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https://computerhistory.org

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
68
GRADE
D
FIX
4
REVIEW
2
PASS
7
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
69
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
77
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.49 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.85 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

388 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.009

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

1.53 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

4.93 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
15
7 PASS 2 REVIEW 4 FIX
F
Page Weight Budget
Action
3.8 MB transferred, 146 requests
FIX
3.8 MB transferred, 146 requests
Warning::
Page weighs 11.2 MB (3.8 MB transferred)
Warning::
JavaScript is 2.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.2 MB
Warning::
Images are 1.2 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.2 MB
Warning::
146 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.80 g CO2 per page load
3.8 MB / 2.4 MB budget
3.8 MB transferred
146 requests
0.80 g CO2 per page load
JavaScript 2.2 MiB 59%
Images 1.2 MiB 32%
CSS 148.8 KiB 4%
Fonts 114.6 KiB 3%
HTML 82.4 KiB 2%
Other 5.7 KiB 0%
Other 3.5 KiB 0%
Other 2.4 KiB 0%
Other 648 B 0%
0 2.4 MB 4.9 MB
Over budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
JS Execution Cost
Action
2393ms total JS execution
FIX
2393ms total JS execution
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 629ms CPU time
Warning::
Unattributable: 353ms CPU time
Info::
https://js.hs-analytics.net/analytics/177688980000...: 244ms CPU time
Info::
https://computerhistory.org/: 214ms CPU time
Info::
https://www.googletagmanager.com/gtag/destination?...: 197ms CPU time
Warning::
Third-party scripts: 2107ms (88% of total)

Main Thread Breakdown

Script Evaluation 61% Other 16% Script Parsing & Compilation 10% Style & Layout 9%
ScriptTotalScriptingParse/CompileParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js629ms479ms107ms3rd
Unattributable353ms9ms0ms3rd
https://js.hs-analytics.net/analytics/1776889800000/22740101.js244ms149ms5ms3rd
https://computerhistory.org/214ms22ms8ms1st
https://www.googletagmanager.com/gtag/destination?id=AW-1065537524&cx=c&gtm=4e64k0197ms180ms15ms3rd
https://www.googletagmanager.com/gtag/js?id=G-XZEKL3FD6N&cx=c&gtm=4e64k0190ms136ms14ms3rd
https://www.googletagmanager.com/gtag/js?id=G-KKQR0RS2FE&cx=c&gtm=4e64k0157ms136ms20ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MLN7JPS126ms110ms13ms3rd
https://www.googletagmanager.com/gtag/js?id=G-B7C1ZW7V2R&cx=c&gtm=4e64k0119ms101ms17ms3rd
https://connect.facebook.net/signals/config/1645398289372783?v=2.9.303&r=stable&domain=computerhistory.org&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&ex_m=104%2C205%2C154%2C22%2C72%2C73%2C145%2C68%2C67%2C11%2C162%2C90%2C16%2C138%2C127%2C39%2C75%2C78%2C134%2C159%2C164%2C8%2C4%2C5%2C7%2C6%2C3%2C91%2C101%2C165%2C170%2C219%2C62%2C186%2C187%2C55%2C276%2C30%2C74%2C231%2C230%2C229%2C23%2C33%2C103%2C61%2C10%2C63%2C97%2C98%2C99%2C105%2C130%2C31%2C29%2C132%2C133%2C129%2C128%2C155%2C76%2C158%2C156%2C157%2C50%2C60%2C123%2C15%2C161%2C45%2C263%2C264%2C262%2C26%2C27%2C28%2C48%2C146%2C77%2C112%2C18%2C20%2C44%2C40%2C42%2C41%2C83%2C92%2C96%2C110%2C144%2C147%2C46%2C111%2C24%2C21%2C119%2C69%2C36%2C149%2C148%2C150%2C141%2C139%2C25%2C35%2C59%2C109%2C160%2C70%2C17%2C152%2C114%2C81%2C66%2C19%2C85%2C86%2C116%2C84%2C136%2C135%2C34%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%2C52%2C213%2C107%2C131%2C80%2C121%2C54%2C47%2C49%2C113%2C120%2C126%2C58%2C64%2C151%2C115%2C37%2C32%2C53%2C56%2C100%2C163%2C1%2C124%2C14%2C122%2C12%2C2%2C57%2C93%2C65%2C118%2C89%2C88%2C166%2C167%2C94%2C95%2C9%2C125%2C102%2C51%2C142%2C87%2C79%2C71%2C117%2C106%2C43%2C143%2C0%2C82%2C137%2C140%2C153%2C38%2C108%2C13%2C16892ms75ms16ms3rd

Showing top 10 of 11 scripts

F
JS Bundles
Action
45 scripts, 1.3 MB unused
FIX
45 scripts, 1.3 MB unused
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 156 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 156 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 156 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 156 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 156 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.3 MB
1323 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB156 KB (43%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB156 KB (43%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB156 KB (43%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB156 KB (43%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB156 KB (43%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-NNWSXJ9HYJ&cx=c&gtm=4e64k0178 KB114 KB (64%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-B7C1ZW7V2R&cx=c&gtm=4e64k0174 KB69 KB (40%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-KKQR0RS2FE&cx=c&gtm=4e64k0175 KB69 KB (40%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-XZEKL3FD6N&cx=c&gtm=4e64k0174 KB69 KB (40%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MLN7JPS152 KB63 KB (42%)✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

F
Page Weight Inventory
Action
146 resources · 3.8 MB · 1.3 MB savings available
FIX
146 resources · 3.8 MB · 1.3 MB savings available
Warning::
Page weight 2.8 MB over 1MB target
Got: 3.8 MB Expected: ≤ 1 MB
Info::
~1.3 MB of savings available
Warning::
78 third-party resources (57% of weight)
Info::
3 resources over 200KB
146 resources · 3.8 MiB · 78 third-party 2.8 MiB over 1MB target
JavaScript 59% · 2.2 MiB
Image 32% · 1.2 MiB
CSS 4% · 148.8 KiB
Font 3% · 114.6 KiB
Document 2% · 83.5 KiB
Other 0% · 9.3 KiB

~1.3 MiB of savings available

Remove unused JavaScript: 1.3 MiB
B
Third-Party Impact
57% third-party, 0 ms blocking
REVIEW
57% third-party, 0 ms blocking
Warning::
Third-party code accounts for 57% of page weight (2.2 MiB of 3.8 MiB)
Info::
Third-party blocking time is low (0 ms)
43%
57%
First-party Third-party
C
Image Optimization
Action
48 images, 0 KB saveable
REVIEW
48 images, 0 KB saveable
Warning::
https://computerhistory.org/wp-content/uploads/202... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/themes/bsds... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/uploads/201... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/uploads/201... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/uploads/202... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/uploads/201... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/uploads/202... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/uploads/201... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/themes/bsds... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/uploads/201... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://computerhistory.org/wp-content/themes/bsds... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
48 images 1.2 MB
0 oversized -0 KB
47 legacy format
11 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
5 fonts (115 KB)
PASS
5 fonts (115 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

115 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.5 s LCP 1.9 shttps://computerhistory.org/wp-content/themes/bsdstarter/src/fonts/Fonts/1475724/f4bdc42f-e58e-43ea-afec-ae4999e2fa73.woff2f4bdc42f-e58e-43ea-afec... https://computerhistory.org/wp-content/themes/bsdstarter/src/fonts/Fonts/1475724/f4bdc42f-e58e-43ea-afec-ae4999e2fa73.woff2 — 17.8 KiB — 26 ms — font-display: swaphttps://computerhistory.org/wp-content/themes/bsdstarter/src/fonts/Fonts/5591097/6ceed230-b2b3-4422-b048-4aa11687430a.woff26ceed230-b2b3-4422-b048... https://computerhistory.org/wp-content/themes/bsdstarter/src/fonts/Fonts/5591097/6ceed230-b2b3-4422-b048-4aa11687430a.woff2 — 30.9 KiB — 19 ms — font-display: swaphttps://computerhistory.org/wp-content/themes/bsdstarter/src/fonts/Fonts/5591154/55fa1cf8-baf8-4bf8-9718-b096b1dd231f.woff255fa1cf8-baf8-4bf8-9718... https://computerhistory.org/wp-content/themes/bsdstarter/src/fonts/Fonts/5591154/55fa1cf8-baf8-4bf8-9718-b096b1dd231f.woff2 — 32.0 KiB — 26 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 42 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 0 B — 49 ms — font-display: swap
f4bdc42f-e58e-43ea-afec... woff2 swap
Size 18 KB
Load time 26 ms
Start 814 ms
Risk FOUT — text flashes from fallback to web font
6ceed230-b2b3-4422-b048... woff2 swap
Size 31 KB
Load time 19 ms
Start 815 ms
Risk FOUT — text flashes from fallback to web font
55fa1cf8-baf8-4bf8-9718... woff2 swap
Size 32 KB
Load time 26 ms
Start 815 ms
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 42 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 0 KB
Load time 49 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

