www.nirvanatech.com

The numbers

First visit

0.203 g CO₂e

Return visit

<0.001 g CO₂e

Hosting

unknown

LCP

644 ms

CLS

0.003

TTFB

149 ms

At 10,000 views a month this page emits about 18.3 kg CO₂e a year, roughly 75 km in an average petrol car. The estimate assumes 75% new and 25% returning visitors, a measured cache reload ratio of 0%, and world-average grid intensity. How we calculate this

1. Audit third-party servicessave ~0.063 g/visit (565 kB)High impact · moderate effort

   13 third-party domains account for 1.13 MB (82% of the page).

   Remove services that no longer earn their place; load the rest on interaction (facades for embeds, delayed consent-gated tags). Each third party is also a privacy and performance dependency.

   • cdn.prod.website-files.com632 kB
   • consent.cookiebot.com184 kB
   • www.googletagmanager.com163 kB
   • cdn.jsdelivr.net91 kB
   • d3e54v103j8qbb.cloudfront.net31 kB
   • cdnjs.cloudflare.com26 kB

   WSG 3.5: Treat third parties the same as first parties
2. Reduce JavaScript payloadsave ~0.023 g/visit (210 kB)High impact · moderate effort

   36 scripts total 840 kB on the wire (2.81 MB decoded). Bundles this size usually carry a lot of unused code.

   Split bundles per route, tree-shake dependencies, and audit with a bundle analyzer or coverage profile. A 25% cut is a conservative target for bundles this size.

   • xwGlTR8dhIIfXWRgNepRQLrgOow193 kB
   • gtm.js162 kB
   • cc.js108 kB
   • webflow.schunk.0b8e4514bc08e1aa.js104 kB
   • uc.js38 kB

   WSG 3.2: Minify and remove unused codeWSG 3.3: Modularize bandwidth-heavy components
3. Defer video and audioMedium impact · quick fix

   1 video autoplays.

   Never autoload media: use preload="none" with a poster image, load players on interaction, and stream in an efficient codec (AV1/HEVC).

   • 66b7f3068b19345bbd14c747%2F69cc0c697df6e2ed8f…0 B

   WSG 2.9: Optimize media to reduce resource use
4. Verify your hosting energyMedium impact · moderate effort

   This host has not published renewable energy evidence with the Green Web Foundation, so its energy source is unknown.

   Choose a provider listed in the Green Web Directory, or ask your current provider to publish evidence (and a carbon.txt). This cuts the data-center share of every single page view.

   • carbon.txtNo carbon.txt found at the site root; publishing one is the lightest first step.

   WSG 4.1: Use sustainable hosting
5. Upgrade compression beyond gzipsave ~0.0071 g/visit (64 kB)Advisory · quick fix

   428 kB of text ships gzip-compressed; Brotli or Zstandard would cut roughly another 15-20%, and browsers without them fall back to gzip automatically.

   Serve precompressed Brotli for static text assets (highest level, compressed at build time) and enable Brotli or zstd for dynamic responses; keep gzip only as the fallback.

   • xwGlTR8dhIIfXWRgNepRQLrgOow193 kB
   • cc.js108 kB
   • nirvanatech.com49 kB
   • uc.js38 kB
   • uc.js38 kB

   WSG 4.3: Reduce data transfer with compression
6. Optimize web fontssave ~0.0066 g/visit (59 kB)Advisory · quick fix

   5 font files total 170 kB.

   Subset fonts to used glyphs, prefer one variable font over multiple weights, serve WOFF2 only, and consider system fonts for UI text.

   • 66b7f3ab300d381ca5121e12_medium.woff236 kB
   • 66b7f3ab81ce1bdd2529692b_regular.woff236 kB
   • 66b91d204126ee57e211b529_semibold.woff235 kB
   • 66b7f3abe63e989b8d717166_bold.woff235 kB
   • 69125f49a77dba28f796fed3_InstrumentSerif-Regu…28 kB

   WSG 2.11: Use optimized web typography
7. Remove the entry redirectAdvisory · quick fix

   The address that was scanned goes through 1 redirect before the document is served, ending at https://www.nirvanatech.com/. Every hop is a full round trip on a connection that has not warmed up yet.

   Point links, sitemaps and canonical tags at the final address, and make the host redirect in one hop rather than chaining http to https to www.

   • https://nirvanatech.com/redirects to https://www.nirvanatech.com/

   WSG 4.4: Setup necessary error pages and redirection links
8. Simplify the document structureAdvisory · larger effort

   The page renders 1601 DOM elements, above the 1,500 guideline. Large trees cost memory and CPU on every visitor's device.

   Flatten wrapper markup, render long lists virtually or paginate, and prefer semantic elements over nested divs.

   WSG 3.6: Ensure code follows good semantic practices

Where the bytes are

• JavaScript840 kB · 36 req
• Images247 kB · 14 req
• Fonts170 kB · 5 req
• CSS63 kB · 1 req
• HTML50 kB · 2 req
• Data (XHR)955 B · 1 req
• Other561 B · 1 req
• Data (fetch)490 B · 3 req
• Audio / video0 B · 1 req