- Google is focusing on mobile page speed and user experience as part of its search rankings. A study was conducted analyzing the page speed and optimization of over 1 million pages. - The results showed that optimization score, which measures how well a page leverages browser caching and prioritizes visible content, had a strong correlation with search rankings. However, page speed metrics like first content paint and load time did not correlate as much. - This indicates that for mobile search rankings, page optimization is more important than raw speed numbers. Site owners should focus on optimizing aspects like response time, redirects, compression, caching, and prioritizing visible content to improve rankings.

1. Aleh Barysevich
@ab80
Link-Assistant.com
Winning with
Mobile Page Speed

2. @ab80
Winning with Mobile Page Speed
Aleh Barysevich
SEO Expert, Author, Speaker, 15 years of experience.
Founder:
As seen on:

3. @ab80
What You Will Learn Today
Approaches to measure mobile page speed
What all SEOs are missing on
The results of our mobile page speed experiment

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Google Is Obsessed With Speed

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Performance Matters
15.3
Average mobile page takes
seconds to load

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Performance Matters
of visits are abandoned if the page
doesn’t load within
53%
3 seconds

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Performance Matters
of people want a page to load
in less than
50%
2 seconds
More than

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Performance Model
Performance model
DOM Content Loaded Painting
Speed Index Conversion
First Meaningful Paint
Memory
Smoothness
Visits
Critical Path
Compositing
First Paint
First Contentful Paint
JavaScript
Layout
Network
Time to Interactive
Engagement

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RAIL Performance Model
RAIL
performance model
Response Animation
Idle Load

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RAIL Performance Model
esponse — must be completed within 100 msR
A
I
L

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RAIL Performance Model
nimation — must be visually smooth (60 fps)
R
A
I
L

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R
A
I
L
RAIL Performance Model
dle — maximize idle time

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R
A
I
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RAIL Performance Model
oad — first meaningful paint < 1 second
time-to-interactive < 5 seconds or less

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RAIL Performance Model
R
A
I
Load — first meaningful paint < 1 second
time-to-interactive < 5 seconds or less
dle — maximize idle time
nimation — must be visually smooth (60 fps)
esponse — must be completed within 100 ms

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Loading Performance
Loading Time
Optimization

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Loading Performance
?
1. What metrics to measure?
2. How to measure them?

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Loading Performance
When everything is important.
Speed Index
First Paint
First Meaningful Paint
Time To Interactive
body.onload
DOM Content Loaded
Nothing is.

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PageSpeed Insights

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PageSpeed Insights

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PageSpeed Insights: Speed and Optimization

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FCP & DCL
First Contentful Paint
first visual response from the page
DOM Content Loaded
document has been loaded and parsed

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FCP & DCL
First Paint
First Contentful Paint (FCP)
First Meaningful Paint (FMP)
DOM Content Loaded (DCL)
Time to Interactive (TTI)

23. @ab80
Real User Monitoring
0.4s DCL
0.3s DCL
0.8s DCL
2.4s DCL
1.4s DCL
4.5s DCL
2.8s DCL
1.1s DCL

24. @ab80
Real User Monitoring
9.28 s | DOMContentLoaded: 1.13 s | Load:
2.6s > 1.13s

25. @ab80
Real User Monitoring
Lab Data Field Data
Real User Monitoring
Good for debugging
Deep visibility into the UX
Reproducible environment
No real-world bottlenecks
Can’t correlate against real-world KPIs
True real-world user experience
Correlation to business KPIs
Restricted set of metrics
Limited debugging capabilities

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Chrome User Experience Report
CrUX
0.4s DCL
0.3s DCL
0.8s DCL
2.4s DCL
1.4s DCL
4.5s DCL
2.8s DCL
1.1s DCL

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CrUX + Google BigQuery Platform
CrUXReal Users

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CrUX + Google BigQuery Platform

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CrUX + Google BigQuery Platform

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CrUX + Google BigQuery Platform

31. @ab80
CrUX + Google BigQuery Platform

32. @ab80
The Experiment
How Page Speed Affects
Google Rankings

33. @ab80
Mobile Page Speed Update
Live: July 9, 2018
Page Speed Update
for Mobile Search
Announced: January 17, 2018

34. @ab80
Mobile Page Speed Experiment
positions for
33,000
Top 30
keywords
1,000,000
analyzed pages
Optimization Score
First Contentful Paint (FCP)
DOM Content Loaded (DCP)

35. @ab80
b/w Average Optimization Score
and Position
0.97Correlation
Mobile Page Speed Experiment – May, 2018

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Mobile Page Speed Experiment – May, 2018
b/w Median FCP/DCL and Position
Nocorrelation
as of May, 2018

37. @ab80
Mobile Page Speed Update
Live: July 9, 2018
Page Speed Update
for Mobile Search
Announced: January 17, 2018

38. @ab80
Mobile Page Speed Experiment – July, 2018
Sep
Mobile Page Speed Update
Experiment: July
Aug
Jul
Jun
May
Experiment: May

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Mobile Page Speed Experiment – July, 2018
73.9
72.6
Sep
Mobile Page Speed Update
Experiment: July
Aug
Jul
Jun
May
Experiment: May

40. @ab80
Mobile Page Speed Experiment – July, 2018
What about
Page Speed correlation?

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Mobile Page Speed Experiment – July, 2018
Sep
Mobile Page Speed Update
Experiment: July
Aug
Jul
Jun
May
Experiment: May

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Mobile Page Speed Experiment – August, 2018
Sep
Mobile Page Speed Update
Experiment:
August
Aug
Jul
Jun
May
Experiment: May
Experiment: July

43. @ab80
Mobile Page Speed Experiment – August, 2018
Sep
Mobile Page Speed Update
Experiment:
August
Aug
Jul
Jun
May
Experiment: May
Experiment: July

44. @ab80
Mobile Page Speed Experiment Results
Optimization
is more important
than Page Speed
for Google rankings

45. @ab80
“The ‘Speed Update,’ as we’re calling it,
will only affect pages that deliver the
slowest experience to users”
Wednesday, January 17, 2018

46. @ab80
How Optimization Score Affected Rankings After the Mobile Page Speed Update
Pages with
Low Optimization Score
Pages with
High Optimization Score

47. @ab80
How Optimization Score Affected Rankings After the Mobile Page Speed Update
Pages with
Fast Page Speed
Pages with
Slow Page Speed

48. @ab80
Mobile Page Speed Experiment Results
Optimization
is more important
than Page Speed
for Google rankings

49. @ab80
How to Improve Optimization Score
Improve server response time
Avoid landing page redirects
Enable compression
Leverage browser caching
Minify resources
Optimize images
Optimize CSS Delivery
Remove render-blocking JavaScript
Prioritize visible content

50. @ab80
How to improve Optimization Score
PageSpeed Insights Rules
https://developers.google.com/speed/docs/insights/rules
Improve server response time
Avoid landing page redirects
Enable compression
Leverage browser caching
Minify resources
Optimize images
Optimize CSS Delivery
Remove render-blocking JavaScript
Prioritize visible content

51. @ab80
Mobile Page Speed Experiment
Mobile Page Speed
Experiment Data
https://seopwr.st/2QtFKWY
Professional software for full-cycle SEO campaigns
by:

52. @ab80
Thank You!
Aleh
Barysevich
@ab80
www.link-assistant.com
aleh@link-assistant.com