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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | imageseoforai.com | youcompress.com | Switch / compare |
|---|---|---|---|
| Image compression | 93/100 2048 × 2048 · PNG | 89/100 2048 × 2048 · PNG | Active task |
| PDF compression | Not tested in topic | 78/100 PDF · Output attached | Compare in task topic → |
| Video compression | Not tested in topic | 95/100 MP4 · Output attached | Compare in task topic → |
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Browse this task →| Criterion | Image SEO for AI Image compression 93/100 Seven-aspect task score Image SEO for AI excelled in the 2026-11-01 benchmark: fully guest-accessible and purely client-side via browser Canvas, reducing a 4.14 MB PNG by 54.7% to 1.87 MB with PSNR of 37.41 dB and SSIM of 0.9975, delivering full-resolution watermark-free PNG with zero server upload overhead. Tested export 2048 × 2048 · PNG Historical test · 2026-11-01 | YouCompress Image compression 89/100 Seven-aspect task score 100% free with no login, compressing the 4.14 MB anchor by 65.65% to 1.39 MB in 4.27s with PSNR 34.97 dB and full-res transparent PNG export. Tested export 2048 × 2048 · PNG Historical test · 2026-11-04 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | Image SEO for AI 100% free client-side image compression and SEO optimization · 2026-11-01 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-11-01 ↗ Free Free Free Completely free without registration, up to 100 images per batch (JPEG/PNG/WebP, up to 40 MB each) Batch compression, C2PA/AI tag and GPS removal, SEO renaming, alt text, IPTC/XMP keyword and copyright embedding；Runs purely in client browser; very large batches may depend on local machine memory；Permanently free, no renewal；Perpetual access 1 plan / billing-period records, all listed; — means that period is not recorded. All features are 100% free with no registration, no watermark, up to 100 images per batch (40MB each), running purely client-side. Cancellation, sources & verification recordCancellation and refund terms unverified Image SEO for AI Official Homepage ↗ · 2026-11-01 Capture 1 ↗ | YouCompress 100% free web utility structure · 2026-10-30 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-30 ↗ Free Free Free 100% free without login, unlimited daily compressions, no watermarks Automated compression for videos, PDFs, MP3s, and PNG/JPG/GIF images 1 plan / billing-period records, all listed; — means that period is not recorded. All file compression utilities are 100% free without registration or usage quotas. Cancellation, sources & verification recordCancellation and refund terms unverified YouCompress Official Homepage ↗ · 2026-10-30 Capture 1 ↗ |
| Free & trial allowance on the test date | Completely free, 40MB per file, up to 100 images per batch | Not verified |
| Cancellation & refunds | Not verified | Not verified |
| Disclosure of costs & limits | Interface transparently displays parameter settings and guidelines | Not verified |
| Task quality | ||
| Measured fixture results | File reduction: 54.72% · Output size: 1873.8 KB | File reduction: 65.65% · Output size: 1421.6 KB |
| Fixture findings | Sample testing confirms: under default Balanced mode, it preserves 2048x2048 resolution and PNG format with smooth micro-edges, achieving 54.7% compression and a 91.2 overall benchmark rating. | Substantial 65.7% size reduction while fully preserving 2048px resolution and transparency without visual artifacts; fast and straightforward. |
| Original historical observation | Image SEO for AI compresses images and strips metadata entirely inside browser Canvas; under default Balanced mode it reduces the 4.14 MB anchor by 54.7% to 1.87 MB with SSIM of 0.9975, maintaining great visual fidelity. | Uploading the standard 4.14 MB PNG anchor (anchor_compress_v1) to YouCompress (https://www.youcompress.com/images/) completed in 4.27s on cloud servers, displaying Completed: Download (4.04MB => 1.39MB, -65.65%), exporting a 1,421.6 KB PNG preserving 2048x2048 resolution, transparency, PSNR 34.97 dB, and SSIM 0.9956. |
| Suitable uses · historical assessment | E-commerce sellers and webmasters needing fast, free large-image compression preserving transparency and 2048px resolution | Not verified |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | 2048 × 2048 · PNG · No watermark in test | 2048 × 2048 · PNG · Check watermark record |
| Historical specification note · not an official maximum | 2048×2048 (no-login full-resolution watermark-free direct PNG export) | 2048x2048 (Full-resolution unwatermarked PNG deliverable) |
| Watermark observation | No watermark | Not verified |
| Batch & API | Supports up to 100 images per batch, up to 40MB each | Not verified |
| Recorded free-tier dimensions | 2048 × 2048 | 2048 × 2048 |
| Attached file dimensions | 2048 × 2048 · PNG | 2048 × 2048 · PNG |
| Speed & reliability | ||
| Timing observation | Recorded local processing time: 6.1s · End-to-end reference: 6.1s | Network-observed server wait: 4.27s · End-to-end reference: 7.61s |
| Date & fixture | 2026-11-01 · anchor_compress_v1 · US-West (California, AS2914) | 2026-11-04 · anchor_compress_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | Not verified |
| Sign-in methods | All features available directly without registration or login | Direct anonymous usage without login or registration |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Image SEO for AI (Christophe / Maison Lune) | YouCompress |
| Recorded origin | Not verified | Not verified |
| Domain history record | Not verified | Not verified |
| Background & reputation assessment | Not verified | Not verified |
| External reputation record | Not verified | Not verified |
| Engineering & privacy | ||
| Processing location | On-device processing | Uploaded for cloud processing |
| Third-party tracking record | No third-party services listed in this record; this is not proof that none exist. | Google AdSense · Google Analytics · Fathom Analytics |
| Engineering & privacy assessment | Not verified | Not verified |
| Retention statement | This flow runs locally; post-close deletion not independently verified | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | ||
| Interaction restraint | ||
| Background & reputation | ||
| Engineering & privacy | ||
| Task quality | 58 / 65 Size Reduction: -54.72% (4137.9 KB → 1873.8 KB, 2.21× ratio) · PSNR: 37.41 dB · SSIM: 0.9975 | 55 / 65 Size Reduction: -65.65% (4137.9 KB → 1421.6 KB, 2.91× ratio) · PSNR: 34.97 dB · SSIM: 0.9956 |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Export spec: 2048×2048 (no-login full-resolution watermark-free direct PNG export) | 20 / 20 Clean unwatermarked export (8/8); Export spec: 2048x2048 (Full-resolution unwatermarked PNG deliverable) |
| Processing speed | 14 / 15 Network-observed server wait: 6.1s (API mode: client_side; network upload 0s / end-to-end 6.1s shown for reference only, never penalized) | 13.5 / 15 Network-observed server wait: 4.27s (API mode: sync_json_verified; network upload 3.34s / end-to-end 7.61s shown for reference only, never penalized) |
