Tools & Wizards About Us
sfspine.com screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

sfspine.com

Spine Surgeon San Francisco | Orthopedist | Spine Surgery Bay Area

Page Load Speed

34.6 sec in total

First Response

9.3 sec

Resources Loaded

25 sec

Page Rendered

204 ms

sfspine.com screenshot

About Website

Click here to check amazing Sf Spine content. Otherwise, check out these important facts you probably never knew about sfspine.com

Spine Surgery in San Francisco - San Francisco Spine Surgeons are Board Certified Spine Surgeons and Orthopedists serving the San Francisco Bay Area.

Visit sfspine.com

Key Findings

We analyzed Sfspine.com page load time and found that the first response time was 9.3 sec and then it took 25.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

sfspine.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value32.5 s

0/100

10%

TBT (Total Blocking Time)

Value610 ms

49/100

30%

CLS (Cumulative Layout Shift)

Value0.323

35/100

15%

TTI (Time to Interactive)

Value17.6 s

4/100

10%

Network Requests Diagram

www.sfspine.com

9344 ms

bootstrap.min.css

72 ms

style.min.css

107 ms

am-sticky-nav.css

133 ms

style.css

172 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 71% of them (39 requests) were addressed to the original Sfspine.com, 11% (6 requests) were made to Fonts.gstatic.com and 5% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (9.3 sec) belongs to the original domain Sfspine.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 229.2 kB (46%)

Content Size

502.7 kB

After Optimization

273.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sfspine.com main page is 502.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Images take 194.2 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 113.5 kB

  • Original 133.6 kB
  • After minification 127.4 kB
  • After compression 20.1 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 113.5 kB or 85% of the original size.

Image Optimization

-8%

Potential reduce by 15.3 kB

  • Original 194.2 kB
  • After minification 178.9 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Sf Spine images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 94.9 kB

  • Original 149.7 kB
  • After minification 149.7 kB
  • After compression 54.8 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 94.9 kB or 63% of the original size.

CSS Optimization

-22%

Potential reduce by 5.5 kB

  • Original 25.2 kB
  • After minification 25.2 kB
  • After compression 19.7 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Sfspine.com needs all CSS files to be minified and compressed as it can save up to 5.5 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (60%)

Requests Now

47

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sf Spine. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.sfspine.com

www.sfspine.com

9344 ms

bootstrap.min.css

bootstrap.min.css

72 ms

style.min.css

style.min.css

107 ms

am-sticky-nav.css

am-sticky-nav.css

133 ms

style.css

style.css

172 ms

addthis_wordpress_public.min.css

addthis_wordpress_public.min.css

206 ms

style.css

style.css

239 ms

modern.css

modern.css

274 ms

css

css

54 ms

css

css

83 ms

jquery.min.js

jquery.min.js

55 ms

jquery-migrate.min.js

jquery-migrate.min.js

303 ms

thmplt.js

thmplt.js

544 ms

am-sticky-nav.js

am-sticky-nav.js

578 ms

bootstrap.min.js

bootstrap.min.js

616 ms

actions.js

actions.js

651 ms

addthis_widget.js

addthis_widget.js

289 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

724 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

750 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

789 ms

mediaelement-migrate.min.js

mediaelement-migrate.min.js

821 ms

wp-mediaelement.min.js

wp-mediaelement.min.js

857 ms

vimeo.min.js

vimeo.min.js

875 ms

gtm.js

gtm.js

152 ms

analytics.js

analytics.js

77 ms

gtm.js

gtm.js

189 ms

header_bg.png

header_bg.png

265 ms

logo.png

logo.png

287 ms

yelp.jpg

yelp.jpg

325 ms

google-.jpg

google-.jpg

356 ms

tel_icon.png

tel_icon.png

385 ms

non-surgical.png

non-surgical.png

457 ms

surgical.png

surgical.png

498 ms

Phone_font_awesome.svg_-1.png

Phone_font_awesome.svg_-1.png

436 ms

divider_top.jpg

divider_top.jpg

429 ms

divider_small.jpg

divider_small.jpg

428 ms

mazor_spine_robot-291x300.jpg

mazor_spine_robot-291x300.jpg

474 ms

p-logo-st-mary-med-ctr.jpg

p-logo-st-mary-med-ctr.jpg

485 ms

logo-1.png

logo-1.png

463 ms

nav_divider.png

nav_divider.png

459 ms

line_circle.png

line_circle.png

461 ms

location_pic_34.jpg

location_pic_34.jpg

502 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVsEpbCIPrc.woff

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVsEpbCIPrc.woff

66 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCIPrc.woff

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCIPrc.woff

79 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVuEorCIPrc.woff

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVuEorCIPrc.woff

102 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVQ.woff

115 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVQ.woff

116 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVQ.woff

115 ms

collect

collect

41 ms

collect

collect

12 ms

js

js

101 ms

yelp_hover.jpg

yelp_hover.jpg

284 ms

google-_hover.jpg

google-_hover.jpg

295 ms

non-surgical_hover.png

non-surgical_hover.png

345 ms

surgical_hover.png

surgical_hover.png

316 ms

Accessibility Review

sfspine.com accessibility score

94

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

sfspine.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

sfspine.com SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sfspine.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sfspine.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

sfspine.com

Open Graph data is detected on the main page of Sf Spine. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: