speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

Charts Compare Measurement runs Embed a score Open to Work

nuget.org

https://www.nuget.org/

80PERF 100A11Y 96BEST 92SEO ✓AXE ✓CWV

Ranks Overall #519 Developer Tooling #7 Package Managers #2

Data from Oct 16, 2026, 5:48 AM UTC old Measured every 2 days · 24 runs since Aug 25, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 7.65 s. Compare this filmstrip against another site.

  1. 956 ms
  2. 1.91 s
  3. 2.87 s
  4. 3.71 s
  5. 4.78 s
  6. 5.74 s
  7. 6.69 s
  8. 7.65 s

Lighthouse Scores LAB Simulated

80
Performance
↓ -6 (-7%)
100
Accessibility
no change
96
Best Practices
no change
92
SEO
no change

Metrics LAB FIELD

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-16 → 2026-10-13), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 4.19 s poor ↑ +911 ms (+27.8%) significant 2.59 s – 4.95 s 2.47 s good 75.5% 10% 14.6%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 96 ms good 93.5% 4.8% 1.7%
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 96.1% 0.6% 3.3%
TBT Total Blocking Time 59 ms good ↑ +57 ms (+2850%) significant 2 ms – 66 ms n/a —
FCP First Contentful Paint 3.07 s poor ↓ -64 ms (-2%) 1.51 s – 3.57 s 2.71 s needs work 62.5% 14.7% 22.9%
Speed Index 3.07 s good ↓ -64 ms (-2%) 1.51 s – 4.92 s n/a —
TTFB Time to First Byte 631 ms good ↓ -31 ms (-4.7%) 606 ms – 675 ms 2.16 s poor 46.6% 24.5% 28.9%

LCP Subparts LAB Throttled

The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.

element render delay 3.12 s
time to first byte 593 ms

LCP LAB Simulated vs LCP FIELD

Lab 4.19 s
Field p75 2.47 s

The lab LCP is 1.7× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 487 kB → no change 464 kB – 488 kB
Requests 20 → no change 17 – 20
Third-party Weight 273 kB → no change 251 kB – 274 kB
Third-party CPU 14 ms ↑ +3 ms (+26.1%) 2 ms – 22 ms
Unused JS 94.5 kB → no change 93.9 kB – 94.5 kB
Unused CSS 63.5 kB → no change 63.5 kB – 63.5 kB

By resource type

Type Transfer Share Size Requests
font 42% 198 kB 1
script 37.9% 178 kB 4
stylesheet 15.1% 70.9 kB 2
image 3% 14.3 kB 5
document 1.3% 6.1 kB 1
other 0.6% 2.9 kB 6
Total 487 kB 20

Third parties 4 entities

Entity Transfer Size Main thread Simulated
office.net font 198 kB 0 ms
Bing Ads script 53.5 kB 4 ms
azure.com 22.1 kB 10 ms
Visual Studio 154 B 0 ms
Total 273 kB 14 ms

Without JavaScript

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

Scripts disabled
As rendered

0% of pixels differ — they are identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric Value Change / range Trend
Main Thread Work 689 ms ↑ +195 ms (+39.3%) significant 493 ms – 696 ms
Long Tasks 3 ↑ +1 (+50%) 1 – 4
DOM Elements 131 → no change 131 – 131
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

Task Time Share Duration Simulated
other 37% 257 ms
script evaluation 35% 241 ms
style layout 12% 86 ms
script parse compile 8% 56 ms
parse HTML 5% 32 ms
paint composite render 3% 17 ms
Total 689 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 199 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 1 of 24 audits

  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 1 node

Best Practices failures 1 of 19 audits

  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item

SEO failures 1 of 10 audits

  • meta-description — Document does not have a meta description

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache http/1.1

Measurement log

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-10-10 2.43 s 95 ms 0 2.65 s 2.12 s
2026-10-03 2.47 s 95 ms 0 2.76 s 2.20 s
2026-09-26 2.29 s 95 ms 0 2.58 s 1.97 s
2026-09-19 2.33 s 95 ms 0 2.61 s 2.00 s
2026-09-12 2.50 s 96 ms 0 2.78 s 2.20 s
2026-09-05 2.62 s 100 ms 0 2.82 s 2.25 s
2026-08-29 2.69 s 104 ms 0 2.99 s 2.46 s
2026-08-22 2.79 s 103 ms 0 3.07 s 2.47 s
2026-08-15 2.70 s 99 ms 0 2.98 s 2.41 s
2026-08-08 2.66 s 96 ms 0 2.98 s 2.49 s
2026-08-01 2.74 s 96 ms 0 3.14 s 2.67 s
2026-07-25 2.97 s 98 ms 0 3.51 s 2.89 s

