So, your web development agency just wrapped up a new site. The client is thrilled. The layout’s crisp. The buttons click like butter. But let’s pause for a second. What now? You don’t build a rocket just to let it sit on the launchpad. A website launch isn’t the end of the job. It’s the beginning of the real test. Because that beautifully designed site lives in the real world now. With real users. Real devices. Real problems. 

This is where metrics come in. 

Post-launch tracking is what separates a polished product from a functional, evolving one. Whether your team handles enterprise clients or lean startups, every web development agency needs a solid grip on data once the site goes live. That data tells you what’s working, what’s tanking, and what needs fine-tuning before small bugs turn into big issues. 

Let’s break down the top metrics that matter the most!   

Website Traffic: The Obvious Starting Line 

Let’s not skip the basics. Post-launch, traffic tells you if anyone’s even finding your website. But don't just stop at total visits. Dig deeper: 

• Unique visitors: Are new people showing up, or just your team checking the homepage 14 times a day? 
• Traffic sources: Organic search, direct visits, referrals, paid—where are people coming from? 
• Device types: Is mobile traffic high? If yes, your mobile UX better be flawless. 
• Geography: Useful for tailoring content and site language. 

Your web development agency should set up proper Google Analytics and/or GA4 configuration during the final stage of development. 

Bounce Rate And Exit Rate: Are You Holding Attention? 

Ever walk into a store and immediately walk out? That’s the bounce rate in digital form. Why does it matter? If users bounce right after landing, something’s off…design, load speed, content, maybe even intent mismatch. 

• Bounce Rate: Visitors who leave after seeing just one page. 
• Exit Rate: The percentage of users who leave a particular page, regardless of how many pages they viewed before. 

A high bounce rate doesn’t always mean failure. However, a web development agency should track it to uncover what pages may need better engagement strategies. 

Page Load Speed: The Metric That Affects Everything

How fast your site loads isn’t just a UX metric. It impacts SEO, bounce rates, and conversions. Tools like Google PageSpeed Insights or GTmetrix are your best friends here. A good web development agency will routinely monitor: 

• Time to First Byte (TTFB) 
• Largest Contentful Paint (LCP) 
• Total Blocking Time (TBT) 
• Cumulative Layout Shift (CLS) 

These Core Web Vitals are a must-track if you care about performance and search rankings. If your site takes more than 3 seconds to load? Start waving goodbye to users. 

Mobile Responsiveness: Looks Good Everywhere?

A huge chunk of global web traffic comes from mobile devices. That means: 

• Are clickable elements spaced well for thumbs? 
• Are images and fonts scaling right? 
• Is the layout breaking on smaller screens? 

A responsible web development agency doesn’t just design for mobile. They test, iterate, and track how the site performs across devices. You can use Google’s Mobile-Friendly Test, but real-world testing (especially on various screen sizes) is gold. 

Conversion Rate: The Real Measure Of Success 

Traffic is nice. But conversions? That’s where the magic is. Post-launch, a web development agency should be tracking: 

• Form submissions 
• Product purchases 
• Newsletter signups 
• Call-to-action clicks 

And not just the quantity, but also the conversion rate, how many users convert out of the total who visit. This helps pinpoint whether the site structure, design, or even button placements are nudging people to act. 

Website Uptime: Your 24/7 Status Report 

No one likes surprises, especially the kind where your site has been down for hours and you had no clue. Reliable uptime monitoring tools include: 

• UptimeRobot 
• Pingdom 
• StatusCake 

A professional web development agency will set up automated alerts to notify stakeholders when the site is down, whether it's 3 PM or 3 AM. Because no traffic or conversion can happen if your site’s taking a nap. 

User Behavior Via Heatmaps And Session Recordings 

Want to see how users actually behave on your site? Tools like Hotjar or Clarity show heatmaps, scroll depth, and even session recordings. Your web development agency can use this to answer questions like: 

• Are users clicking non-clickable elements? 
• Is the scroll depth poor on landing pages? 
• Are call-to-actions getting noticed? 

Broken Links & 404 Monitoring: The Small Bugs That Kill UX

Dead-end pages can silently kill your SEO and credibility. A good site shouldn’t feel like wandering through a maze. Especially not one with dead ends. Make sure your web development agency sets up: 

• Regular crawls with Screaming Frog or Ahrefs 
• 404-page alerts 
• Redirect tracking  

Site Search Tracking: What Are Users Looking For? 

