Landing-page target summary
Suggested starting point: 150-280 KB for many landing-page visuals, with extra attention on above-the-fold hero images
How to size images for a landing page
- 1
Define whether the asset is the hero, a feature-section graphic, or a supporting campaign visual.
- 2
Resize it to realistic responsive dimensions for the section where it will appear.
- 3
Compress toward a premium-looking but performance-conscious target, especially for above-the-fold use.
- 4
Preview the page on mobile and desktop to confirm that load feel and visual impact both hold up.
Landing-page image recommendations
- Hero banners often need a wide aspect ratio, but they still benefit from realistic export widths instead of giant desktop-only masters.
- Aim for the lightest file that still feels premium above the fold, because landing-page visuals directly affect first impression and speed.
- Use WebP or JPEG for photographic campaign art, and reserve PNG for transparency-heavy overlays or sharp branded graphics that need it.
- Compress after choosing the real device-responsive dimensions you want the campaign section to serve.
Landing pages differ from blog and product pages because the first visual often carries messaging, brand perception, and conversion pressure at the same time.
Dimensions
- Desktop hero banners often live around 1600-2000 px wide, but responsive crops may let you export smaller variants than expected.
- Mobile hero images should be evaluated separately so the page does not ship one oversized desktop-first asset to every device.
- Section graphics beneath the fold can usually be lighter than the opening hero if they play a supporting role.
- Campaign visuals with text overlays need enough resolution for sharp type, but not at the cost of giant unused margins.
Key rules
- Compress when the hero dimensions are already matched to the layout but the exported file is still too heavy.
- Resize when the banner asset is wider or taller than the responsive design ever displays.
- Prioritize the first screen first, because landing-page performance pain is often concentrated in the hero region.
- Check desktop and mobile separately when a campaign depends on different crops or focal points.
Common mistakes
- Shipping one huge desktop hero image to mobile visitors without a resize strategy.
- Treating every landing-page visual like a print asset and preserving excessive source dimensions.
- Adding text into a hero image without checking whether compression harms readability.
- Optimizing only the hero while leaving secondary conversion sections full of heavy supporting graphics.
Frequently asked questions
What is a good file size for a landing-page hero image?
Many landing-page heroes can be kept somewhere around 150 KB to 280 KB, but the right target depends on detail, crop, overlay text, and how much of the first screen the image occupies.
Should landing-page images be resized for mobile separately?
Usually yes. Responsive landing pages often benefit from smaller mobile crops or exports so visitors do not download a large desktop-first hero unnecessarily.
When should I compress a landing-page image instead of resizing it?
Compress when the dimensions already match the section design and you just need to remove excess weight. Resize first when the asset is significantly larger than the layout ever renders.
How is landing-page guidance different from general website guidance?
Landing pages focus more heavily on above-the-fold impact, conversion flow, and campaign hero behavior. General website guidance is broader, while landing-page advice is stricter about the first visual's cost versus payoff.