A
HTTP Caching
max-age=86400 (1 day)
PASS
max-age=86400 (1 day)
Info::
Cache-Control header is set
Got: public, max-age=86400
Info::
Effective TTL: 1 day (max-age=86400)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=86400

DirectiveValueMeaning
public—Any cache may store this response
max-age86400Cache for 1 day
Effective TTL: 86400 seconds
Network Waterfall
146 requests over 3456ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.5 s LCP 1.9 shttps://computerhistory.org// https://computerhistory.org/ — 200 — 26.1 KiB — 54 ms — h3https://computerhistory.org/wp-content/themes/bsdstarter/assets/css/mediaelementplayer.min.css/wp-content/themes/bsdstarter/asset... https://computerhistory.org/wp-content/themes/bsdstarter/assets/css/mediaelementplayer.min.css — 200 — 3.7 KiB — 32 ms — h3https://computerhistory.org/wp-content/themes/bsdstarter/style.css?v=2026-04-01/wp-content/themes/bsdstarter/style... https://computerhistory.org/wp-content/themes/bsdstarter/style.css?v=2026-04-01 — 200 — 32.5 KiB — 53 ms — h3https://computerhistory.org/wp-includes/css/dist/block-library/style.min.css?ver=6.8.3/wp-includes/css/dist/block-library... https://computerhistory.org/wp-includes/css/dist/block-library/style.min.css?ver=6.8.3 — 200 — 19.9 KiB — 38 ms — h3https://computerhistory.org/wp-includes/css/dist/components/style.min.css?ver=6.8.3/wp-includes/css/dist/components/st... https://computerhistory.org/wp-includes/css/dist/components/style.min.css?ver=6.8.3 — 200 — 17.1 KiB — 37 ms — h3https://computerhistory.org/wp-includes/css/dist/preferences/style.min.css?ver=6.8.3/wp-includes/css/dist/preferences/s... https://computerhistory.org/wp-includes/css/dist/preferences/style.min.css?ver=6.8.3 — 200 — 1.3 KiB — 33 ms — h3https://computerhistory.org/wp-includes/css/dist/block-editor/style.min.css?ver=6.8.3/wp-includes/css/dist/block-editor/... https://computerhistory.org/wp-includes/css/dist/block-editor/style.min.css?ver=6.8.3 — 200 — 22.0 KiB — 53 ms — h3https://computerhistory.org/wp-content/plugins/popup-maker/dist/packages/block-library-style.css?ver=dbea705cfafe089d65f1/wp-content/plugins/popup-maker/dis... https://computerhistory.org/wp-content/plugins/popup-maker/dist/packages/block-library-style.css?ver=dbea705cfafe089d65f1 — 200 — 1.9 KiB — 41 ms — 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— 200 — 44.8 KiB — 32 ms — h3https://www.googleadservices.com/pagead/conversion/1065537524/?random=1776889920918&cv=11&fst=1776889920918&bg=ffffff&guid=ON&async=1&en=conversion&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xea&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&label=ZwsICMKv4tgZEPSfi_wD&capi=1&frm=0&tiba=Home%20-%20CHM&bttype=purchase&value=0&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&ec_mode=a&_tu=CA&gcl_ctr=1~0~0~0&category=acrcp_v1_512&em=tv.1&fmt=7www.googleadservices.com/pagead/con... https://www.googleadservices.com/pagead/conversion/1065537524/?random=1776889920918&cv=11&fst=1776889920918&bg=ffffff&guid=ON&async=1&en=conversion&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xea&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&label=ZwsICMKv4tgZEPSfi_wD&capi=1&frm=0&tiba=Home%20-%20CHM&bttype=purchase&value=0&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&ec_mode=a&_tu=CA&gcl_ctr=1~0~0~0&category=acrcp_v1_512&em=tv.1&fmt=7 — 200 — 1.1 KiB — 80 ms — h3https://analytics.google.com/g/collect?v=2&tid=G-NNWSXJ9HYJ&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=1218735072&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=3&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&sid=1776889920&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&_tu=CA&en=page_view&_fv=1&_nsi=1&_ss=1&tfd=1766analytics.google.com/g/collect?v=2&... https://analytics.google.com/g/collect?v=2&tid=G-NNWSXJ9HYJ&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=1218735072&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=3&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&sid=1776889920&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&_tu=CA&en=page_view&_fv=1&_nsi=1&_ss=1&tfd=1766 — 204 — 551 B — 78 ms — h2https://stats.g.doubleclick.net/g/collect?v=2&tid=G-NNWSXJ9HYJ&cid=1880110320.1776889921&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245&rcb=3&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261stats.g.doubleclick.net/g/collect?v... https://stats.g.doubleclick.net/g/collect?v=2&tid=G-NNWSXJ9HYJ&cid=1880110320.1776889921&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245&rcb=3&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261 — 204 — 560 B — 78 ms — h2https://googleads.g.doubleclick.net/pagead/viewthroughconversion/1065537524/?random=1776889920963&cv=11&fst=1776889920963&bg=ffffff&guid=ON&async=1&en=gtag.config&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xec&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&frm=0&tiba=Home%20-%20CHM&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&data=event%3Dgtag.config&rfmt=3&fmt=4googleads.g.doubleclick.net/pagead/... https://googleads.g.doubleclick.net/pagead/viewthroughconversion/1065537524/?random=1776889920963&cv=11&fst=1776889920963&bg=ffffff&guid=ON&async=1&en=gtag.config&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xec&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&frm=0&tiba=Home%20-%20CHM&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&data=event%3Dgtag.config&rfmt=3&fmt=4 — 200 — 2.1 KiB — 72 ms — h3https://www.google.com/rmkt/collect/1065537524/?random=1776889920963&cv=11&fst=1776889920963&fmt=8&bg=ffffff&guid=ON&async=1&en=gtag.config&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xec&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&frm=0&tiba=Home%20-%20CHM&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&data=event%3Dgtag.config&gcp=5www.google.com/rmkt/collect/1065537... https://www.google.com/rmkt/collect/1065537524/?random=1776889920963&cv=11&fst=1776889920963&fmt=8&bg=ffffff&guid=ON&async=1&en=gtag.config&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xec&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&frm=0&tiba=Home%20-%20CHM&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&data=event%3Dgtag.config&gcp=5 — 200 — 20 B — 28 ms — h3https://www.google.com/ccm/collect?rcb=3&frm=0&en=page_view&dl=https%3A%2F%2Fcomputerhistory.org%2F&scrsrc=www.googletagmanager.com&rnd=1224382167.1776889921&dt=Home%20-%20CHM&auid=951147763.1776889921&navt=n&npa=0&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xec&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&apve=1&apvf=f&apvc=0&tids=AW-1065537524&tid=AW-1065537524&tft=1776889920982&tfd=1791www.google.com/ccm/collect?rcb=3&fr... https://www.google.com/ccm/collect?rcb=3&frm=0&en=page_view&dl=https%3A%2F%2Fcomputerhistory.org%2F&scrsrc=www.googletagmanager.com&rnd=1224382167.1776889921&dt=Home%20-%20CHM&auid=951147763.1776889921&navt=n&npa=0&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xec&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~117512543~118463261&apve=1&apvf=f&apvc=0&tids=AW-1065537524&tid=AW-1065537524&tft=1776889920982&tfd=1791 — 200 — 21 B — 36 ms — h3https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=3073724&time=1776889920733&li_adsId=d60bfbdd-d1c0-4eb1-ad73-4a082509ce34&url=https%3A%2F%2Fcomputerhistory.org%2F&cookiesTest=truepx.ads.linkedin.com/collect?v=2&fmt... https://px.ads.linkedin.com/collect?v=2&fmt=js&pid=3073724&time=1776889920733&li_adsId=d60bfbdd-d1c0-4eb1-ad73-4a082509ce34&url=https%3A%2F%2Fcomputerhistory.org%2F&cookiesTest=true — 200 — 452 B — 78 ms — h2https://www.google.com/recaptcha/api2/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4www.google.com/recaptcha/api2/webwo... https://www.google.com/recaptcha/api2/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4 — 200 — 23 B — 442 ms — h3https://api.hubapi.com/hs-script-loader-public/v2/config/pixels-and-events/json?portalId=22740101api.hubapi.com/hs-script-loader-pub... https://api.hubapi.com/hs-script-loader-public/v2/config/pixels-and-events/json?portalId=22740101 — 200 — 1.1 KiB — 129 ms — h2https://googleads.g.doubleclick.net/pagead/viewthroughconversion/1065537524/?random=2117929235&cv=11&fst=1776889920918&bg=ffffff&guid=ON&async=1&en=conversion&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xea&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&label=ZwsICMKv4tgZEPSfi_wD&capi=1&frm=0&tiba=Home%20-%20CHM&value=0&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&ec_mode=a&_tu=CA&gcl_ctr=1~0~0~0&category=acrcp_v1_512&em=tv.1&fmt=8&ct_cookie_present=false&crd=CLTesQII8t-xAgit4bECCKG4sQIIscGxAgiwwbECCLHDsQIIisWxAgjCybECCLTGsQIIk9qxAgjb3LECCIfbsQII08WxAgjrzLECCO3OsQII1c-xAgj02rECCJfUsQIIyduxAgix4bECCLPhsQIIpt2xAgiw3rECCIDbsQJKK3RyaWdnZXI9ZXZlbnQtc291cmNlLCBub3QtbmF2aWdhdGlvbi1zb3VyY2VaAwoBAWIDCgED&cerd=CgEA&eitems=ChAI8OOhzwYQnf3X0YH146MTEh0AvW1FkfOZoKKQlHjEybvm18qvoWc2Y4gGoEABoQ&fsk=ChEI8OOhzwYQy-2I0MH1tu65ARIsADfqr1VMWxqZEgpbiSpr-lncTuO_IjUo4XrYMf5fvyYZJy0uNhyVysNct2EaAgF4&pscrd=IhMI7Net5KaClAMVEOO4CB1vxQqUMgwIA2IICAAQABgAIAAyDAgEYggIABAAGAAgADIMCAdiCAgAEAAYACAAMgwICGIICAAQABgAIAAyDAgJYggIABAAGAAgADIMCApiCAgAEAAYACAAMgwIAmIICAAQABgAIAAyDAgLYggIABAAGAAgADIMCBViCAgAEAAYACAAMgwIH2IICAAQABgAIAAyDAgTYggIABAAGAAgADIMCBJiCAgAEAAYACAAOhxodHRwczovL2NvbXB1dGVyaGlzdG9yeS5vcmcvQldDaEVJOE9PaHp3WVExY2lqeDQtZ2w0YVZBUklzQUk4RUtaMGt0ODVZdUREVmRzQVd4QXdwRExmcG1WYy03dC1zdUdxSXlwYXNIY1lzUVNSSlhiNlRvaGd6DAgJYggIABAAGAAgAAgoogleads.g.doubleclick.net/pagead/... https://googleads.g.doubleclick.net/pagead/viewthroughconversion/1065537524/?random=2117929235&cv=11&fst=1776889920918&bg=ffffff&guid=ON&async=1&en=conversion&gtm=45be64k0v9104257278z8810524245za20gzb810524245zd810524245xea&gcd=13l3l3l3l1l1&dma=0&tag_exp=0~115616986~115938465~115938468~117266400~117384406~118463261&u_w=800&u_h=600&url=https%3A%2F%2Fcomputerhistory.org%2F&rcb=3&label=ZwsICMKv4tgZEPSfi_wD&capi=1&frm=0&tiba=Home%20-%20CHM&value=0&hn=www.googleadservices.com&npa=0&pscdl=noapi&auid=951147763.1776889921&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uamb=0&uam=&uap=macOS&uapv=10.15.7&uaw=0&ec_mode=a&_tu=CA&gcl_ctr=1~0~0~0&category=acrcp_v1_512&em=tv.1&fmt=8&ct_cookie_present=false&crd=CLTesQII8t-xAgit4bECCKG4sQIIscGxAgiwwbECCLHDsQIIisWxAgjCybECCLTGsQIIk9qxAgjb3LECCIfbsQII08WxAgjrzLECCO3OsQII1c-xAgj02rECCJfUsQIIyduxAgix4bECCLPhsQIIpt2xAgiw3rECCIDbsQJKK3RyaWdnZXI9ZXZlbnQtc291cmNlLCBub3QtbmF2aWdhdGlvbi1zb3VyY2VaAwoBAWIDCgED&cerd=CgEA&eitems=ChAI8OOhzwYQnf3X0YH146MTEh0AvW1FkfOZoKKQlHjEybvm18qvoWc2Y4gGoEABoQ&fsk=ChEI8OOhzwYQy-2I0MH1tu65ARIsADfqr1VMWxqZEgpbiSpr-lncTuO_IjUo4XrYMf5fvyYZJy0uNhyVysNct2EaAgF4&pscrd=IhMI7Net5KaClAMVEOO4CB1vxQqUMgwIA2IICAAQABgAIAAyDAgEYggIABAAGAAgADIMCAdiCAgAEAAYACAAMgwICGIICAAQABgAIAAyDAgJYggIABAAGAAgADIMCApiCAgAEAAYACAAMgwIAmIICAAQABgAIAAyDAgLYggIABAAGAAgADIMCBViCAgAEAAYACAAMgwIH2IICAAQABgAIAAyDAgTYggIABAAGAAgADIMCBJiCAgAEAAYACAAOhxodHRwczovL2NvbXB1dGVyaGlzdG9yeS5vcmcvQldDaEVJOE9PaHp3WVExY2lqeDQtZ2w0YVZBUklzQUk4RUtaMGt0ODVZdUREVmRzQVd4QXdwRExmcG1WYy03dC1zdUdxSXlwYXNIY1lzUVNSSlhiNlRvaGd6DAgJYggIABAAGAAgAA 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h2https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 0 B — 61 ms — h2https://px.ads.linkedin.com/wa/?medium=fetch&fmt=gpx.ads.linkedin.com/wa/?medium=fetc... https://px.ads.linkedin.com/wa/?medium=fetch&fmt=g — 204 — 43 B — 164 ms — h3https://analytics.google.com/g/collect?v=2&tid=G-XZEKL3FD6N&gtm=45je64k0v9222189980z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=816558781&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=8&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938465~115938469~117266400~117384406~117512543~118463262&sid=1776889921&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&_tu=CA&en=page_view&_fv=1&_ss=1&tfd=2386analytics.google.com/g/collect?v=2&... https://analytics.google.com/g/collect?v=2&tid=G-XZEKL3FD6N&gtm=45je64k0v9222189980z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=816558781&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=8&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938465~115938469~117266400~117384406~117512543~118463262&sid=1776889921&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&_tu=CA&en=page_view&_fv=1&_ss=1&tfd=2386 — 204 — 48 B — 170 ms — h2https://stats.g.doubleclick.net/g/collect?v=2&tid=G-XZEKL3FD6N&cid=1880110320.1776889921&gtm=45je64k0v9222189980z8810524245za20gzb810524245zd810524245&rcb=8&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115938465~115938469~117266400~117384406~117512543~118463262stats.g.doubleclick.net/g/collect?v... 