Mobile SEO Agency
Mobile SEO tested on real devices, not Chrome emulation.
Mobile-first indexing has been Google's default since 2024. Your mobile UX is your SEO. We test on real devices.
- Real-device testing, not Chrome emulation
- Mobile CWV tracked separately from desktop
- 44x44px touch-target compliance audits
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SEMrush agency
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SEO is all we do, and we're good at it
Most mobile SEO audits run in Chrome DevTools emulation.Then ship to users on three-year-old Androids on 4G.We test on the devices real users actually use.
Most mobile SEO audits run in Chrome DevTools emulation. Then ship to users on three-year-old Androids on 4G. We test on the devices real users actually use.
LASEO is a mobile SEO agency that runs WebPageTest on real iPhone 12, iPhone 15, Pixel 7 and mid-range Samsung devices on throttled 4G connections. Google's mobile-first indexing has been the default since July 2024, which means your mobile rendering, your mobile Core Web Vitals and your mobile schema are the version Googlebot stores. We audit, fix and monitor accordingly.
See mobile SEO outcomesHow a mobile SEO engagement runs
How a LASEO mobile SEO engagement runs
Five distinct phases over a 90-day engagement, each producing artefacts your team can re-run and own. No proprietary methodology, no black box.
- 01
Mobile-first audit (week 1)
Lighthouse Mobile mode plus WebPageTest runs on real iPhone 12, iPhone 15 Pro, Pixel 7 and Galaxy A54 on throttled 4G. Googlebot Smartphone user agent crawl using Screaming Frog. CrUX field data split mobile vs desktop. Deliverable: 25-page mobile audit PDF.
- 02
Mobile Core Web Vitals deep dive (week 2-3)
LCP investigated per template, usually solved by serving smaller hero images, srcset with mobile breakpoints, and fetchpriority on the hero. INP traced to heavy JS on tap: usually filter chips, accordions, third-party scripts. CLS tracked through layout shift sources on mobile fold.
- 03
Touch and tap target fixes (week 3-4)
Every interactive element below 44x44px (iOS) or 48x48dp (Android) flagged and fixed via PR. Spacing between adjacent targets validated at minimum 8px to prevent mis-taps. Form fields padded for thumb reach.
- 04
Mobile schema and sitelinks (week 5-6)
BreadcrumbList, SiteNavigationElement, Product and FAQPage schema validated against Googlebot Smartphone. Internal linking patterns optimised so Google can construct mobile sitelinks in branded SERPs. Mobile-specific viewport meta tag validated.
- 05
Continuous mobile monitoring (week 7+)
CrUX dashboard set up with mobile-only filters. WebPageTest scheduled runs on real devices weekly. Alerts when mobile LCP, INP or CLS regress against the 75th percentile threshold. Monthly mobile performance scorecard delivered to your CMO.
Think of us asyour fractional head of mobile SEO.
We sit between your front-end team and your SEO lead. LCP optimised per template on mobile, not just desktop. INP investigated when third-party scripts block the main thread on a four-core Android. Touch targets validated on every PR. Mobile sitelinks tuned through structured navigation. The mobile-specific work most SEO agencies skip because they only test on the M2 MacBook on office wifi.
What mobile SEO actually means in 2026
Mobile SEO, explained without the responsive-design platitudes
Mobile SEO is not 'make your site responsive'. That is table stakes from 2015. Modern mobile SEO is about mobile-first indexing, mobile Core Web Vitals, touch interaction quality, and the gap between what Chrome emulation reports and what real users on real devices experience.
Mobile-first indexing is the default since 2024
Google completed the mobile-first indexing rollout in July 2024. Googlebot Smartphone is the primary crawler for almost all sites. Your desktop content, schema and internal links are the secondary signal. If your mobile version hides content in accordions or omits internal links, that content effectively does not exist for ranking purposes.
Mobile Core Web Vitals diverge from desktop
LCP on mobile is typically 1.5 to 3 times slower than desktop because of slower CPU, slower network and smaller cache. INP is worse on mobile because tap events trigger more main-thread work than mouse hovers. CLS can be worse on mobile due to dynamic ads in tight viewports. Track them separately.
Chrome DevTools emulation lies
DevTools mobile emulation uses your laptop's CPU, just throttled. A real Pixel 7 has different memory pressure, different network behaviour, and different rendering quirks. WebPageTest with a real device pool catches what DevTools misses, especially around third-party scripts and INP.
AMP is mostly dead in 2026
Google removed the AMP requirement for Top Stories in 2021, and most publishers have deprecated their AMP versions. Building new AMP pages in 2026 is rarely worth the engineering cost. Focus instead on shipping fast non-AMP mobile pages with proper Core Web Vitals.
