2214 +
2215 + $score = $measurement['performance_score'];
2216 +
2217 + if (!is_numeric($score)) {
2218 + return null;
2219 + }
2220 +
2221 + return (int) round(max(0, min(100, (float) $score)));
2222 + }
2223 +
2224 + /**
2225 + * The last collected mobile measurement, or null when there is none.
2226 + *
2227 + * @since 2.3.1
2228 + * @return array|null { core_web_vitals: array, performance_score: float|null }
2229 + */
2230 + private function measured_performance(): ?array {
2231 + if ($this->measured_performance_resolved) {
2232 + return $this->measured_performance;
2233 + }
2234 +
2235 + $this->measured_performance_resolved = true;
2236 +
2237 + if (!class_exists('ThinkRank\\SEO\\Performance_Monitoring_Manager')) {
2238 + return null;
2239 + }
2240 +
2241 + try {
2242 + $manager = new \ThinkRank\SEO\Performance_Monitoring_Manager();
2243 + // Mobile deliberately: Google indexes mobile-first, and it is the
2244 + // device the mobile_experience factor is named after.
2245 + $this->measured_performance = $manager->get_stored_performance_measurement('mobile');
2246 + } catch (\Throwable $e) {
2247 + $this->measured_performance = null;
2248 + }
2249 +
2250 + return $this->measured_performance;
2251 + }
2252 +
2253 + /**
1867 2254 * Score core web vitals - 2025 version (3 points)
1868 2255 *
1869 2256 * @param array $content_data Content analysis data
1870 2257 * @return array Scoring result
@@ -1869,20 +2256,98 @@
1869 2256 * @param array $content_data Content analysis data
1870 2257 * @return array Scoring result
1871 2258 */
1872 2259 private function score_core_web_vitals(array $content_data): array {
1873 - // Core Web Vitals are a runtime/performance signal, not derivable from
1874 - // post content. Award full credit (benefit of the doubt) rather than a
1875 - // fixed partial that caps every post's ceiling.
2260 + $max = $this->scoring_factors['core_web_vitals'];
2261 +
2262 + // Not derivable from post content — but it is measured, and the audit
2263 + // stores LCP, INP and CLS with a rating each. Score against those when
2264 + // they exist; fall back to the benefit of the doubt when they do not.
2265 + $rated = $this->measured_vitals_score();
2266 +
2267 + if ($rated === null) {
2268 + return [
2269 + 'score' => $max,
2270 + 'max_score' => $max,
2271 + 'suggestions' => ['Optimize Core Web Vitals: LCP, INP, and CLS for better user experience'],
2272 + 'details' => ['vitals_status' => 'Assumed adequate', 'measured' => false],
2273 + ];
2274 + }
2275 +
2276 + $score = (int) round($max * $rated['average'] / 100);
2277 +
1876 2278 return [
1877 - 'score' => $this->scoring_factors['core_web_vitals'],
1878 - 'max_score' => $this->scoring_factors['core_web_vitals'],
1879 - 'suggestions' => ['Optimize Core Web Vitals: LCP, INP, and CLS for better user experience'],
1880 - 'details' => ['vitals_status' => 'Assumed adequate'],
2279 + 'score' => $score,
2280 + 'max_score' => $max,
2281 + // Gated on the measurement, not the rounded score: two good metrics
2282 + // and one needing improvement averages 88.33, which rounds to the
2283 + // full 3 of 3 and used to swallow the suggestion naming the metric
2284 + // that is actually failing.
2285 + 'suggestions' => !empty($rated['failing'])
2286 + ? ['Optimize Core Web Vitals: ' . implode(', ', $rated['failing']) . ' below target on mobile']
2287 + : [],
2288 + 'details' => [
2289 + 'vitals_status' => $rated['statuses'],
2290 + 'measured' => true,
2291 + 'source' => 'pagespeed_mobile',
2292 + ],
1881 2293 ];
1882 2294 }
1883 2295
1884 2296 /**
2297 + * Rate the collected Core Web Vitals, or null when none were measured.
2298 + *
2299 + * Reuses the per-metric score the performance module already assigns
2300 + * (good 100, needs improvement 65, poor 30) rather than inventing a second
2301 + * scale, so the SEO score and the performance card cannot disagree about
2302 + * whether a metric is healthy.
2303 + *
2304 + * Metrics with no stored value — fcp is not always collected — are skipped
2305 + * rather than counted as failures.
2306 + *
2307 + * @since 2.3.1
2308 + * @return array|null { average: float, statuses: array, failing: string[] }
2309 + */
2310 + private function measured_vitals_score(): ?array {
2311 + $measurement = $this->measured_performance();
2312 + $vitals = $measurement['core_web_vitals'] ?? null;
2313 +
2314 + if (!is_array($vitals)) {
2315 + return null;
2316 + }
2317 +
2318 + $scores = [];
2319 + $statuses = [];
2320 + $failing = [];
2321 +
2322 + // The three Google ranks on. fcp is diagnostic and not a Core Web Vital.
2323 + foreach (['lcp', 'inp', 'cls'] as $metric) {
2324 + $data = $vitals[$metric] ?? null;
2325 +
2326 + if (!is_array($data) || !isset($data['value'], $data['score']) || $data['value'] === null) {
2327 + continue;
2328 + }
2329 +
2330 + $scores[] = (float) $data['score'];
2331 + $statuses[$metric] = $data['status'] ?? 'unknown';
2332 +
2333 + if (($data['status'] ?? '') !== 'good') {
2334 + $failing[] = strtoupper($metric);
2335 + }
2336 + }
2337 +
2338 + if (empty($scores)) {
2339 + return null;
2340 + }
2341 +
2342 + return [
2343 + 'average' => array_sum($scores) / count($scores),
2344 + 'statuses' => $statuses,
2345 + 'failing' => $failing,
2346 + ];
2347 + }
2348 +
2349 + /**
1885 2350 * Score internal linking - declining importance (1 point)
1886 2351 *
1887 2352 * @param array $content_data Content analysis data
1888 2353 * @return array Scoring result
@@ -1912,9 +2377,9 @@
1912 2377 $suggestions = [];
1913 2378
1914 2379 // Meta description check
1915 2380 $meta_desc = $metadata['description'] ?? '';
1916 - if (!empty($meta_desc) && mb_strlen($meta_desc) >= 120 && mb_strlen($meta_desc) <= 160) {
2381 + if (!empty($meta_desc) && mb_strlen($meta_desc) >= self::DESCRIPTION_OPTIMAL_MIN && mb_strlen($meta_desc) <= self::DESCRIPTION_OPTIMAL_MAX) {
1917 2382 $score += 0.5;
1918 2383 } else {
1919 2384 $suggestions[] = 'Add a compelling meta description (120-160 characters)';
1920 2385 }