Platform comparison · lab receipts
Captured 2026-07-22 · PSI mobile · best of 2+25 to +55 PSI points ahead.
1.4-4x faster largest paint.
Four dealer-website platforms. Five real production dealer sites each, verified by the platform's own fingerprint in the served HTML, measured with Google PageSpeed Insights against our two production templates - same test, same day, every site named below. Medians, not cherry-picks.
Median PageSpeed, platform by platform
Google's own test, run on real production sites. Competitor rows are the median of five sites; our rows are the two template sites themselves, exactly as measured.
| Site set | Score (PSI mobile) | LCP (lab) | Sites | Our lead |
|---|---|---|---|---|
| Spif.io template-1.spif-staging.com † | 86/100 | 3.53s | template | baseline |
| Spif.io template-2.spif-staging.com † | 85/100 | 3.63s | template | baseline |
| DealerCenter | 60/100 | 5.01s | 5 | +25.5 pts · 1.4x LCP |
| OverFuel | 51/100 | 9.98s | 5 | +34.5 pts · 2.8x LCP |
| Cars For Sale | 49/100 | 9.88s | 5 | +36.5 pts · 2.8x LCP |
| Motive | 30/100 | 14.37s | 5 | +55.5 pts · 4x LCP |
competitor score and LCP = median of 5 production sites per platform · best of 2 PSI mobile runs per site · captured 2026-07-22 · bar length = that row's score, 0-100 · lab-vs-lab - how we tested
Every site, named
No anonymous aggregates. Each platform's five measured sites, both raw runs per site, and the real-user field verdict where Google has one. Expand any platform.
Spif.io templates median 85.5/100 · 3.58s LCP · n=2 + expand- collapse
- template-1.spif-staging.com Cloudflare Pages (global edge) 86/100 3.53s LCP runs 86 · 86 no field data
- template-2.spif-staging.com Cloudflare Pages (global edge) 85/100 3.63s LCP runs 80 · 85 no field data
spif = production template sites (template-1/template-2.spif-staging.com), not client sites. Staging domains carry no real-user traffic, so Google has no field sample for them, which is why this page compares lab to lab.
DealerCenter median 60/100 · 5.01s LCP · n=5 + expand- collapse
- zoomut.com Zoom Auto Sales, Midvale, UT 60/100 4.41s LCP runs 31 · 60 no field data
- olmakscars.com Olmaks USA, North Miami Beach, FL 72/100 3.81s LCP runs 72 · 69 no field data
- lowmilesmotors.com Low Miles MotorSports, Downey, CA 62/100 15.71s LCP runs 62 · 46 no field data
- autoshowcasesa.com Auto Showcase LLC, San Antonio, TX 47/100 7.04s LCP runs 47 · 47 no field data
- hrautomotors.com H & R Auto Motors, San Antonio, TX 28/100 5.01s LCP runs 28 · 28 field fail
our lead vs this platform: +25.5 points median score · 1.4x median LCP.
platform: DealerCenter (Nowcom) hosted dealer-website product. Attribution fingerprint: WordPress themes on cdn.dealercenterwsstatic.net/wp-content/themes/dws-v3*/ + JS namespace 'DealerCenter||(DealerCenter={}))' + chat-cf.dealercenter.net / imagescf.dealercenter.net service hosts
OverFuel median 51/100 · 9.98s LCP · n=5 + expand- collapse
- fishersimports.com Fishers, IN 68/100 6.56s LCP runs 68 · 53 field pass
- bobruthford.com Dillsburg, PA 51/100 21.13s LCP runs 51 · 51 field fail
- blackwellautos.com Danville, VA 64/100 9.98s LCP runs 64 · 64 field pass
- clementpreowned.com St. Charles / Florissant, MO 45/100 11.37s LCP runs 45 · 45 field fail
- gravityautosroswell.com Roswell, GA 45/100 9.06s LCP runs 45 · 37 field pass
our lead vs this platform: +34.5 points median score · 2.8x median LCP.
platform: OverFuel dealer-website platform (overfuel.com). Attribution fingerprint: <meta name="generator" content="Overfuel"> + assets on static.overfuel.com/dealers/<slug>/
Cars For Sale median 49/100 · 9.88s LCP · n=5 + expand- collapse
- precisionautosalesofnewyork.com Farmingdale, NY 49/100 12.99s LCP runs 49 · 46 no field data
- usedtrucksnc.com Kernersville, NC 43/100 7.08s LCP runs 40 · 43 field pass
- ezautomemphis.net Memphis, TN 42/100 9.88s LCP runs 42 · 42 field pass
- choosecardeal.com Sacramento, CA 68/100 5.21s LCP runs 68 · 39 no field data
- rightawayautosalesco.com Colorado Springs, CO 59/100 9.89s LCP runs 59 · 55 no field data
our lead vs this platform: +36.5 points median score · 2.8x median LCP.