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 16, 2026, 5:48 AM UTC 80 4.19 s 0 59 ms 487 kB 3/3 ±19 2,486 0% 46.1s Wayback
Oct 14, 2026, 1:04 AM UTC 86 3.28 s 0 2 ms 487 kB 3/3 ±18 4,028 +62% 42.2s Wayback
Oct 8, 2026, 11:23 PM UTC 84 3.66 s 0 15 ms 487 kB 3/3 ±20 2,432 -2% 43.9s Wayback
Oct 6, 2026, 7:09 PM UTC 92 3.37 s 0 16 ms 487 kB 3/3 ±8 3,146 +26% 42.2s Wayback
Oct 3, 2026, 8:44 PM UTC 93 3.11 s 0 18 ms 465 kB 3/3 ±6 2,644 +6% 41.6s Wayback
Sep 30, 2026, 8:42 PM UTC 80 4.25 s 0 52 ms 487 kB 3/3 ±8 2,484 0% 44.6s Wayback
Sep 28, 2026, 6:42 PM UTC 80 4.20 s 0 63 ms 487 kB 3/3 ±9 2,314 -7% 46.7s Wayback
Sep 25, 2026, 4:38 PM UTC 80 4.06 s 0 66 ms 487 kB 3/3 ±21 2,502 +1% 47.5s Wayback
Sep 23, 2026, 3:18 PM UTC 85 4.03 s 0 40 ms 487 kB 3/3 ±33 3,230 +30% 47.2s Wayback
Sep 21, 2026, 3:00 PM UTC 96 2.59 s 0 5 ms 488 kB 3/3 ±5 3,561 +43% 42.3s Wayback
Sep 19, 2026, 8:33 AM UTC 83 3.77 s 0 17 ms 487 kB 3/3 ±13 2,521 +1% 44.8s Wayback
Sep 16, 2026, 7:01 PM UTC 83 3.78 s 0 14 ms 487 kB 3/3 ±11 2,504 +1% 45.5s Wayback
Sep 14, 2026, 6:11 PM UTC 81 4.03 s 0 55 ms 487 kB 3/3 ±19 2,504 +1% 46.6s Wayback
Sep 12, 2026, 3:08 PM UTC 93 3.13 s 0 22 ms 487 kB 3/3 ±6 2,482 0% 44.4s Wayback
Sep 10, 2026, 10:43 AM UTC 81 4.11 s 0 51 ms 487 kB 3/3 ±11 2,474 -1% 27s Wayback
Sep 8, 2026, 5:39 AM UTC 81 4.03 s 0 51 ms 487 kB 3/3 ±6 2,484 0% 25.2s Wayback
Sep 6, 2026, 12:58 AM UTC 80 4.18 s 0 26 ms 488 kB 3/3 ±4 3,252 +31% 24.7s Wayback
Sep 4, 2026, 9:24 PM UTC 84 3.67 s 0 16 ms 487 kB 3/3 ±18 2,503 +1% 22.7s Wayback
Sep 3, 2026, 7:26 PM UTC 95 2.80 s 0 29 ms 464 kB 3/3 ±24 2,465 -1% 25.2s Wayback
Sep 2, 2026, 5:37 PM UTC 77 4.48 s 0 50 ms 487 kB 3/3 ±19 2,605 +5% 34s Wayback
Sep 1, 2026, 1:16 PM UTC 83 3.82 s 0 31 ms 487 kB 3/3 ±13 2,309 -7% 23.3s Wayback
Aug 31, 2026, 10:49 AM UTC 92 3.28 s 0 24 ms 488 kB 3/3 ±1 2,332 -6% 23.1s Wayback
Aug 26, 2026, 7:04 PM UTC 72 4.95 s 0 52 ms 488 kB 3/3 ±9 2,461 -1% 27.8s Wayback
Aug 25, 2026, 4:37 PM UTC 96 2.67 s 0 18 ms 487 kB 3/3 ±15 2,352 -5% 22.6s Wayback