speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

remix.run

https://remix.run/

61 100 100 100 ✓AXE !CWV

Ranks Overall #829 Developer Tooling #17 Site Generators #7

Data from Sep 7, 2026, 7:13 PM UTC old Measured every 2 days · 12 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Wayback Machine

Stack

Fly.io Hosted by Fly.io

Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-08-09 → 2026-09-05).

LCP 1.94 s good
INP 344 ms needs-improvement
CLS 0.010 good

Lighthouse Scores

61
Performance
↓ -2 (-3.2%)
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 44.72 s.

  1. 5.59 s
  2. 11.18 s
  3. 16.77 s
  4. 22.36 s
  5. 27.95 s
  6. 33.54 s
  7. 39.13 s
  8. 44.72 s

Without JavaScript

This page is client rendered.

Nothing was painted until the scripts ran. This is a web performance and robustness issue!

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

78.6% of pixels differ — the page changes substantially. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.84 s 1.72 s ↑ +119 ms (+6.9%) 1.30 s 3.35 s
CLS Cumulative Layout Shift 0 0 → no change 0 0.002
TBT Total Blocking Time 166.97 s 167.80 s ↓ -832 ms (-0.5%) 165.91 s 172.17 s
FCP First Contentful Paint 1.65 s 1.55 s ↑ +96 ms (+6.2%) 1.30 s 2.90 s
Speed Index 7.79 s 6.62 s ↑ +1167 ms (+17.6%) significant 5.99 s 9.56 s
TTFB Time to First Byte 631 ms 667 ms ↓ -36 ms (-5.4%) 600 ms 667 ms

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.

element render delay 186 ms
time to first byte 41 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-08-09 → 2026-09-05).

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 1.94 s good 84% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 344 ms needs-improvement 50.3% good
CLS CWV 0.010 good 99.3% good
FCP 1.96 s needs-improvement 71.4% good
TTFB 1.08 s needs-improvement 65.3% good

Lab LCP vs Field LCP

Lab 1.84 s
Field p75 1.94 s

The lab LCP is 0.95× the field p75 — real users likely have similar hardware or network connectivity to the lab test.

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-09-05 1.94 s 344 ms 0.010 1.96 s 1.08 s
2026-08-29 1.92 s 359 ms 0.010 1.96 s 1.07 s
2026-08-22 1.89 s 340 ms 0.010 1.93 s 1.04 s
2026-08-15 1.85 s 317 ms 0.010 1.88 s 1.02 s
2026-08-08 1.83 s 317 ms 0.010 1.86 s 1.00 s
2026-08-01 1.74 s 315 ms 0.010 1.81 s 947 ms
2026-07-25 1.70 s 335 ms 0.010 1.77 s 932 ms
2026-07-18 1.64 s 356 ms 0.010 1.70 s 891 ms
2026-07-11 1.65 s 362 ms 0.010 1.72 s 880 ms
2026-07-04 1.72 s 367 ms 0.010 1.75 s 873 ms
2026-06-27 1.69 s 356 ms 0.010 1.71 s 829 ms
2026-06-20 1.66 s 321 ms 0 1.69 s 821 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 1.70 MB 1.70 MB ↑ +1.1 kB (+0.1%) 1.10 MB 1.71 MB
Requests 140 140 → no change 140 142
Third-party Weight 3.2 kB 3.2 kB ↓ -4 B (-0.1%) 3.2 kB 3.2 kB
Third-party CPU 4 ms 2 ms ↑ +1 ms (+59.1%) significant 2 ms 4 ms
Unused JS 82.5 kB 82.5 kB → no change 82.5 kB 82.5 kB
Unused CSS 0 B 0 B → no change 0 B 0 B

By resource type

  • other 70.6% 1.20 MB · 3 req
  • script 19% 324 kB · 124 req
  • font 7.4% 126 kB · 2 req
  • image 1.6% 27.3 kB · 7 req
  • document 1% 17.8 kB · 1 req
  • stylesheet 0.3% 5.3 kB · 3 req

Third parties 1 entities

3.2 kB transferred, 4 ms on the main thread.

Fathom Analytics script 3.2 kB · 4 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 179.64 s 180.65 s ↓ -1001 ms (-0.6%) 179.64 s 181.81 s
Long Tasks 20 20 → no change 20 20
DOM Elements 296 296 → no change 295 414
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 0 → no change 0 1
A11y Failures 0 0 → no change 0 0
A11y Failing Nodes 0 0 → no change 0 0

Main thread work

other 174.96 s
script evaluation 2.68 s
style layout 1.44 s
paint composite render 448 ms
parse HTML 73 ms
garbage collection 30 ms
script parse compile 14 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 307 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 7, 2026, 7:13 PM UTC 61 1.84 s 0 166.97 s 1.70 MB 3/3 ±12 2,483 0% 370.1s Wayback
Sep 5, 2026, 3:13 AM UTC 63 1.72 s 0 167.80 s 1.70 MB 3/3 ±31 2,551 +3% 373.2s Wayback
Sep 3, 2026, 10:29 PM UTC 52 3.19 s 0 165.91 s 1.70 MB 3/3 ±33 2,735 +10% 360.4s Wayback
Sep 2, 2026, 8:47 PM UTC 63 1.83 s 0 167.46 s 1.71 MB 3/3 ±16 2,280 -8% 364s Wayback
Sep 1, 2026, 8:36 PM UTC 51 3.35 s 0 167.26 s 1.71 MB 3/3 ±31 2,472 0% 369.7s Wayback
Aug 31, 2026, 5:57 PM UTC 50 3.33 s 0 169.51 s 1.11 MB 3/3 ±20 2,470 0% 464.7s Wayback
Aug 26, 2026, 9:43 AM UTC 50 3.30 s 0 170.91 s 1.11 MB 3/3 ±13 2,319 -7% 449.2s Wayback
Aug 25, 2026, 9:34 AM UTC 59 2.28 s 0 172.17 s 1.11 MB 3/3 ±12 2,478 0% 459s Wayback
Aug 24, 2026, 8:57 AM UTC 61 1.30 s 0.002 171.49 s 1.10 MB 3/3 ±30 3,300 +33% 430.8s Wayback
Aug 23, 2026, 8:28 AM UTC 61 1.80 s 0.002 170.10 s 1.10 MB 3/3 ±16 2,486 0% 467.1s Wayback
Aug 22, 2026, 8:28 AM UTC 62 1.39 s 0.002 172.13 s 1.10 MB 3/3 ±17 2,469 0% 469s Wayback
Aug 21, 2026, 7:41 AM UTC 62 1.65 s 0.002 171.94 s 1.10 MB 3/3 ±30 2,818 +14% 446.1s Wayback