# כיצד לקבוע צוואר בקבוק ביצועים?

**URL:** <https://meta.discourse.org/t/how-to-determine-performance-bottleneck/233720>\
**Category:** Product Support\
**Created:** [23 ביולי,‏ 2022,‏ 5:37am UTC](https://meta.discourse.org/t/how-to-determine-performance-bottleneck/233720 "2022-07-23T05:37:46Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![g.slender](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/g.slender/32/267784_2.png) [@g.slender](https://meta.discourse.org/u/g.slender)\
**Post date:** [23 ביולי,‏ 2022,‏ 8:44pm UTC](https://meta.discourse.org/t/how-to-determine-performance-bottleneck/233720/10 "2022-07-23T20:44:10Z")

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I finally opened up Developer Tools and can see some error messages… looks like a) fonts are missing or not found and b) that its using IP instead of the correct FQDN - of which I’m unsure if IP is correct

```plaintext
The FetchEvent for "https://35.212.139.150/fonts/Roboto-Regular.ttf?v=0.0.9" resulted in a network error response: the promise was rejected.
Promise.then (async)
(anonymous) @ Router.mjs:60
The FetchEvent for "https://35.212.139.150/fonts/Roboto-Bold.ttf?v=0.0.9" resulted in a network error response: the promise was rejected.
Promise.then (async)
(anonymous) @ Router.mjs:60
NetworkFirst.mjs:167 Uncaught (in promise) no-response: no-response :: [{"url":"https://35.212.139.150/fonts/Roboto-Regular.ttf?v=0.0.9"}]
    at a.makeRequest (https://community.hubivue.com/javascripts/workbox/workbox-strategies.prod.js:1:2145)
makeRequest @ NetworkFirst.mjs:167
color_definitions_light_4_1_530ebcc4a553d42866a6f343d784841cf5c0b816.css:1 GET https://35.212.139.150/fonts/Roboto-Regular.ttf?v=0.0.9 net::ERR_FAILED
NetworkFirst.mjs:167 Uncaught (in promise) no-response: no-response :: [{"url":"https://35.212.139.150/fonts/Roboto-Bold.ttf?v=0.0.9"}]
    at a.makeRequest (https://community.hubivue.com/javascripts/workbox/workbox-strategies.prod.js:1:2145)
makeRequest @ NetworkFirst.mjs:167
color_definitions_light_4_1_530ebcc4a553d42866a6f343d784841cf5c0b816.css:1 GET https://35.212.139.150/fonts/Roboto-Bold.ttf?v=0.0.9 net::ERR_FAILED

```

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