platform: Carsforsale.com dealer-website product (custom-domain sites). Attribution fingerprint: Footer credit 'Powered by Carsforsale.com' (1999-2026 (R) or (C) 2026 TM variants) + vehicle imagery on cdn05.carsforsale.com + signin.carsforsale.com dealer login
Motive median 30/100 · 14.37s LCP · n=5 + expand- collapse
- statelinenissan.com Kansas City, MO 27/100 14.40s LCP runs 26 · 27 field fail
- bouldernissan.com Boulder, CO 34/100 14.37s LCP runs 34 · 34 field fail
- tracyhonda.com Tracy, CA 46/100 36.79s LCP runs 46 · 46 field fail
- kraftnissan.com Tallahassee, FL 26/100 9.53s LCP runs 26 · 26 field fail
- hudsonnissancharleston.com Charleston, SC 30/100 12.99s LCP runs 30 · 26 field fail
our lead vs this platform: +55.5 points median score · 4x median LCP.
platform: Motive dealer-website platform (motivehq.com, formerly Wackk; OEM-certified). No footer credit exists; the platform signs itself via *.app.ridemotive.com asset/API/tenant hosts (ridemotive.com 308-redirects to motivehq.com).. Attribution fingerprint: assets.app.ridemotive.com / api.app.ridemotive.com / images.app.ridemotive.com + per-dealer tenant subdomains <slug>.app.ridemotive.com
How we tested
A comparison is only worth what its method survives. Here is exactly how every number above was produced, including the parts that don't flatter us.
Lab vs lab - framed honestly
same test, both sides, same day
Our templates run on staging domains with no real-user traffic, so Google holds no field (CrUX) sample for them yet. That makes this a lab-vs-lab comparison: the identical PageSpeed Insights mobile test, run by Google's servers on both sides on 2026-07-22. These are not our local runs, and we are not comparing our lab against their field. One number we won't hide: under PSI's mobile throttling our templates' LCP measures ~3.58s, above Google's 2.5s “good” bar. The story of this page is the relative gap, measured identically: +25 to +55 points, 1.4-4x on largest paint.
One more caveat, stated plainly: Both templates carry demo inventory - 12 vehicles each, confirmed live on template-1 and template-2 - not a full production catalog. Production dealer sites run larger real inventories.
How sites were selected
fingerprint-verified, not assumed
Five real production dealer sites per platform, selected from larger hand-verified pools for dealer-type fit and geographic spread. Every candidate's homepage HTML was fetched live and the platform's own fingerprint - footer credit, asset CDN, or generator tag, quoted per platform in the site lists above - confirmed present in the served markup before the site entered the sample. Sites that could not be verified (bot-challenged, unfetchable) were excluded rather than padded in.
The test protocol
best-of-2 favors the competitor
PageSpeed Insights API v5, Lighthouse mobile performance, 2 runs per URL - keep the best. A kept best can only flatter the measured site: lab noise inflates it, never deflates it, so every competitor number above is that site's better face. All 22 URLs - ours included - were measured the same way on 2026-07-22.
GET https://www.googleapis.com/pagespeedonline/v5/runPagespeed ?url=https://<any-site-above>/&strategy=mobile&category=performance&key=<key> # 2 runs per URL, keep the best; compare medians per platform
Why medians, not bests
single runs swing
Lab runs are volatile: the widest pair in this dataset measured 39 and 68 on back-to-back runs of the same URL (choosecardeal.com). That is why every platform figure quoted on this page is a median of five sites - never a single-site best - and why both raw runs for every site are published in the lists above.
The field supplement
where real-user data exists
Lab is the only fair both-sides comparison here, but where Google has real-user field data on the competitor sites we publish the verdict per site above. The strongest signal in this dataset: 5 of 5 measured Motive sites fail Core Web Vitals in real-world field data (28-day p75 of actual Chrome users). Many small independents carry too little traffic for a field sample at all - those are marked “no field data,” not counted against anyone.
Provenance
lab + field data captured 2026-07-22 via the PageSpeed Insights API v5 (Lighthouse mobile / CrUX).
spif = production template sites (template-1/template-2.spif-staging.com), not client sites.
Both templates carry demo inventory - 12 vehicles each, confirmed live on template-1 and template-2 - not a full production catalog. Production dealer sites run larger real inventories.
best-of-2 runs per URL - the kept best favors the measured site.
platform attribution hand-verified in served HTML; fingerprints quoted per platform above.
medians per platform; per-site raw runs published in full. No site was dropped for scoring well.
Evidence build · Spif.io · dataset captured 2026-07-22. Every figure on this page is computed from the published dataset at build time - the page cannot say something the data doesn't.
Already on another platform? Start where you are.
The Spiffy Speed Script works on your current site - one script tag in the head, measured honestly, wins and losses published. And when you want the numbers at the top of this page, that's the platform.