Touch target sizing has real measurable impact
Apple HIG specifies 44x44 points minimum for tap targets. Material Design specifies 48x48dp. Targets below these thresholds increase mis-tap rate, hurt UX signals, and now factor into Lighthouse's Accessibility category which Googlebot reads via the Page Experience signal.
Separate mobile domains (m.example.com) are anti-pattern
Maintaining m.example.com as a separate URL set creates duplicate content risk, canonical complexity, and double the maintenance burden. Google has recommended responsive single-URL setups since 2015. If you are still on a separate mobile subdomain, the first work is consolidating to responsive.
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Why LASEO vs alternatives
Mobile SEO compared honestly
DIY tools, generalist agencies and freelancers all have a place. Here is where LASEO fits for mobile SEO specifically.
Mobile as a Lighthouse score
- Chrome DevTools mobile emulation on a MacBook on office wifi. Maybe a single Lighthouse Mobile run.
- Lighthouse Mobile reports lab data from your local machine. Useful but misses real-user CPU constraints, real network variability and INP from real tap interactions.
- One blended Core Web Vitals number per origin in GSC.
- Rarely audited. Maybe a comment in the audit doc.
- Schema is treated as desktop-first. Validated in Chrome only.
- Not done. Audit looks at desktop HTML.
Mobile as the primary surface
- WebPageTest on real iPhone 12, iPhone 15 Pro, Pixel 7 and Galaxy A54 on throttled 4G. Plus Lighthouse Mobile, plus Chrome DevTools emulation as a baseline.
- Lighthouse Mobile combined with CrUX field data and real-device WebPageTest runs. Lab plus field plus real hardware, so the score actually predicts user experience.
- Split mobile vs desktop. Split per template (PDP, PLP, blog, homepage). 75th percentile thresholds tracked weekly. INP traced to specific scripts.
- Every interactive element measured against 44x44px (iOS) and 48x48dp (Android). Spacing between targets validated. Fix list with screenshots and CSS recommendations.
- Schema validated against Googlebot Smartphone user agent. BreadcrumbList, SiteNavigationElement and product schema deployed and tested mobile-side.
- Site crawled with Googlebot Smartphone user agent. Mobile rendered HTML compared to desktop. Hidden content, missing internal links and accordion-gated copy flagged.
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We get LCP under 2.5s, INP under 200ms, CLS under 0.1 in field data. Fixed in your codebase, measured in CrUX.
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Mobile SEO engagements at scale
Mobile SEO that moved Core Web Vitals into green on real devices
What our mobile SEO clients say
Mobile SEO in their own words
Our Lighthouse mobile score was 92. Real users on Android were getting LCPs over 5 seconds. LASEO ran WebPageTest on actual Pixel devices, traced it to a hero image without srcset, and fixed it in a PR. Mobile LCP dropped to 2.1 seconds the same week.
We had been told for years that AMP was dead but nobody told us what to do instead. LASEO killed our AMP pages, fixed the canonicals back to the responsive versions, and our mobile organic traffic went up 28 percent the next quarter because Google started serving the fast non-AMP page in sitelinks.
Their touch target audit caught 47 interactive elements below the 44px Apple HIG threshold across our checkout. Mobile conversion rate went up 6 percent after the fixes shipped. No other SEO agency had ever measured mobile UX at that level.
Our Lighthouse mobile score was 92. Real users on Android were getting LCPs over 5 seconds. LASEO ran WebPageTest on actual Pixel devices, traced it to a hero image without srcset, and fixed it in a PR. Mobile LCP dropped to 2.1 seconds the same week.
We had been told for years that AMP was dead but nobody told us what to do instead. LASEO killed our AMP pages, fixed the canonicals back to the responsive versions, and our mobile organic traffic went up 28 percent the next quarter because Google started serving the fast non-AMP page in sitelinks.
Their touch target audit caught 47 interactive elements below the 44px Apple HIG threshold across our checkout. Mobile conversion rate went up 6 percent after the fixes shipped. No other SEO agency had ever measured mobile UX at that level.
Honest answers about mobile SEO 
What buyers actually ask before hiring a mobile SEO agency in 2026.
Mobile-first indexing means Googlebot uses your mobile version as the primary source for indexing and ranking. Google completed the rollout in July 2024, so this has been the default for almost every site for nearly two years. Practically, it means: the content present in your mobile HTML is the content that gets ranked. If you hide content in accordions, lazy-load it behind a tap, or omit it on mobile to save space, that content is weaker as a ranking signal than it would have been pre-2024. Your schema, internal links and structured data need to be present and crawlable under the Googlebot Smartphone user agent.
Mobile SEO audit
Bring a mobile SEO problemto a senior engineer.
30 minutes with a LASEO mobile SEO engineer. We will not pitch. We will diagnose your three biggest mobile blockers (usually LCP, INP and a hidden touch target issue), recommend the order to fix them, and tell you whether we are the right partner.
