www.renaultgroup.com

The numbers

First visit

0.388 g CO₂e

Return visit

0.0011 g CO₂e

Hosting

unknown

LCP

1.72 s

CLS

0

TTFB

50 ms

At 10,000 views a month this page emits about 34.9 kg CO₂e a year, roughly 143 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 ~0.141 g/visit (1.27 MB)High impact · moderate effort

   13 third-party domains account for 2.54 MB (97% 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.

   • www.renaultgroup.com956 kB
   • www.googletagmanager.com663 kB
   • assets.renaultgroup.com454 kB
   • cdn.cookielaw.org248 kB
   • t.screeb.app136 kB
   • tools.eurolandir.com64 kB

   WSG 3.5: Treat third parties the same as first parties
2. Reduce JavaScript payloadsave ~0.047 g/visit (420 kB)High impact · moderate effort

   22 scripts total 1.68 MB on the wire (5.67 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.

   • 468-bd67b5d17e9540ac.js241 kB
   • gtm.js215 kB
   • _app-cc9e8ab69d073fd1.js180 kB
   • js155 kB
   • gtm.js154 kB

   WSG 3.2: Minify and remove unused codeWSG 3.3: Modularize bandwidth-heavy components
3. 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
4. Upgrade compression beyond gzipsave ~0.019 g/visit (174 kB)Advisory · quick fix

   1.16 MB 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.

   • 468-bd67b5d17e9540ac.js241 kB
   • _app-cc9e8ab69d073fd1.js180 kB
   • ruxitagentjs_ICA15789NPRTUVXfgqrux_1034326071…141 kB
   • otBannerSdk.js140 kB
   • 989ac701ae52cc13.css93 kB

   WSG 4.3: Reduce data transfer with compression
5. Optimize web fontssave ~0.0064 g/visit (57 kB)Advisory · quick fix

   2 font files total 164 kB.

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

   • RenaultGroupAH-Variable.woff288 kB
   • RenaultGroup-Variable.woff276 kB

   WSG 2.11: Use optimized web typography
6. Remove references to broken resourcessave ~<0.001 g/visit (860 B)Advisory · quick fix

   3 requests answered 4xx/5xx on load: transfer and connections spent on nothing, on every single visit.

   Delete or fix the references (stale asset URLs, dead third-party tags). Each one is a request the page provably does not need.

   • tokenHTTP 401 · 692 B
   • respondentHTTP 400 · 523 B
   • rb_bf28073qyuHTTP 400 · 506 B

   WSG 4.4: Setup necessary error pages and redirection links
7. Set a page-weight budgetAdvisory · moderate effort

   At 2.62 MB per view this page rates E. The findings above list where the weight is.

   Agree a transfer budget (e.g. under 975 kB reaches a B), enforce it in CI, and re-scan after each change to hold the line.

   WSG 3.1: Set goals based on performance and energy impact
8. Remove the entry redirectAdvisory · quick fix

   The address that was scanned goes through 1 redirect before the document is served, ending at https://www.renaultgroup.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://renault.com/redirects to https://www.renaultgroup.com/

   WSG 4.4: Setup necessary error pages and redirection links

Where the bytes are

• JavaScript1.68 MB · 22 req
• Images484 kB · 15 req
• Fonts164 kB · 2 req
• CSS134 kB · 2 req
• HTML80 kB · 1 req
• Data (fetch)73 kB · 16 req
• Data (XHR)3.0 kB · 2 req
• Other0 B · 1 req