Website Grader and Mobile Load Filmstrip
Watch your website load frame by frame on a customer phone, measure Core Web Vitals, and see whether missing conversion tags, unlinked phone numbers, or AI crawler blocks are costing you leads.
Step 1 of 4: Connecting to target domain and inspecting HTML, robots.txt, llms.txt, and sitemap.xml...
Watch your site load on a customer phone
Every frame below shows what a mobile prospect sees from the moment they tap your search listing or ad until your page finishes rendering.
Mobile PageSpeed Scores and Core Web Vitals
Conversion Tracking, Schema, and AI Search Readiness
Tap-to-Call Phone Links (tel:)
Phone number appears in page text, but no clickable tel: link is wired for mobile callers.
Installed Ad and Analytics Tags
Schema.org JSON-LD Markup
No LocalBusiness or Service JSON-LD schema found to connect this page to Google Business Profile.
AI Crawlers and llms.txt
GPTBot and ClaudeBot blocked in robots.txt; no /llms.txt index present at the root domain.
What These Bottlenecks Cost Your Business
- Render-blocking stylesheets and scripts delaying first paint Web design
Visitors on mobile connections stare at a blank screen for over two seconds before your headline or phone number can paint, driving up paid-click bounce rates.
- Missing Google Ads and Meta conversion tracking tags Analytics and paid ads
Without verified conversion tags firing on calls and form submissions, ad platforms optimize for cheap clicks instead of revenue-generating customers.
- Missing LocalBusiness schema and blocked AI search crawlers SEO and AI search
When structured entity markup is absent and AI crawlers are disallowed in robots.txt, search engines and AI assistants skip your business in local recommendations.
Unlock the Desktop PageSpeed Benchmark and Complete 22-Point Technical Checklist
Enter your business details once to unlock your side-by-side Desktop vs Mobile Core Web Vitals table, all 7 advertising and analytics tag IDs (GTM, GA4, Google Ads, Meta Pixel, Microsoft UET, TikTok, LinkedIn), full on-page SEO tag inspection, and per-bot AI crawler status (GPTBot, OAI-SearchBot, Google-Extended, ClaudeBot, PerplexityBot).
Mobile vs Desktop Benchmark and Full 22-Point Technical Audit
| Diagnostic Metric | Mobile Result | Desktop Result | OVERTOP Standard |
|---|---|---|---|
| Performance Score | 54 / 100 | 79 / 100 | 100 / 100 |
| Accessibility Score | 78 / 100 | 78 / 100 | 100 / 100 |
| Best Practices Score | 92 / 100 | 92 / 100 | 100 / 100 |
| Technical SEO Score | 82 / 100 | 82 / 100 | 100 / 100 |
| Largest Contentful Paint (LCP) | 4.8 s | 1.9 s | Under 1.5 s |
| Total Blocking Time (TBT) | 640 ms | 190 ms | 0 ms |
| Cumulative Layout Shift (CLS) | 0.180 | 0.095 | 0.000 |
| Check Category and Signal | Status | Detected Details and Commercial Impact |
|---|---|---|
| Google Tag Manager (GTM) | Missing | No GTM container found in page HTML |
Unlock 5 Daily Runs Per Tool and Deeper Diagnostic Data
Enter your business details once to unlock 5 daily runs per tool (up to 15 runs per day across all tools on Overtop Media Digital Marketing) and permanent shareable result snapshots.
What a Specialist at Overtop Media Digital Marketing Would Do Next
Our web development and SEO specialists rebuild slow render paths, restore missing conversion tracking, and engineer pages that hit 100 on PageSpeed Insights.
Why mobile render speed and tag integrity decide your cost per lead
When a homeowner or commercial buyer clicks your search listing or paid advertisement, a silent clock starts ticking on their phone. Industry research published on Google web.dev Core Web Vitals documentation confirms that Largest Contentful Paint (LCP), Interaction to Next Paint (INP), and Cumulative Layout Shift (CLS) directly measure whether a visitor experiences your site as fast and trustworthy or slow and unstable.
Most business websites fail that test before the visitor ever reads a word. Bloated page-builder themes, uncompressed desktop photos served to mobile screens, and third-party tracking scripts injected synchronously in the document head stall the browser for four to seven seconds. When you pay for traffic through Google Ads management or Local Services Ads, every second of blank mobile screen turns paid clicks into abandoned sessions.
At Overtop Media Digital Marketing, our web design and engineering specialists hold every page we build to an uncompromising standard: 100 out of 100 across Performance, Accessibility, Best Practices, and SEO on Google PageSpeed Insights on both mobile and desktop devices.
How our specialists turn website diagnostics into measurable client growth
Sub-second mobile render paths
Instead of stacking caching plugins onto a slow theme, our engineers serve static edge HTML, responsive AVIF and WebP image pairs sized for cellular connections, and inline font subsets. Your headline, trust signals, and tap-to-call button paint on the very first frame so mobile callers never wait.
Interaction-gated conversion tracking
Most agencies face a false trade-off: install Google Tag Manager, GA4, Google Ads, Meta Pixel, and Microsoft UET and watch mobile PageSpeed drop into the 60s, or strip tags and fly blind. Our analytics and conversion tracking engineers gate third-party scripts behind real user interaction and server-side pipelines, capturing every phone call and form lead while preserving a 100 PageSpeed score.
Entity schema and AI search visibility
Ranking across the Charlotte metro and Carolina markets now requires more than basic meta tags. Our technical SEO specialists align your page content with validated LocalBusiness, Service, and FAQPage JSON-LD schema, link it with your Google Business Profile, verify that AI search crawlers are allowed in robots.txt, and maintain a clean /llms.txt directory so both organic and AI search engines recommend your business.
Frequently Asked Questions About Website Grader
Why does mobile load time matter more than a desktop speed score?
Most local service searches and paid social clicks happen on smartphones over cellular connections. If your headline and tap-to-call button take four or five seconds to appear on a customer phone, prospects bounce back to Google and call the next competitor before your page finishes rendering, even if you paid for the click.
What does the frame-by-frame mobile filmstrip show?
The filmstrip captures real snapshots of your page across the mobile loading timeline from zero seconds through Largest Contentful Paint. Instead of looking at abstract millisecond numbers, you can play back the exact visual delay a customer experiences before your brand, headline, and phone number become usable.
How do missing tracking tags affect Google Ads and Meta Ads performance?
Modern bidding algorithms rely on conversion feedback from Google Tag Manager, GA4, Google Ads conversion tags, Meta Pixel, and Microsoft UET. When those tags are missing or misconfigured, ad platforms optimize for cheap clicks instead of booked jobs and phone calls, inflating your cost per lead.
Why does this grader check robots.txt for AI crawlers and llms.txt?
Many security plugins and legacy agency setups block GPTBot, OAI-SearchBot, Google-Extended, ClaudeBot, or PerplexityBot in robots.txt without the owner realizing it. Blocking search-grounding crawlers or lacking clear entity structure and an llms.txt index prevents AI assistants from citing and recommending your business.
How does Overtop Media Digital Marketing achieve 100 on PageSpeed Insights without removing analytics or design?
Our web engineering team builds static-first architectures with responsive AVIF imagery, inline font subsets, reserved layout dimensions, and interaction-gated third-party scripts. That allows our clients to run full conversion tracking, rich visuals, and call attribution while scoring 100 across Performance, Accessibility, Best Practices, and SEO on mobile and desktop.