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https://sert-nfpmk.ru

Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
2
REVIEW
7
PASS
15
INFO
3

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

Mobile Desktop
65
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
77
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
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.

3.73 s

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

5.85 s

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

180 ms

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

0.000

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

5.28 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.

5.93 s

Page Load Progression

385 ms
770 ms
1.2 s
1.5 s
1.9 s
2.3 s
2.7 s
3.1 s
Checks
27
15 PASS 7 REVIEW 2 FIX
D
Third-Party Impact
Action
81% third-party, 0 ms blocking
FIX
81% third-party, 0 ms blocking
Warning::
Third-party code accounts for 81% of page weight (453.7 KiB of 559.4 KiB)
Info::
Third-party blocking time is low (0 ms)
19%
81%
First-party Third-party
D
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Image Optimization
Action
21 images, 0 KB saveable
REVIEW
21 images, 0 KB saveable
Warning::
https://static.tildacdn.com/tild3561-3233-4465-b03... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://thb.tildacdn.com/tild3331-3665-4334-b334-3... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
21 images 235 KB
0 oversized -0 KB
19 legacy format
2 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

C
JS Execution Cost
Action
1374ms total JS execution
REVIEW
1374ms total JS execution
Warning::
https://static.tildacdn.com/js/tilda-scripts-3.0.m...: 550ms CPU time
Warning::
https://sert-nfpmk.ru/: 536ms CPU time
Warning::
Unattributable: 289ms CPU time
Info::
Third-party scripts: 550ms (40% of total)

Main Thread Breakdown

Style & Layout 36% Other 31% Script Evaluation 17% Rendering 8% Parse HTML & CSS 4% Script Parsing & Compilation 4%
ScriptTotalScriptingParse/CompileParty
https://static.tildacdn.com/js/tilda-scripts-3.0.min.js550ms105ms3ms3rd
https://sert-nfpmk.ru/536ms60ms20ms1st
Unattributable289ms6ms0ms1st
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
B
Document Compression
Document response uses gzip; brotli would be ~20% smaller
REVIEW
Document response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
559 KB transferred, 64 requests
PASS
559 KB transferred, 64 requests
Info::
Page weighs 1.2 MB (559 KB transferred)
Info::
64 HTTP requests
Info::
Estimated 0.11 g CO2 per page load
559 KB / 2.4 MB budget
559 KB transferred
64 requests
0.11 g CO2 per page load
Images 235.4 KiB 42%
JavaScript 144.1 KiB 26%
HTML 105.7 KiB 19%
Fonts 44.8 KiB 8%
CSS 26.9 KiB 5%
Other 2.0 KiB 0%
Other 411 B 0%
0 2.4 MB 4.9 MB
Under budget
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
4 fonts (45 KB)
PASS
4 fonts (45 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

