opensea.io speed test — 20 Oct 2026
Measured from the wfix.shop server on 20 October 2026 at 14:02 UTC. Grade A (93/100), with the screenshots, the timings and the fixes that matter.
Where the first byte went
- DNS lookup 83 ms 24%
- TCP connect 34 ms 10%
- Server wait 226 ms 66%
Measured on the connection that fetched the HTML. Every other request on the page waits for the end of this bar before it can start.
How this page compares
Every report published here is in this comparison, so it is a reference population of pages tested from one server - not a benchmark of the whole web.
What these numbers mean
- The first byte arrived in 343 ms. That is workable, and the cheapest win left is caching or a warmer connection.
- The page transfers 621.5 KB over 26 request(s). Images files are 66% of it, so resize and recompress the largest images before anything else.
- The HTML itself arrives br-compressed.
- It runs over HTTP/3, so the assets share a connection instead of opening one each.
- 52% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
Fix first: Render-blocking resources - Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.
Read on one shared server, not a visitor's phone: use it to compare pages against each other, not as a promise about every connection. We fix what these tests find.
The headless browser did not capture this page when the test ran, so only the server measurements are shown.
Page weight by type
What the page is made of
Transfer size, compressed as sent. 26 request(s) in total, 621.5 KB across all of them.
Top issues
Render-blocking resources
high impact4 render-blocking resource(s) in the document head (1 script(s), 3 stylesheet(s)). The page cannot paint until each one arrives.
Fix: Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.
Third-party weight
medium impact1 third-party host(s) serve 323.9 KB of this page. Each one is another DNS lookup, TLS handshake and point of failure you do not control.
Fix: Self-host the libraries you can, drop the tags you cannot justify, and preconnect the ones you keep.
HTML document size
medium impactThe document transfers 210.4 KB. A bloated document delays every other request, because nothing else can start until it is parsed.
Fix: Paginate long listings, move repeated markup into a template, and stop inlining large data URIs into the HTML.
Waterfall
Slowest requests
Each bar is one request's own response time, scaled to the slowest. Assets were fetched in parallel, so the bars overlap in real time rather than stacking. first party third party
| Request | Type | Status | Time | Size |
|---|---|---|---|---|
| https://opensea.io/img/learn-center/what-is-nft.png?dpl=dpl_76LH2K4T5U92agDq1rYNAtJivxZR | images | 200 | 950 ms | 25.2 KB |
| https://opensea.io/img/learn-center/how-to-buy-nft.png?dpl=dpl_76LH2K4T5U92agDq1rYNAtJivxZR | images | 200 | 926 ms | 28.4 KB |
| https://opensea.io/img/learn-center/what-is-minting.png?dpl=dpl_76LH2K4T5U92agDq1rYNAtJivxZR | images | 200 | 867 ms | 33.6 KB |
| https://i2c.seadn.io/collection/credits/image_type_logo/0e739b3d7f0523ed180f8ed0845f2f/f20e739b3d7f0523ed180f8ed0845f2f.png?h=80&w=80 3rd party | images | 200 | 850 ms | 635 B |
| https://i2c.seadn.io/collection/collector-crypt/image_type_logo/8a49960d6b1a662d09066e7a102d9e/6d8a49960d6b1a662d09066e7a102d9e.png?h=80&w=80 3rd party | images | 200 | 834 ms | 763 B |
| https://i2c.seadn.io/ethereum/41f13fa2cbb64d908a9add3243345bbc/f092b6ebf5bbfaca498a6135cad5a8/4bf092b6ebf5bbfaca498a6135cad5a8.png?h=80&w=80 3rd party | images | 200 | 830 ms | 908 B |
| https://i2c.seadn.io/ethereum/57a51b4721c5400ea677980c08618b20/a6a4ffdf7e02100f4331dbb8ed64e6/51a6a4ffdf7e02100f4331dbb8ed64e6.png?h=500&w=750 3rd party | images | 200 | 809 ms | 74.2 KB |
