[AUDIT PROTOCOL]
METHODOLOGY AND MEASUREMENT PARAMETERS
The bit-aud.it Observatory does not analyze opinions, but physical facts. Every website is an energy infrastructure: its efficiency is the only real measure of its digital sustainability. Below are the criteria used for our scans.
1. TEST ENVIRONMENT
To ensure impartiality, each audit is performed by simulating the following conditions:
- Scan Engine: Google Lighthouse / PageSpeed Insights API.
- Device Emulation: Mobile (Moto G Power) / Desktop.
- Network: Mobile 4G (Throttling: 1.6 Mbps Down / 750 Kbps Up).
- Location: EU-West data center (Milan/Frankfurt).
2. THE GOLDEN METRICS
A. TTFB (TIME TO FIRST BYTE)
- What it is: The time elapsed between the browser's request and the reception of the first byte of data from the server.
- Indication: Infrastructure responsiveness. High TTFB indicates obsolete servers, unoptimized databases, or excessive software overhead (middleware).
- Benchmark: < 200ms (Excellent) | > 1s (Unacceptable).
B. PAYLOAD (TOTAL WEIGHT)
- What it is: The total amount of data (in Megabytes) transferred to display the page.
- Indication: Direct carbon footprint. More MBs transferred mean more energy consumed by the network and devices.
- Benchmark: < 1.5MB (Sustainable) | > 5MB (Inefficient).
C. HTTP REQUESTS
- What it is: The number of separate files the browser must download (images, scripts, fonts).
- Indication: Code complexity and bloat. High request counts penalize users with unstable connections, fueling the Digital Divide.
- Benchmark: < 25 (Optimized) | > 100 (Fragmented).
D. CO2 PER VISIT
- What it is: Estimated grams of carbon dioxide emitted per single session.
- Calculation: Based on the Sustainable Web Design model (Data transferred * Network carbon intensity).
- Benchmark: < 0.1g (Digital Green) | > 1.5g (Digital Waste).
E. COHERENCE SCORE
- What it is: The ratio between an organization's sustainability claims and the actual efficiency of its digital assets.
- Penalty: A site promoting "Environmental Awareness" while weighing 10MB incurs a critical penalty for Technical Greenwashing.
3. BECAUSE BITS DON'T LIE
While ESG reports rely on statements of intent, the bit-aud.it audit is based on execution. Heavy code is an action against the environment. A slow server is an action against social inclusion.
We don't read your press releases. We read your servers.
4. RIGHT TO RECTIFICATION
Site administrators may request a new scan after implementing documented optimization measures. bit-aud.it will update the report within 48 hours following technical verification.
ADVANCED TECHNICAL GLOSSARY
* DOM Content Loaded (DCL): The critical point where the browser has finished parsing the HTML and can begin constructing the page. A core measure of source code cleanliness.
* Asset CleanUp: The process of removing unused CSS and JS files. The presence of redundant scripts is the primary cause of Digital Waste.
* Critical Path CSS: A technique prioritizing the loading of what the user sees immediately. "Heavy" sites ignore this, forcing the browser to download the entire layout before showing a single pixel.
COPYRIGHT (2026) BIT-AUD.IT | INDEPENDENT OBSERVATORY ON DIGITAL SUSTAINABILITY. OBJECTIVE WEB PERFORMANCE AUDITS BASED ON GOOGLE PSI API.
RIGHT TO CRITICISM AND REPORTING GUARANTEED BY ART. 21 OF THE CONSTITUTION. [MENU LINK: LEGAL DISCLAIMER]