45 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 3.7 s LCP 5.9 shttps://fonts.gstatic.com/s/ptserif/v19/EJRSQgYoZZY2vCFuvAnt66qSVyvVp8NA.woff2EJRSQgYoZZY2vCFuvAnt66q... https://fonts.gstatic.com/s/ptserif/v19/EJRSQgYoZZY2vCFuvAnt66qSVyvVp8NA.woff2 — 13.2 KiB — 31 ms — font-display: swaphttps://fonts.gstatic.com/s/ptserif/v19/EJRVQgYoZZY2vCFuvAFWzr-_dSb_.woff2EJRVQgYoZZY2vCFuvAFWzr-... https://fonts.gstatic.com/s/ptserif/v19/EJRVQgYoZZY2vCFuvAFWzr-_dSb_.woff2 — 13.1 KiB — 39 ms — font-display: swaphttps://fonts.gstatic.com/s/ptserif/v19/EJRSQgYoZZY2vCFuvAnt66qWVyvVp8NAyIw.woff2EJRSQgYoZZY2vCFuvAnt66q... https://fonts.gstatic.com/s/ptserif/v19/EJRSQgYoZZY2vCFuvAnt66qWVyvVp8NAyIw.woff2 — 9.3 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/ptserif/v19/EJRVQgYoZZY2vCFuvAFSzr-_dSb_nco.woff2EJRVQgYoZZY2vCFuvAFSzr-... https://fonts.gstatic.com/s/ptserif/v19/EJRVQgYoZZY2vCFuvAFSzr-_dSb_nco.woff2 — 9.2 KiB — 35 ms — font-display: swap
EJRSQgYoZZY2vCFuvAnt66q... woff2 swap
Size 13 KB
Load time 31 ms
Start 552 ms
Risk FOUT — text flashes from fallback to web font
EJRVQgYoZZY2vCFuvAFWzr-... woff2 swap
Size 13 KB
Load time 39 ms
Start 552 ms
Risk FOUT — text flashes from fallback to web font
EJRSQgYoZZY2vCFuvAnt66q... woff2 swap
Size 9 KB
Load time 28 ms
Start 552 ms
Risk FOUT — text flashes from fallback to web font
EJRVQgYoZZY2vCFuvAFSzr-... woff2 swap
Size 9 KB
Load time 35 ms
Start 553 ms
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+
JS Bundles
19 scripts, 48 KB unused
PASS
19 scripts, 48 KB unused
Warning::
https://static.tildacdn.com/js/tilda-forms-1.0.min...: 28 KB unused (88%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.tildacdn.com/js/tilda-animation-2.0...: 21 KB unused (88%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 48 KB
48 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://static.tildacdn.com/js/tilda-forms-1.0.min.js32 KB28 KB (88%)✓3rd
https://static.tildacdn.com/js/tilda-animation-2.0.min.js23 KB21 KB (88%)✓3rd
https://static.tildacdn.com/js/tilda-zero-1.1.min.js14 KB—✓3rd
https://static.tildacdn.com/js/tilda-cards-1.0.min.js1 KB—✓3rd
https://static.tildacdn.com/js/tilda-lazyload-1.0.min.js8 KB—✓3rd
https://static.tildacdn.com/js/tilda-scripts-3.0.min.js8 KB—✓3rd
https://static.tildacdn.com/js/tilda-menu-1.0.min.js4 KB—✓3rd
https://static.tildacdn.com/js/tilda-cover-1.0.min.js5 KB—✓3rd
https://neo.tildacdn.com/js/tilda-fallback-1.0.min.js1 KB—✓3rd
https://static.tildacdn.com/js/tilda-paint-icons.min.js16 KB—✓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

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
3 hints, 0 missing preconnects
PASS
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)

Current Resource Hints

preconnect
1
preload
—
dns-prefetch
2
prefetch
—

3 resource hints configured

A
Asset Compression
1 of 1 asset host still on gzip
PASS
1 of 1 asset host still on gzip
Info::
static.tildacdn.com serves assets with gzip; brotli would be ~20% smaller (assets: 36)
Every current browser accepts brotli. On a CDN this is a per-pull-zone toggle (Cloudflare, Fastly, CloudFront, CDN77, Bunny all expose it); on an origin it needs the brotli module (nginx-brotli, Apache mod_brotli). The saving lands on the assets this host serves, not on the HTML document -- the document's own encoding is reported separately.
Got: static.tildacdn.com (application/javascript)
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Warning::
Compressed response missing `Vary` header
The page is served with `Content-Encoding: gzip` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.
Info::
Both `ETag` and `Last-Modified` present -- efficient revalidation supported
The page returns both `ETag` (content hash) and `Last-Modified` (timestamp) headers. Browsers can issue conditional GETs with `If-None-Match` or `If-Modified-Since`; the server returns 304 Not Modified for unchanged content, saving bandwidth. ETag is the more reliable of the two (timestamps fail in DST transitions and clock skew).
A
Page Weight Inventory
64 resources · 559 KB · 48 KB savings available
PASS
64 resources · 559 KB · 48 KB savings available
Info::
Within 1MB page-weight target
Got: 559 KB
Warning::
63 third-party resources (81% of weight)
64 resources · 559.4 KiB · 63 third-party Within 1MB page-weight target
Image 42% · 237.3 KiB
JavaScript 26% · 144.1 KiB
Document 19% · 105.9 KiB
Font 8% · 44.8 KiB
CSS 5% · 26.9 KiB
Other 0% · 411 B

