Caching previously uncached content and increasing TTLs lowers your infrastructure expenses and greatly improves performance. In this session, you will learn how to leverage Fast Purge to cache often-changing content you avoided caching in the past, while always serving fresh content to your end users. With Fast Purge, you can now cache full product catalogs, news stories, and API feeds almost indefinitely. We will also unveil our soon-to-launch Content Tagging feature, which enables simple and powerful Fast-Purging of related content.

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Hold until Told
Tejinder Singh

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Agenda
• Terms of the trade
• The Nuclear option
• When to purge?
• Cache management
• Content Tags
• Caution
• Bonus feature!

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Hash some details
• Content Control Utility
• Enhanced Content Control Utility
• Fast Purge
• Invalidate vs Purge
• UI vs API (v2/v3)
<eccu>
<match:recursive-dirs value="images">
<match:recursive-dirs value="mens">
<match:recursive-dirs value="jackets">
<match:ext value="png">
<revalidate>now</revalidate>
</match:ext>
</match:recursive-dirs>
</match:recursive-dirs>
</match:recursive-dirs>
</eccu>
POST /ccu/v3/invalidate/url/production
Content-Type: application/json
{
"objects":[
"http://www.example.com/graphics/picture.gif",
"http://www.site-example.com/graphics/picture.gif",
"http://www.example1.com/documents/brochure.pdf"
]
}

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The Nuclear option

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The Nuclear option

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Content refresh scenarios

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Clearance sale Blue shoes
HTTP/1.1 200 OK
Edge-Content-Tag: Y2xlYXJhbmNlIHNhbGU=
HTTP/1.1 200 OK
Edge-Content-Tag: Ymx1ZSBzaG9lcw==

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Content Tags
• Logical grouping of content
• Effortless content management
• Surgical precision/Fine grained purge
• Avoid nuclear option

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Cache management
Remove 40,000 of 8 billion objects.
Then
•CCU
•ECCU
•Low TTLs
Now
•Fast Purge
•ECCU
•Tunable TTLs
Ahead
•Fast Purge
•Tags
•Flexible Cache strategy
response.writeHead(200, {
'Edge-Control: !no-store, !bypass-cache, max–age=300' });

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Be aware
• Duplicate URLs in submissions
• CPcode or expansive tag purge
• (Really) Fast Purge
• Plan tags before implementation
• Tag updates require TTL refresh

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Bonus!!!

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Summary
• CCU, ECCU, Fast Purge
• Invalidate, don’t purge
• Careful with large scale content removal
• Content management with tags
• CMS integration nuances

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Discussions n Questions?