| https://i2c.seadn.io/collection/themotifart/image_type_hero_desktop/09e3177256cecd8aeccfb47f7d0aa6/0a09e3177256cecd8aeccfb47f7d0aa6.mp4?frame-time=1&h=500&w=750 3rd party | images | 200 | 809 ms | 44.0 KB |
| https://i2c.seadn.io/collection/themotifart/image_type_hero_mobile/37e2362fcc184192acadb44d74f3d1/9d37e2362fcc184192acadb44d74f3d1.mp4?frame-time=1&h=500&w=750 3rd party | images | 200 | 809 ms | 43.7 KB |
| https://i2c.seadn.io/collection/wandering-america/image_type_hero_desktop/ed39a96edfc5aec5b35212d8982e3c/eaed39a96edfc5aec5b35212d8982e3c.jpeg?h=500&w=750 3rd party | images | 200 | 809 ms | 23.2 KB |
| https://i2c.seadn.io/collection/nocturnal-edition-by-derech/image_type_hero_desktop/48f28ab2efd539bb77f78d24aed701/f348f28ab2efd539bb77f78d24aed701.png?h=500&w=750 3rd party | images | 200 | 809 ms | 23.1 KB |
| https://i2c.seadn.io/collection/nocturnal-edition-by-derech/image_type_hero_mobile/48f28ab2efd539bb77f78d24aed701/f348f28ab2efd539bb77f78d24aed701.png?h=500&w=750 3rd party | images | 200 | 809 ms | 23.1 KB |
| https://i2c.seadn.io/collection/bodoggos/image_type_hero_desktop/167cd4f910c7b566a12d5d967ba22e/9c167cd4f910c7b566a12d5d967ba22e.png?h=500&w=750 3rd party | images | 200 | 809 ms | 17.6 KB |
| https://i2c.seadn.io/collection/hollywoodhills/image_type_hero_desktop/5992a0fb488b1dbd63879259e9bf92/245992a0fb488b1dbd63879259e9bf92.jpeg?h=500&w=750 3rd party | images | 200 | 809 ms | 16.4 KB |
| https://i2c.seadn.io/collection/hollywoodhills/image_type_hero_mobile/0722744a71954337e916d1359d0b88/6c0722744a71954337e916d1359d0b88.jpeg?h=500&w=750 3rd party | images | 200 | 809 ms | 16.3 KB |
| https://i2c.seadn.io/collection/otherdeed-expanded/banner/321a0d888251dfb2608481c7498160/6b321a0d888251dfb2608481c7498160.png?h=500&w=750 3rd party | images | 200 | 809 ms | 11.6 KB |
| https://i2c.seadn.io/collection/lagrange-bend-by-jiwa/image_type_hero_desktop/068409b05343fff402708a1c1e7e13/66068409b05343fff402708a1c1e7e13.png?h=500&w=750 3rd party | images | 200 | 809 ms | 7.6 KB |
| https://i2c.seadn.io/collection/lagrange-bend-by-jiwa/image_type_hero_mobile/068409b05343fff402708a1c1e7e13/66068409b05343fff402708a1c1e7e13.png?h=500&w=750 3rd party | images | 200 | 809 ms | 7.6 KB |
| https://i2c.seadn.io/collection/mutant-ape-yacht-club/banner/07d76505d9dedc6502fbc3ca4e9178/0807d76505d9dedc6502fbc3ca4e9178.png?h=500&w=750 3rd party | images | 200 | 809 ms | 6.4 KB |
| https://i2c.seadn.io/collection/axie-ronin/image/9012bd9916d0febd565e27ddf1d58e/699012bd9916d0febd565e27ddf1d58e.jpeg?h=80&w=80 3rd party | images | 200 | 807 ms | 1.8 KB |
| https://i2c.seadn.io/polygon/90865069ed5a4ef382db799430e09a56/a70379eaf770c85beae83b89c7a632/3ea70379eaf770c85beae83b89c7a632.png?h=80&w=80 3rd party | images | 200 | 807 ms | 1.5 KB |
| https://i2c.seadn.io/collection/0xbabynut-0/image_type_logo/6f3124e2df6145b0c25bbf242e8315/596f3124e2df6145b0c25bbf242e8315.gif?frame-time=1&h=80&w=80 3rd party | images | 200 | 807 ms | 1.0 KB |
| https://i2c.seadn.io/admin-uploads/4d5c28012b20d8c0207bbe70740473/cc4d5c28012b20d8c0207bbe70740473.jpeg?h=80&w=80 3rd party | images | 200 | 807 ms | 1009 B |
| https://i2c.seadn.io/collection/argonauts/image_type_logo/8c1f7d6949c6b5a6e68e661bfd0216/948c1f7d6949c6b5a6e68e661bfd0216.png?h=80&w=80 3rd party | images | 200 | 807 ms | 836 B |
| https://i2c.seadn.io/collection/non-fuddable-tickets/image_type_logo/523bc6014fe58f82ac41bca878a32e/61523bc6014fe58f82ac41bca878a32e.png?h=80&w=80 3rd party | images | 200 | 807 ms | 747 B |
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