Solved Edge (normal mode) vs In Private Mode. Why does this happen? Massive difference in page opening time.


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Mooly

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I've noticed a site I use taking ages to fully load (on two different PC's) and by pure chance opened the site using In Private mode and found it was instant. This behaviour is repeatable day in day out.

The site is this one:
riverlevels.uk

River Level Monitoring Stations by County

River Level Monitoring Stations in England, Scotland and Wales
riverlevels.uk

Click any location in any county and you see something like this. Notice the gauge at the left. This takes over twenty seconds to load using Edge normal mode. If I look it up using In Private the gauge opens instantly. Same for any monitored location on the site index:

Here is the link to this one:
riverlevels.uk

Haweswater Reservoir Monitoring Station: River level and flood alerts

River levels and flood alerts for the Haweswater Reservoir Monitoring Station, Cumbria
riverlevels.uk

Try it in Edge and then Edge In Private. Is there a difference for you?

Screenshot 2022-11-06 111316.jpg
 
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Either link opens instantly for me, whether in Private Mode or not, in any browser!
 

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Thanks for testing this Edwin. Having looked again and something suddenly jumped out that I just hadn't noticed... and that is the In Private mode doesn't seem to show the ad's for this site.

Do you see any adverts on yours?

Screenshot 2022-11-06 140346.jpg
 

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Mooly said:
...something suddenly jumped out that I just hadn't noticed... and that is the In Private mode doesn't seem to show the ad's for this site.

Do you see any adverts on yours?
Click to expand...

Hello, Mooly.

I only use InPrivate mode. To answer your question (although addressed to Edwin), I do not see ads when visiting the site.

Screenshot (215).png
 

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Thanks, that's interesting. If I scroll down the page to below all the relevant info I'm seeing whole blocks of ads, again these are missing on the In Private view.

Perhaps it's a UK thing as to whether the ads get targeted.
 

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W11 Pro x64 ongoing Canary 29500 latest builds
Computer type
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Manufacturer/Model
Dell 7760 Mobile Precision 17"
CPU
Intel i5
Motherboard
Unknown
Memory
8Gb
Graphics Card(s)
Intel HD Graphics
Sound Card
Realtek
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  • ASUS VivoBook 'Lite' ~ Windows 11 Home
I'm going to mark this resolved.

The slow page loading definitely seems related to the adverts on the page that appear when I open it using normal mode. Using 'In Private' mode for some reason does not appear to load these ads. That is the only difference I can see but it makes a massive difference to the loading times.

It also looks like those outside the UK do not get to see ads on this site in normal mode and so experience no delay.
 

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W11 Pro x64 ongoing Canary 29500 latest builds
Computer type
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Manufacturer/Model
Dell 7760 Mobile Precision 17"
CPU
Intel i5
Motherboard
Unknown
Memory
8Gb
Graphics Card(s)
Intel HD Graphics
Sound Card
Realtek
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Internal
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2 x 256Gb SSD
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Not sure if there is an option for it on Edge but I use uBlock-Origin on my Chrome,and I see no ads whatsoever [I also use Bitdefender Pro which may also sanitise some sites ]
 

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Thinking about your Ads and their not displaying when in private mode ... I think that these are geographically targeted ads, one function of Private Mode is to hide your location, it would appear that the website is setup to only display ads to UK visitors, it will not display to other locations, and, in a pleasant change from the norm, they treat No Location as one that does not have the Ads displayed
 

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  • At a glance

    Windows 11 Pro x64 [Latest Release Preview] [...AMD RYZEN 9 7950X OEM64GB [2x32GB Corsair Vengeance 560 AMD DDR5]3XS* ASUS DUAL RTX 4060 OC 8G
    OS
    Windows 11 Pro x64 [Latest Release Preview] [Win11 PRO HighEnd MUP-00005 DD]
    Computer type
    PC/Desktop
    Manufacturer/Model
    Scan 3XS to my design
    CPU
    AMD RYZEN 9 7950X OEM
    Motherboard
    *3XS*ASUS TUF B650 PLUS WIFI
    Memory
    64GB [2x32GB Corsair Vengeance 560 AMD DDR5]
    Graphics Card(s)
    3XS* ASUS DUAL RTX 4060 OC 8G
    Sound Card
    On motherboard Feeding SPDiF 5.1 system [plus local sound to each monitor]
    Monitor(s) Displays
    32" UHD 32 Bit HDR Monitor + 43" UHD 4K 32Bit HDR TV
    Screen Resolution
    2 x 3840 x 2160
    Hard Drives
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    3XS iCUE H150i ELITE Liquid Cool, Quiet Case fans
    Keyboard
    Wireless Logitec MX Keys + K830 [Depending on where I'm Sat]
    Mouse
    Wireless Logitec - MX Master 3S +
    Internet Speed
    950 MB Down 55 MB Up
    Browser
    Latest Chrome
    Antivirus
    BitDefender Total Security [Latest]
    Other Info
    Also run...
    Dell XPS 17 Laptop
    HP Laptop 8GB - Windows 10 Pro x64 HP 15.2"
    Nexus 7 Android tablet [x2]
    Samsung 10.2" tablet
    Blackview 10.2 Tablet
    Sony Z3 Android Smartphone
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    Wacom Pro Medium Pen Pad
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    Windows 11 Pro x64 [Latest release]i7 10750H32 GBStock Intel + GTX 1650 Ti
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    Laptop
    Manufacturer/Model
    Dell XPS 17 9700
    CPU
    i7 10750H
    Motherboard
    Stock
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    32 GB
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    Stock Intel + GTX 1650 Ti
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    Stock 4 speaker
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    Stock 17" + 32" 4K 3840 x 2160 HDR-10
    Screen Resolution
    3840 x 2400 HDR touchscreen
    Hard Drives
    2TB M2 NVMe
    PSU
    Stock
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    Cooling
    Stock + 2 fan cooling pad
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    Stock Illuminated + Logi - MX Keys
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    Internet Speed
    950 MB Down 55 MB Up
    Browser
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    BitDefender Total Security 2021
    Other Info
    Also use an Adjustable Support for Laptop and Adjustable stand for monitor
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