Web Developer Checklist

The ultimate checklist for all serious web developers building modern websites. - Sourced from http://webdevchecklist.com/

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27th July 2016 in technology & computing

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Item

Item

Category

Checked

More Info

More Info 2

More Info 3

Google

Category
Best Practices

Spelling and grammar

Check website in all browsers

Decide on www-subdomain

Category
Mobile

MobileOK score of 75+

Use 'viewport' meta-tag

Use correct input types

Manual check using emulators

Test using real devices

Category
Analytics

Uptime Monitoring

Traffic Analysis

Category
Performance

Google Page Speed Score of 90+

Yahoo Yslow score of 85+

Optimize HTTP headers

Optimize Images

Category
Usability

HTML5 compatibility check

Custom 404 page

Favicon

Use friendly URLs

Print-friendly CSS

Add search feature

Environment Integration

Category
Semantics

Add meaning with structured data

Check the semantics

Category
SEO

SenSEO score of 85+

Google Rich Snippets

robots.txt

XML sitemap

Category
Code Quality

HTML validation

CSS validation

Run CSS Lint

Run JSLint/JSHint

World ready

Automated testing

Category
Accessibility

Accessibility validation

Color contrast

WAI-ARIA Landmarks

Category
Security

Follow best practises

Cross-site scripting

Cross-site request forgery

Secure connection (SSL)