If your website has an internal search bar, this metric is pure gold.

Track: 

• Search terms 
• Zero-result queries 
• CTR on search results 

It tells you two things: What content people are hunting for, and what you’re missing. Smart website development services use this to expand content and enhance site architecture. 

Error Tracking And Console Warnings 

Even post-launch, bugs will pop up. That’s life. But your web development agency should be tracking:

• JavaScript errors 
• 404s 
• Console warnings 
• CSS or image load failures 

You can use tools like Sentry or LogRocket. And combine it with browser console logs for full visibility. This is especially critical if you’ve used dynamic frameworks like React, Vue, or Angular. 

Security Monitoring: No Such Thing As ‘Too Safe’

Hackers don’t wait for version 2.0. Security starts on day one. A proactive web development agency should set up systems to catch security issues before users (or Google) do. Regular security scans and auto-alerts are your first line of defense. 

Track: 

• Brute-force attempts 
• Login anomalies 
• Plugin vulnerabilities 
• Firewall logs 

SEO Health: Because Google Has Opinions

A site that’s not indexed is a site that’s invisible. Post-launch, SEO metrics should be monitored closely. This is where web design and development meet the SEO rulebook. Don’t skip it. A few essentials: 

• Index coverage in Google Search Console 
• Keyword rankings 
• Backlink acquisition 
• Metadata & structured data health 
• Sitemap submission status  

Your web development agency doesn’t have to be an SEO firm, but it should set up basic SEO tools like: 

• Google Search Console  
• Bing Webmaster Tools 
• Yoast (if on WordPress) 

Accessibility Scores: Can Everyone Use It? 

A fancy UI doesn’t mean anything if it’s not accessible. 

Track: 

• WCAG compliance 
• Alt text presence 
• Keyboard navigation support 
• Color contrast ratios 

Use tools like Axe or Lighthouse for reports. Your web development agency should include accessibility checks as part of launch QA. Because inclusive design isn’t just ethical, it’s also strategic. 

Content Engagement: Are Users Sticking Around? 

After launch, your blog, resources, or product pages should start pulling some weight. 

Track: 

• Time on page 
• Scroll depth 
• Video plays or interactions 
• PDF downloads 

This gives a window into whether users are actually reading or just skimming and bouncing. Engagement metrics help content creators, marketers, and developers align post-launch strategy. 

Form Performance And Drop-Off Rates 

Every form on your site is a potential conversion point. So it’s worth asking: 

• Are users completing them?  
• Where are they dropping off? 
• Are any fields causing friction? 

A good web development agency will use form analytics tools to optimize: 

• Field order 
• Required inputs 
• Autofill compatibility 
• Mobile-friendliness 

Little tweaks can lead to a major lift. 

CMS Performance & Backend Functionality

If the site includes a content management system, performance doesn’t end with frontend speed. Teams providing website development services often forget to monitor CMS user experience, but for content-heavy teams, it’s vital.  

Track: 

• Admin panel load times 
• Media library issues 
• Plugin or module conflicts 
• Editor UX  

Core Metric Dashboards And Alerts 

All this data means nothing if it’s buried in a spreadsheet no one opens. That’s why setting up dashboards is critical. Your web development agency should deliver (or configure): 

• Google Looker Studio dashboards 
• GA4 reports 
• Monthly performance summaries 
• Slack or email alerts for uptime, speed drops, or security threats 

When all key stakeholders can see the data at a glance, decisions get faster, better, and more strategic. 

Real-World Feedback: Don’t Skip User Input

Finally, the numbers are great. But what are real users saying? Gather post-launch feedback through: 

• On-site surveys 
• Beta user feedback 
• Client stakeholder reviews 
• Accessibility testers 

Numbers guide you. But users validate you. And a web development agency that combines quantitative data with real voices? That’s how you create websites that work and wow. 

Start Tracking Like A Pro!  

Launching a website isn’t a “job done.” It’s “data starts now.” If your web development agency vanishes post-deployment without tracking these metrics, it’s missing the point. Every interaction, click, scroll, and bounce tells a story. 

And if you’re not reading that story, your competitors are. 

From website development services to web design and development, every digital deliverable needs post-launch care. Metrics aren’t the cherry on top. They’re the steering wheel, the GPS, and the warning lights. Track smart. Improve continuously. And treat every launch as the beginning, not the end.