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SEO insights
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Guides, deep-dives, and practical strategies on technical SEO, Core Web Vitals, AI search visibility, and everything it takes to rank — written by the team that builds SEO Site Signals.
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Modern Image Format Test: Find JPG and PNG Still Costing You LCP
Run the free Modern Image Format Test on a live URL to see which images are still JPG, PNG, or GIF instead of WebP or AVIF—and how much weight you can cut before you chase another Core Web Vital.
Unsafe Cross-Origin Links Test: Catch target=_blank Without noopener
Open external links in a new tab without rel="noopener" and you leave a reverse-tabnabbing gap. Run the free Unsafe Cross-Origin Links Test, then fix bare target=_blank markup.
AI Visibility Tracking: See Whether ChatGPT, Gemini, and Grok Mention Your Brand
Measure whether ChatGPT, Gemini, and Grok mention, cite, and recommend your brand—with BYOK multi-engine AI visibility tracking from PositionMySite.
Largest Contentful Paint Test: Find the Element That Delays the Real Load
Run the free Largest Contentful Paint Test on a live URL to measure LCP, identify the largest above-the-fold element, and fix what actually delays perceived load.
Render Blocking Resources Test: Find CSS and JS That Delay First Paint
Run the free Render Blocking Resources Test on a live URL to find CSS and JS that delay first paint, then fix the critical path before you chase LCP.
Noindex Checker After Search Console’s False Not-Indexed Blip
On Sep 8–9 2026, Search Console briefly labeled live pages as Crawled - currently not indexed. John Mueller called it a short reporting blip. Before you panic-edit, run a free noindex checker on the live URL.
First Contentful Paint Test: Check FCP Before You Chase LCP
Measure FCP on a live URL with the free First Contentful Paint Test before you burn a sprint chasing LCP in the wrong place.
Robots.txt Checker After Applebot-Extended Ranking Clarification
Apple clarified on Sep 7 2026 that Applebot-Extended site rules are not considered in Search ranking. Verify your live robots.txt with a free checker.
Meta Title Checker: Fix the Tag After AI Overviews Expand
Google’s Aug 27–28 2026 AI Overviews auto-expand into AI Mode–style answers. When you still earn a classic blue link, use a free meta title checker (50–60 chars) to fix CTR.