Identify why your site is slow and how to optimize it for users and SEO
A slow website is one of the most costly problems for an online business. Each additional second of latency can reduce conversions by 7%, increase bounce rate by 11%, and decrease customer satisfaction. Google has also integrated loading speed into its ranking criteria via Core Web Vitals.
Website latency consists of several elements: server response time (TTFB), resource download time, browser parsing and rendering time. Identifying which component is slowest allows you to target optimizations effectively.
Latency monitoring is essential for maintaining good user experience. MoniTao monitors your endpoint response times and alerts you as soon as a threshold is exceeded, before your users suffer from slowness.
Website slowness has measurable consequences on all aspects of your business:
Website slowness can come from multiple sources that must be identified and addressed methodically:
A methodical diagnosis allows you to precisely identify bottlenecks:
Here are useful commands for quickly diagnosing latency issues:
# Measure TTFB with curl
curl -w "DNS: %{time_namelookup}s\nConnect: %{time_connect}s\nTTFB: %{time_starttransfer}s\nTotal: %{time_total}s\n" -o /dev/null -s https://example.com
# Check slow MySQL queries
mysql> SHOW FULL PROCESSLIST;
mysql> SELECT * FROM mysql.slow_log ORDER BY start_time DESC LIMIT 10;
# Check server resource usage
top -bn1 | head -20
free -h
iostat -x 1 3
# Test from different locations
for server in us-east eu-west asia; do
echo "$server: $(curl -w "%{time_total}" -o /dev/null -s https://example.com)"
doneThese commands help quickly identify if the problem comes from DNS, network, server, or database.
MoniTao offers several features for monitoring and alerting on latency issues:
A TTFB under 200ms is considered good. For LCP (Largest Contentful Paint), Google recommends less than 2.5 seconds. Ideally, your page should be interactive in under 3 seconds on mobile.
MoniTao measures TTFB (Time To First Byte), the server response time. For full load time including rendering, use RUM (Real User Monitoring) tools like Google Analytics or synthetic solutions like WebPageTest.
In your monitor settings, set a response time threshold (e.g., 500ms). An alert will be triggered if this threshold is exceeded during two consecutive checks to avoid false positives.
A CDN improves network latency by serving static files from servers close to the user. However, if the problem is high TTFB (slow backend), the CDN won't help. You need to optimize the backend.
This is usually related to traffic peaks that overload the server or database. Analyze correlations between slow times and your traffic. The solution may be scaling, caching, or query optimization.
Latency generally refers to network delay (propagation time). Response time includes network latency plus server processing time. In practice, these terms are often used interchangeably.
A slow site is costly: lost users, declining conversions, penalized SEO. The good news is that latency problems are diagnosable and fixable. The key is to precisely identify the bottleneck (server, database, frontend, network) before applying optimizations.
MoniTao allows you to continuously monitor your endpoint latency and receive alerts before your users suffer. Configure thresholds adapted to your performance goals and analyze trends to anticipate problems.
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