Home / Technologies / PDF.js vs web-vitals
PDF.js vs web-vitals: who uses which
web-vitals is on more sites: 25,534 against 13,048 for PDF.js, about 2.0 times as many. Here's how they compare across the websites we've indexed, and where each one does best.
Where each one is used
| Domain | PDF.js | web-vitals |
|---|---|---|
| .com on .com | 4,907 | 6,745 |
| .br in Brazil | 181 | 7,224 |
| .ar in Argentina | 48 | 6,933 |
| .de in Germany | 828 | 593 |
| .org on .org | 875 | 115 |
| .me on .me | 16 | 571 |
| .it in Italy | 446 | 85 |
| .fr in France | 384 | 113 |
3 sites run both at once.
Questions
Which is more popular, PDF.js or web-vitals?
web-vitals is on more sites: 25,534 against 13,048 for PDF.js, about 2.0 times as many, across the sites StackGrep has indexed.
Do sites use PDF.js and web-vitals together?
3 sites load both. That's often a switch in progress, or two teams picking different tools.
Want the whole list?
Sign up to download every site using PDF.js or web-vitals as a spreadsheet and see new ones as they appear. 200 free credits to start. No card needed.