Testing website speed...
Performance Grade
F
Load Time
3952ms
Page Size
10485.9KB
Requests
548

Detailed Performance Analysis

GZIP Compression
✓ Yes
Expires Headers
✗ No
DNS Lookups
577.93
DOM Elements
1778

Optimization Recommendations

Core Web Vitals Improvement Needed

Your website's speed grade is <strong>F</strong>. This may negatively impact your rankings on Google. Improving load times to under 2.5 seconds is critical for mobile users.

Reduce Server Response Time (TTFB)

Your server takes more than 2.5 seconds to respond. Consider upgrading your hosting plan, using a CDN (like Cloudflare), or optimizing your database queries.

Optimize Images & Media

Ensure all images are compressed and served in modern formats like WebP. Lazy loading images can also significantly improve initial load times for users on slower connections.

Recent Speed Tests

# Domain Grade Load Time Last Tested
1 donnerberg.net F 3952ms 2026-01-24 18:36
2 youtu.be F 3579ms 2026-01-24 18:32
3 dw.com D 6133ms 2026-01-24 18:31
4 zendesk.com F 3246ms 2026-01-24 18:25
5 tools.pingdom.com C 1659ms 2026-01-24 18:22
6 theguardian.com F 9898ms 2026-01-24 17:18
7 giphy.com F 1450ms 2026-01-24 16:56
8 netlify.app D 4585ms 2026-01-24 16:34
9 isthisup.net A 995ms 2026-01-24 16:23
10 nintendo.com F 3627ms 2026-01-24 16:23
11 welt.de F 9037ms 2026-01-24 15:14
12 kgunic.speedtestcustom.com A 531ms 2026-01-24 15:05
13 archive.org A 1379ms 2026-01-24 14:40
14 nginx.com F 29668ms 2026-01-24 14:28
15 justice.gov F 6581ms 2026-01-24 12:38
16 lichess.org F 1624ms 2026-01-24 11:23
17 ibtimes.com F 3545ms 2026-01-24 10:58
18 pcmag.speedtestcustom.com A 574ms 2026-01-24 10:44
19 arxiv.org A 502ms 2026-01-24 10:44
20 google.com A 473ms 2026-01-24 10:44