~48.2 KiB of savings available

Remove unused JavaScript: 48.2 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
3 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
A
CSS Performance Depth
1 CSS depth issue(s) detected
PASS
1 CSS depth issue(s) detected
Warning::
8 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
Network Waterfall
64 requests over 3163ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 3.7 s LCP 5.9 shttps://sert-nfpmk.ru// https://sert-nfpmk.ru/ — 200 — 105.7 KiB — 207 ms — h2https://neo.tildacdn.com/js/tilda-fallback-1.0.min.jsneo.tildacdn.com/js/tilda-fallback-... https://neo.tildacdn.com/js/tilda-fallback-1.0.min.js — 200 — 1.1 KiB — 156 ms — h2https://static.tildacdn.com/css/tilda-grid-3.0.min.cssstatic.tildacdn.com/css/tilda-grid-... https://static.tildacdn.com/css/tilda-grid-3.0.min.css — 200 — 1.5 KiB — 125 ms — h2https://static.tildacdn.com/ws/project5639539/tilda-blocks-page89428896.min.css?t=1785417590static.tildacdn.com/ws/project56395... https://static.tildacdn.com/ws/project5639539/tilda-blocks-page89428896.min.css?t=1785417590 — 200 — 10.6 KiB — 223 ms — h2https://fonts.googleapis.com/css2?family=PT+Serif:wght@400;700&subset=latin,cyrillicfonts.googleapis.com/css2?family=PT... https://fonts.googleapis.com/css2?family=PT+Serif:wght@400;700&subset=latin,cyrillic — 200 — 1005 B — 95 ms — h2https://static.tildacdn.com/css/tilda-animation-2.0.min.cssstatic.tildacdn.com/css/tilda-anima... https://static.tildacdn.com/css/tilda-animation-2.0.min.css — 200 — 1.3 KiB — 124 ms — h2https://static.tildacdn.com/css/tilda-cover-1.0.min.cssstatic.tildacdn.com/css/tilda-cover... https://static.tildacdn.com/css/tilda-cover-1.0.min.css — 200 — 950 B — 125 ms — h2https://static.tildacdn.com/css/tilda-forms-1.0.min.cssstatic.tildacdn.com/css/tilda-forms... https://static.tildacdn.com/css/tilda-forms-1.0.min.css — 200 — 9.9 KiB — 121 ms — h2https://static.tildacdn.com/css/tilda-cards-1.0.min.cssstatic.tildacdn.com/css/tilda-cards... https://static.tildacdn.com/css/tilda-cards-1.0.min.css — 200 — 431 B — 122 ms — h2https://thb.tildacdn.com/tild3331-3665-4334-b334-326166316464/-/resize/20x/____.pngthb.tildacdn.com/tild3331-3665-4334... https://thb.tildacdn.com/tild3331-3665-4334-b334-326166316464/-/resize/20x/____.png — 200 — 1.0 KiB — 140 ms — h2https://static.tildacdn.com/tild3561-3233-4465-b034-353964313035/nfpmk_logo_color.pngstatic.tildacdn.com/tild3561-3233-4... https://static.tildacdn.com/tild3561-3233-4465-b034-353964313035/nfpmk_logo_color.png — 200 — 27.3 KiB — 123 ms — h2https://static.tildacdn.com/css/tilda-date-picker-1.0.min.cssstatic.tildacdn.com/css/tilda-date-... https://static.tildacdn.com/css/tilda-date-picker-1.0.min.css — 200 — 1.2 KiB — 35 ms — h2https://static.tildacdn.com/js/tilda-date-picker-1.0.min.jsstatic.tildacdn.com/js/tilda-date-p... https://static.tildacdn.com/js/tilda-date-picker-1.0.min.js — 200 — 5.3 KiB — 31 ms — h2https://static.tildacdn.com/js/tilda-scripts-3.0.min.jsstatic.tildacdn.com/js/tilda-script... https://static.tildacdn.com/js/tilda-scripts-3.0.min.js — 200 — 7.6 KiB — 32 ms — h2https://static.tildacdn.com/ws/project5639539/tilda-blocks-page89428896.min.js?t=1785417590static.tildacdn.com/ws/project56395... https://static.tildacdn.com/ws/project5639539/tilda-blocks-page89428896.min.js?t=1785417590 — 200 — 3.9 KiB — 85 ms — h2https://static.tildacdn.com/js/tilda-lazyload-1.0.min.jsstatic.tildacdn.com/js/tilda-lazylo... https://static.tildacdn.com/js/tilda-lazyload-1.0.min.js — 200 — 7.9 KiB — 39 ms — h2https://static.tildacdn.com/js/tilda-animation-2.0.min.jsstatic.tildacdn.com/js/tilda-animat... https://static.tildacdn.com/js/tilda-animation-2.0.min.js — 200 — 23.4 KiB — 46 ms — h2https://static.tildacdn.com/js/tilda-menu-1.0.min.jsstatic.tildacdn.com/js/tilda-menu-1... https://static.tildacdn.com/js/tilda-menu-1.0.min.js — 200 — 3.9 KiB — 42 ms — h2https://static.tildacdn.com/js/tilda-cover-1.0.min.jsstatic.tildacdn.com/js/tilda-cover-... https://static.tildacdn.com/js/tilda-cover-1.0.min.js — 200 — 5.2 KiB — 44 ms — h2https://static.tildacdn.com/js/tilda-zero-1.1.min.jsstatic.tildacdn.com/js/tilda-zero-1... https://static.tildacdn.com/js/tilda-zero-1.1.min.js — 200 — 14.1 KiB — 78 ms — h2https://static.tildacdn.com/js/tilda-paint-icons.min.jsstatic.tildacdn.com/js/tilda-paint-... https://static.tildacdn.com/js/tilda-paint-icons.min.js — 200 — 15.7 KiB — 57 ms — h2https://static.tildacdn.com/js/tilda-forms-1.0.min.jsstatic.tildacdn.com/js/tilda-forms-... https://static.tildacdn.com/js/tilda-forms-1.0.min.js — 200 — 32.4 KiB — 81 ms — h2https://static.tildacdn.com/js/tilda-cards-1.0.min.jsstatic.tildacdn.com/js/tilda-cards-... https://static.tildacdn.com/js/tilda-cards-1.0.min.js — 200 — 873 B — 76 ms — h2https://static.tildacdn.com/js/tilda-video-1.0.min.jsstatic.tildacdn.com/js/tilda-video-... https://static.tildacdn.com/js/tilda-video-1.0.min.js — 200 — 4.0 KiB — 76 ms — h2https://static.tildacdn.com/js/tilda-video-processor-1.0.min.jsstatic.tildacdn.com/js/tilda-video-... https://static.tildacdn.com/js/tilda-video-processor-1.0.min.js — 200 — 4.1 KiB — 53 ms — h2https://static.tildacdn.com/js/tilda-zero-scale-1.0.min.jsstatic.tildacdn.com/js/tilda-zero-s... 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
40% of JavaScript execution is third-party
First-party Third-party 550ms · 8KB · ₽163/mo
static.tildacdn.com
Other
Costly
Execution 550ms
Transfer 8 KB
Monthly Cost ₽163/mo

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

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Image Optimization
3 images, 0 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

3

Total Size

0 KB

Oversized

1

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