Before a website goes live, checking service page images is a task that is often overlooked but highly critical. Image quality directly impacts users' first impression of the site's professionalism, as well as page loading speed and SEO performance. This article compiles a service image checklist to help you verify each item before launch, ensuring images are compliant, clear, and aligned with content.
1. Image Compliance Check
Image copyright and usage rights must be confirmed before launch. Using unauthorized images can lead to legal risks, especially on commercial websites.
- Ensure all images have legal authorization, including self-taken photos, purchased stock images, or free images explicitly labeled for commercial use.
- Check if images contain portraits of individuals; if so, confirm that portrait rights authorization is obtained.
- Avoid using images that include other brand trademarks, logos, or distinctive design elements to prevent infringement.
2. Image Technical Parameters Check
Technical parameters of images directly affect loading speed and display quality. Different scenarios require different image sizes, formats, and resolutions.
- Size and Aspect Ratio: Ensure image dimensions match the page layout. Common service image sizes include 1200×800px (wide background), 800×600px (display images), and 300×300px (icons or avatars). Avoid uploading raw images without cropping.
- Format Selection: Use JPEG for photographic images, PNG-8 or SVG for icons or simple graphics, and PNG-24 for images requiring transparency. Avoid using BMP or TIFF formats.
- File Size: Keep each image under 200KB; background images can be up to 500KB. Large images slow down page loading.
- Clarity: Images should not be blurry, stretched, or pixelated. Check clarity on Retina displays and provide 2x images if necessary.
3. Image Content and Style Check
Images must be relevant to the page content and maintain a consistent overall style.
- Verify that each image accurately reflects the corresponding service. For example, a website building service page should use images related to web design or development, not unrelated landscapes.
- Ensure the image's color tone, lighting, and composition align with the brand colors and typography style. If the site has a minimalist style, images should be clean and simple.
- Avoid images with watermarks, dates, text, or outdated elements.
4. Image ALT Tags and SEO Check
ALT tags for each image not only aid SEO but also support accessibility.
- Write descriptive ALT text for every important image, naturally incorporating page-related keywords (e.g., "corporate website building service image") without keyword stuffing.
- For decorative images (e.g., dividers, background textures), set ALT attributes to empty (alt="") or use CSS background images to avoid interfering with screen readers.
- Optimize image file names using English or pinyin, such as "website-service.jpg", to avoid Chinese characters or default numeric names.
5. Loading Performance Check
Many or large images can slow down page loading.
- Use tools like PageSpeed Insights to check image compression and compress further if needed.
- Confirm lazy loading is implemented, especially for images at the bottom of the page.
- Verify that CDN or image servers are configured correctly for fast image loading.
Reminder: Before launch, test page loading in real network environments (e.g., 4G and Wi-Fi) to ensure images display correctly and load at an acceptable speed.
6. Browser and Device Compatibility Check
Images may display differently across browsers and devices.
- Preview in major browsers like Chrome, Firefox, Safari, and Edge to ensure images display correctly and are positioned properly.
- Check image responsiveness on mobile phones and tablets to avoid oversized or too-small images.
- Test for any anomalies when switching between landscape and portrait orientations.
7. Final Pre-Launch Verification
Before going live, go through the checklist item by item, ideally with a colleague cross-checking.
- Ensure all image links are valid, with no broken links or 404 errors.
- Confirm that image ALT tags and title attributes are correct.
- Verify that images serve to illustrate or enhance the page visually, not distract.
- Make sure no placeholder or test images are left unreplaced.
After completing these checks, service images are ready for launch. Regularly review images post-launch, updating them as service content and design styles evolve to keep the site fresh and professional.