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https://www.google-analytics.com/g/collect?v=2&tid=G-KKQR0RS2FE&gtm=45je64k0v9126893634z8810524245za20gzb810524245zd810524245&_p=1776889919900&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=1880110320.1776889921&frm=0&pscdl=noapi&rcb=3&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938465~115938469~117266400~117512543&sid=1776889921&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&_tu=CA&en=page_view&_fv=1&_ss=1&tfd=2514 — 204 — 551 B — 148 ms — h2https://analytics.google.com/g/collect?v=2&tid=G-WYBS739XW3&gtm=45je64k0v9126893634z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=2138072742&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=3&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115616986~115938465~115938469~117266400~117512543&sid=1776889921&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&en=page_view&_fv=1&_ss=1&tfd=2539analytics.google.com/g/collect?v=2&... https://analytics.google.com/g/collect?v=2&tid=G-WYBS739XW3&gtm=45je64k0v9126893634z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=2138072742&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=3&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115616986~115938465~115938469~117266400~117512543&sid=1776889921&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&en=page_view&_fv=1&_ss=1&tfd=2539 — 204 — 20 B — 118 ms — h3https://stats.g.doubleclick.net/g/collect?v=2&tid=G-WYBS739XW3&cid=1880110320.1776889921&gtm=45je64k0v9126893634z8810524245za20gzb810524245zd810524245&rcb=3&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115616986~115938465~115938469~117266400~117512543stats.g.doubleclick.net/g/collect?v... https://stats.g.doubleclick.net/g/collect?v=2&tid=G-WYBS739XW3&cid=1880110320.1776889921&gtm=45je64k0v9126893634z8810524245za20gzb810524245zd810524245&rcb=3&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115616986~115938465~115938469~117266400~117512543 — 204 — 20 B — 23 ms — h3https://www.facebook.com/tr/?id=1645398289372783&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889921835&sw=800&sh=600&v=2.9.303&r=stable&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el3&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=GETwww.facebook.com/tr/?id=16453982893... https://www.facebook.com/tr/?id=1645398289372783&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889921835&sw=800&sh=600&v=2.9.303&r=stable&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el3&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=GET — 200 — 19 B — 19 ms — h3https://www.facebook.com/privacy_sandbox/pixel/register/trigger/?id=1645398289372783&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889921835&sw=800&sh=600&v=2.9.303&r=stable&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el3&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=FGETwww.facebook.com/privacy_sandbox/pi... https://www.facebook.com/privacy_sandbox/pixel/register/trigger/?id=1645398289372783&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889921835&sw=800&sh=600&v=2.9.303&r=stable&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el3&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=FGET — 200 — 196 B — 94 ms — h3https://analytics.google.com/g/collect?v=2&tid=G-B7C1ZW7V2R&gtm=45je64k0v9222380350z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=611931075&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=2&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938465~115938469~117266400~117512543&sid=1776889921&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&_tu=CA&en=page_view&_fv=1&_ss=1&tfd=2776analytics.google.com/g/collect?v=2&... https://analytics.google.com/g/collect?v=2&tid=G-B7C1ZW7V2R&gtm=45je64k0v9222380350z8810524245za20gzb810524245zd810524245&_p=1776889919900&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&ecid=611931075&_eu=AAAAAGA&are=1&cid=1880110320.1776889921&ec_mode=a&frm=0&pscdl=noapi&rcb=2&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938465~115938469~117266400~117512543&sid=1776889921&sct=1&seg=0&dl=https%3A%2F%2Fcomputerhistory.org%2F&dt=Home%20-%20CHM&_tu=CA&en=page_view&_fv=1&_ss=1&tfd=2776 — 204 — 20 B — 145 ms — h3https://stats.g.doubleclick.net/g/collect?v=2&tid=G-B7C1ZW7V2R&cid=1880110320.1776889921&gtm=45je64k0v9222380350z8810524245za20gzb810524245zd810524245&rcb=2&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115938465~115938469~117266400~117512543stats.g.doubleclick.net/g/collect?v... https://stats.g.doubleclick.net/g/collect?v=2&tid=G-B7C1ZW7V2R&cid=1880110320.1776889921&gtm=45je64k0v9222380350z8810524245za20gzb810524245zd810524245&rcb=2&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115938465~115938469~117266400~117512543 — 204 — 20 B — 19 ms — 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https://computerhistory.org/cdn-cgi/rum? — 204 — 460 B — 19 ms — h3https://computerhistory.org/wp-content/themes/bsdstarter/favicon.ico/wp-content/themes/bsdstarter/favic... https://computerhistory.org/wp-content/themes/bsdstarter/favicon.ico — 200 — 1.5 KiB — 16 ms — h3https://bam.nr-data.net/1/3711322ece?a=406198101&v=1.313.1&to=MlYDZhdTWxJZAERcVwscIFERW1oPFw9RW1wMXQYfEVdYEVQCRFA%3D&rst=3075&ck=0&s=690a2863636482f9&ref=https://computerhistory.org/&ptid=5ea4628134098996&ap=1862&be=41&fe=2977&dc=1048&at=HhEAEF9JSBw%3D&fsh=1&perf=%7B%22timing%22:%7B%22of%22:1776889919191,%22n%22:0,%22f%22:1,%22dn%22:2,%22dne%22:4,%22c%22:4,%22s%22:4,%22ce%22:17,%22rq%22:17,%22rp%22:41,%22rpe%22:56,%22di%22:1069,%22ds%22:1087,%22de%22:1089,%22dc%22:3000,%22l%22:3000,%22le%22:3018%7D,%22navigation%22:%7B%7D%7D&fp=944&fcp=944bam.nr-data.net/1/3711322ece?a=4061... https://bam.nr-data.net/1/3711322ece?a=406198101&v=1.313.1&to=MlYDZhdTWxJZAERcVwscIFERW1oPFw9RW1wMXQYfEVdYEVQCRFA%3D&rst=3075&ck=0&s=690a2863636482f9&ref=https://computerhistory.org/&ptid=5ea4628134098996&ap=1862&be=41&fe=2977&dc=1048&at=HhEAEF9JSBw%3D&fsh=1&perf=%7B%22timing%22:%7B%22of%22:1776889919191,%22n%22:0,%22f%22:1,%22dn%22:2,%22dne%22:4,%22c%22:4,%22s%22:4,%22ce%22:17,%22rq%22:17,%22rp%22:41,%22rpe%22:56,%22di%22:1069,%22ds%22:1087,%22de%22:1089,%22dc%22:3000,%22l%22:3000,%22le%22:3018%7D,%22navigation%22:%7B%7D%7D&fp=944&fcp=944 — 200 — 680 B — 96 ms — http/1.1https://computerhistory.org/wp-content/themes/bsdstarter/favicon.ico/wp-content/themes/bsdstarter/favic... https://computerhistory.org/wp-content/themes/bsdstarter/favicon.ico — 200 — 0 B — 3 ms — h3https://www.google.com/recaptcha/api2/reload?k=6LemLLkUAAAAAAjc9RBh1WIYYyUREQ1QvL_YGx7wwww.google.com/recaptcha/api2/reloa... https://www.google.com/recaptcha/api2/reload?k=6LemLLkUAAAAAAjc9RBh1WIYYyUREQ1QvL_YGx7w — 200 — 2.1 KiB — 65 ms — h3https://www.facebook.com/tr/?id=2998277347144829&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889922337&sw=800&sh=600&cud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ncud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ud[external_id]=7eec43ad3488288989beec55dcaf8a7a&aud[external_id]=7eec43ad3488288989beec55dcaf8a7a&v=2.9.303&r=stable&a=hubspot&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&cs_est=true&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el2&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=GETwww.facebook.com/tr/?id=29982773471... https://www.facebook.com/tr/?id=2998277347144829&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889922337&sw=800&sh=600&cud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ncud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ud[external_id]=7eec43ad3488288989beec55dcaf8a7a&aud[external_id]=7eec43ad3488288989beec55dcaf8a7a&v=2.9.303&r=stable&a=hubspot&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&cs_est=true&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el2&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=GET — 200 — 16 B — 5 ms — h3https://www.facebook.com/privacy_sandbox/pixel/register/trigger/?id=2998277347144829&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889922337&sw=800&sh=600&cud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ncud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ud[external_id]=7eec43ad3488288989beec55dcaf8a7a&aud[external_id]=7eec43ad3488288989beec55dcaf8a7a&v=2.9.303&r=stable&a=hubspot&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&cs_est=true&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el2&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=FGETwww.facebook.com/privacy_sandbox/pi... https://www.facebook.com/privacy_sandbox/pixel/register/trigger/?id=2998277347144829&ev=PageView&dl=https%3A%2F%2Fcomputerhistory.org%2F&rl=&if=false&ts=1776889922337&sw=800&sh=600&cud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ncud[external_id]=%23***%23%23**%23%23%23%23%23%23%23%23%23%23****%23%23****%23*%23*&ud[external_id]=7eec43ad3488288989beec55dcaf8a7a&aud[external_id]=7eec43ad3488288989beec55dcaf8a7a&v=2.9.303&r=stable&a=hubspot&ec=0&o=12318&fbp=fb.1.1776889921813.583799732547995528&ler=empty&cdl=API_unavailable&pmd[title]=Home%20-%20CHM&pmd[locale]=en_US&plt=1089.1000000238419&cs_est=true&it=1776889920784&coo=false&expv2[0]=pl1&expv2[1]=el2&expv2[2]=bc1&expv2[3]=ra2&expv2[4]=rp2&expv2[5]=ct2&expv2[6]=hf0&rqm=FGET — 200 — 194 B — 44 ms — h3https://bam.nr-data.net/events/1/3711322ece?a=406198101&v=1.313.1&to=MlYDZhdTWxJZAERcVwscIFERW1oPFw9RW1wMXQYfEVdYEVQCRFA%3D&rst=3181&ck=0&s=690a2863636482f9&ref=https://computerhistory.org/&ptid=5ea4628134098996bam.nr-data.net/events/1/3711322ece... https://bam.nr-data.net/events/1/3711322ece?a=406198101&v=1.313.1&to=MlYDZhdTWxJZAERcVwscIFERW1oPFw9RW1wMXQYfEVdYEVQCRFA%3D&rst=3181&ck=0&s=690a2863636482f9&ref=https://computerhistory.org/&ptid=5ea4628134098996 — 200 — 367 B — 78 ms — http/1.1https://www.google.com/recaptcha/api2/clr?k=6LemLLkUAAAAAAjc9RBh1WIYYyUREQ1QvL_YGx7wwww.google.com/recaptcha/api2/clr?k... https://www.google.com/recaptcha/api2/clr?k=6LemLLkUAAAAAAjc9RBh1WIYYyUREQ1QvL_YGx7w — 200 — 16 B — 54 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
88% of JavaScript execution is third-party
First-party Third-party 2107ms · 939KB · €23/mo
www.gstatic.com
Other
Costly
Execution 629ms
Transfer 0 KB
Unused 43%
Monthly Cost €7/mo
Unattributable
Other
Costly
Execution 353ms
Transfer 0 KB
Monthly Cost €4/mo
HubSpot Analytics
Analytics
Costly
Execution 244ms
Transfer 42 KB
Monthly Cost €3/mo
Google Tag Manager
Tag Manager
Optional
Execution 197ms
Transfer 178 KB
Unused 29%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 190ms
Transfer 174 KB
Unused 40%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 157ms
Transfer 175 KB
Unused 40%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 126ms
Transfer 152 KB
Unused 42%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 119ms
Transfer 174 KB
Unused 40%
Monthly Cost €1/mo
Facebook Pixel
Advertising
Optional
Execution 92ms
Transfer 45 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.gstatic.com adds 629ms and costs ~€7/month
  • Unattributable adds 353ms and costs ~€4/month
  • HubSpot Analytics adds 244ms and costs ~€3/month

88% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.gstatic.com takes 629ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 353ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

HubSpot Analytics takes 244ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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