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sfreefdivers.org: San Francisco Reef Divers

The San Francisco Reef Divers is a Community Non-Profit Sport Diving Club Dedicated to the Sport of Safe Scuba and Breath-hold diving and the Preservation of the Ocean Environment. Founded in 1970, Ou...

Page load speed analysis

  • 62/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    75 ms

  • Resources loaded

    173 ms

  • Page rendered

    330 ms

  • Total page load time

    578 ms

Visit sfreefdivers.org now to see the best up-to-date Sf Reef Divers content and also check out these interesting facts you probably never knew about sfreefdivers.org

We analyzed Sfreefdivers.org page load time and found that the first response time was 75 ms and then it took 503 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Page optimization

  • HTML 2.4 kB
    Images 212.6 kB
    Javascripts 0 B
    CSS 0 B

    In fact, the total size of Sfreefdivers.org main page is 215.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 212.6 kB which makes up the majority of the site volume.

    • Original 2.4 kB
    • After minification 2.4 kB
    • After compression 1.0 kB

    HTML optimization

    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 1.4 kB or 58% of the original size.

    • Original 212.6 kB
    • After optimization 182.3 kB

    Image optimization

    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. Obviously, Sf Reef Divers needs image optimization as it can save up to 30.3 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Network requests diagram

  • sfreefdivers.org
  • sfrd_splash.jpg

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Sfreefdivers.org and no external sources were called. The less responsive or slowest element that took the longest time to load (75 ms) belongs to the original domain Sfreefdivers.org.

Additional info on sfreefdivers.org

Requests

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sf Reef Divers. According to our analytics all requests are already optimized.

1

Images

1

All

Possible request optimization

1

Images

0

Optimized

1

All

Good result

IP address

This IP address is dedicated to Sfreefdivers.org. This is the best domain hosting practice .

Normal result

IP Trace

sfreefdivers.org

216.92.190.90

DNS records

Type Host Target/ip TTL Other
A

sfreefdivers.org

216.92.190.90 300
NS

sfreefdivers.org

ns000.ns0.com 300
NS

sfreefdivers.org

ns525.pair.com 300
SOA

sfreefdivers.org

300 Mname: ns525.pair.com
Rname: root.pair.com
Serial: 2020111315
Refresh: 3600
Retry: 300
Expire: 604800
Minimum-ttl: 3600
MX

sfreefdivers.org

mailwash56.pair.com 300 Pri: 50

Language and encoding

Poor result

Language

EN en language flag

Detected

N/A  language flag

Claimed

Encoding

N/A

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sfreefdivers.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Sfreefdivers.org main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

HTTPS certificate

SSL Certificate

Sfreefdivers.org has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

The server of Sfreefdivers.org is located in United States, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Sf Reef Divers. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

sfreefdivers.org

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