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

blog.glitch.com

https://blog.glitch.com/

100 95 100 100 !AXE ✓CWV

Ranks Overall #650 Built Awesome #520

Data from Sep 4, 2026, 10:44 AM UTC old Measured once a week · 3 runs since Aug 20, 2026

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

The measuring machine was faster than most in this project.

Lighthouse benchmark index was 4,555, 84% faster than this project's median of 2,481. CPU-bound metrics — TBT, TTI, main thread work — are affected by this and may have moved without the site changing at all.

Stack

Eleventy 3.0.0 Built with Eleventy 3.0.0

Lighthouse Scores

100
Performance
no change
95
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Metrics Lighthouse, mobile Chrome UX Report

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 (2026-08-06 → 2026-09-02), url-level.

Metric Lab Lighthouse Field Chrome UX Report
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 982 ms good ↓ -27 ms (-2.7%) 982 ms – 1.01 s 1.02 s good 93.3% 4.1% 2.7%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 105 ms good 89.5% 10.2% 0.4%
CLS CWV Cumulative Layout Shift 0.024 good → no change 0.024 – 0.024 0 good 88% 5.5% 6.5%
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms n/a —
FCP First Contentful Paint 982 ms good ↓ -27 ms (-2.7%) 982 ms – 1.01 s 944 ms good 89.5% 6.6% 4%
Speed Index 982 ms good ↓ -27 ms (-2.7%) 982 ms – 1.01 s n/a —
TTFB Time to First Byte 639 ms good ↓ -16 ms (-2.4%) 639 ms – 665 ms 712 ms good 77.7% 14.9% 7.4%

LCP Subparts lab observed, unthrottled

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

time to first byte 54 ms
resource load duration 37 ms
element render delay 8 ms
resource load delay 7 ms

Lab LCP vs Field LCP Chrome UX Report

Lab 982 ms
Field p75 1.02 s

The lab LCP is 0.96× the field p75 — real users likely have similar hardware or network connectivity to the lab test.

Page weight

Metric Value Change / range Trend
Page Weight 539 kB ↑ +504 B (+0.1%) 539 kB – 539 kB
Requests 13 → no change 13 – 13
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 0 B → no change 0 B – 0 B

By resource type

  • font 66% 346 kB · 1 req
  • image 31% 162 kB · 10 req
  • document 3% 15.5 kB · 1 req

Page health

Metric Value Change / range Trend
Main Thread Work 173 ms ↓ -60 ms (-25.7%) significant 173 ms – 237 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 176 → no change 176 – 176
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 2 → no change 2 – 2
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 1 → no change 1 – 1

Main thread work

other 80 ms
style layout 51 ms
paint composite render 17 ms
script evaluation 15 ms
parse HTML 9 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 2 rules, 332 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node

Accessibility failures 1 of 19 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-09-05 1.02 s 105 ms 0 945 ms 712 ms
2026-08-29 1.02 s 104 ms 0 946 ms 713 ms
2026-08-22 1.01 s 105 ms 0 930 ms 701 ms
2026-08-15 1.01 s 105 ms 0 939 ms 697 ms
2026-08-08 999 ms 105 ms 0 933 ms 689 ms
2026-08-01 1.02 s 106 ms 0 949 ms 693 ms
2026-07-25 1.04 s 105 ms 0 966 ms 706 ms
2026-07-18 1.07 s 103 ms 0 998 ms 733 ms
2026-07-11 1.10 s 102 ms 0 1.02 s 763 ms
2026-07-04 1.10 s 101 ms 0 1.02 s 773 ms
2026-06-27 1.11 s 102 ms 0 1.03 s 789 ms
2026-06-20 1.09 s 105 ms 0 1.00 s 773 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 4, 2026, 10:44 AM UTC 100 982 ms 0.024 0 ms 539 kB 3/3 ±0 4,555 +84% 21.6s Wayback
Aug 28, 2026, 1:26 AM UTC 100 1.01 s 0.024 0 ms 539 kB 3/3 ±0 2,493 0% 21.2s Wayback
Aug 20, 2026, 7:09 PM UTC 100 1.01 s 0.024 0 ms 539 kB 3/3 ±4 2,446 -1% 21.3s Wayback

Embed this score

Use this web component to show blog.glitch.com's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site! 

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://blog.glitch.com/"></speedlify2-score>