# CoreWebVitalsPulse results for twilio.com

> CoreWebVitalsPulse found 7 of 10 signals on twilio.com (score 65/100) in an automated read-only check on 2026-10-27. Not detected: HTML under 300 KB; Images declare width and height (prevents layout shift); HTML arrives in under 0.8 s.

_Automated read-only check of public pages on 2026-10-27; it may be incomplete. twilio.com is not affiliated with Zalwin, and this is not a rating of the company or its products._

**Score:** 65/100

- [ ] **HTML under 300 KB** (medium): 672 KB of HTML.
- [x] **No more than 1 render-blocking script in <head>** (high): 1 blocking scripts in <head>.
- [x] **At most 8 third-party script domains** (medium): 4: rum.hlx.page, consent.trustarc.com, assets.adobedtm.com, fast.wistia.com
- [x] **At most 20 external scripts** (low): 13 external scripts.
- [x] **Web fonts use font-display: swap** (medium): No web fonts found in the HTML.
- [ ] **Images declare width and height (prevents layout shift)** (high): 45 of 45 images lack width/height.
- [x] **Below-the-fold images lazy-load** (medium): 44 of 45 images use loading="lazy".
- [x] **Preconnect or preload hints for critical third parties** (low): 1 preconnect, 0 preload.
- [x] **Mobile viewport meta tag** (medium): Present.
- [ ] **HTML arrives in under 0.8 s** (medium): 3396 ms from our server.

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