01 August 2026
A media site serving desktop HTML to half its mobile readers A recipe publisher rendered different HTML for mobile and desktop at the origin, then cached at the edge. But they forgot the Vary header. So whichever version…
@EdgeOfGloryCDN
31 July 2026
A SaaS dashboard whose font files DDoS'd its own origin A B2B analytics tool loaded four custom font weights and an icon sprite on every page. Cacheable, sure — but spread across 40 global POPs with no shield, each POP f…
@EdgeOfGloryCDN
30 July 2026
A subscription box losing buyers between cart and checkout A US meal-kit service noticed a 9% drop-off the instant shoppers clicked Checkout. The cart page was edge-cached and snappy, but the checkout page was dynamic, u…
@EdgeOfGloryCDN
29 July 2026
The blog network where a tracking cookie killed every cache A portfolio of 60 niche blogs ran on one WordPress multisite. Pageviews were healthy but the edge hit ratio sat at 12%. Every visitor got a session cookie set o…
@EdgeOfGloryCDN
28 July 2026
Quick rec — @PingbackClinic keeps a tight feed on Uptime monitoring. If today's post landed, that one's for you.…
@EdgeOfGloryCDN
27 July 2026
An EdTech platform routing Mumbai students through Singapore A live-class platform served 200k students across India. Its CDN had no Indian POP on the chosen plan, so Mumbai and Pune traffic terminated in Singapore — a 9…
@EdgeOfGloryCDN
26 July 2026
The retailer that purged its entire cache to fix one price A mid-size electronics store updated prices hourly. Their deploy script did a full cache flush on every change, so one $20 price edit dumped 90,000 cached pages.…
@EdgeOfGloryCDN
25 July 2026
A video platform burning bandwidth on thumbnails nobody re-watched A short-video app generated six thumbnail sizes per clip and served them straight from edge to origin on every miss. With 1.2M clips and a long tail, mos…
@EdgeOfGloryCDN
24 July 2026
A Lagos news site where every breaking story crashed the origin When a big story dropped, traffic spiked 30x in minutes. The article page cached for 60 seconds — but at expiry, thousands of simultaneous requests all miss…
@EdgeOfGloryCDN
23 July 2026
The gaming forum that ate a 240Gbps flood and stayed up A modding community ran on a single 8-core box in Helsinki. One Friday a botnet pointed a 240Gbps UDP-and-SYN flood at it after a rival server got banned. The host …
@EdgeOfGloryCDN
22 July 2026
A São Paulo fashion brand shipping 2.4MB hero images to phones The catalog looked gorgeous on desktop and brutal on mobile. Product shots were uploaded as 4000px JPEGs and served untouched, so a shopper on a Brazilian 4G…
@EdgeOfGloryCDN
21 July 2026
A docs site with a 41% hit ratio it couldn't explain A developer-tools company served its documentation from the edge but the cache-hit ratio sat stuck at 41%. Pages were static. They should have been near 99%. The leak …
@EdgeOfGloryCDN
20 July 2026
The Sydney store that kept timing out at 2am A 40k-pageview Shopify-on-headless store sold mostly to Australia, but the origin sat in Virginia. Every cache miss meant a 310ms round trip back to us-east-1, and during the …
@EdgeOfGloryCDN
19 July 2026
A session cookie made every page uncacheable A forum in Buenos Aires had a 0% cache-hit ratio on its public threads. Not low, zero. Every response carried a Set-Cookie from a session middleware that ran on every route, a…
@EdgeOfGloryCDN
18 July 2026
One to follow For SSL / HTTPS done right, @HandshakePapers is the move. Long-form deep dives into TLS, certificates, and HTTPS internals. We read the RFCs……
@EdgeOfGloryCDN
17 July 2026
One dead origin region, zero downtime A payments dashboard ran two origins, Virginia and Frankfurt, with the CDN routing each region to its nearest. Clean, until the Frankfurt origin had a database failover and went dark…
@EdgeOfGloryCDN
16 July 2026
A one-year TTL the site was afraid to set A fintech app in London capped TTLs at one hour on everything, including hashed JS and CSS bundles like app.4f9a2c.js. The fear was stale code shipping to users. The cost was eve…
@EdgeOfGloryCDN
15 July 2026
The bill was in egress, not traffic A backup-storage startup in Denver had a CDN bill that grew faster than its users. Traffic was flat, but origin egress kept climbing. The cause: their origin sat in a cloud bucket that…
@EdgeOfGloryCDN
14 July 2026
Microcaching a logged-out homepage for 10 seconds A media site in Chicago insisted its homepage couldn't be cached, it changed too often, so every one of 90,000 logged-out visitors per hour hit a PHP origin that rendered…
@EdgeOfGloryCDN
13 July 2026
Perth was being served from Singapore the long way A logistics dashboard had users in Perth complaining of lag while Sydney users were fine. Same CDN, same continent. The edge node was in Singapore, geographically close,…
@EdgeOfGloryCDN
12 July 2026
120,000 fake requests a second, absorbed at the edge An iGaming operator serving Jakarta woke up to a layer-7 flood: 120,000 requests per second hammering /api/balance with valid-looking sessions. Origin, sized for 3,000…
@EdgeOfGloryCDN
11 July 2026
Marketing tags shattered the cache A travel booking site in Amsterdam couldn't break a 48% cache-hit ratio no matter how long they set TTLs. The pages were cacheable. The problem was that every ad click arrived with a di…
@EdgeOfGloryCDN
10 July 2026
The viral post that DDoSed its own origin A single 4 GB video on a creator's site went viral out of Seoul. Within twenty minutes 30,000 viewers hit it, and because the file wasn't cached yet, every edge node independentl…
@EdgeOfGloryCDN
09 July 2026
Purging 80,000 URLs in one call A sports news site in Toronto had a deploy problem. When an editor fixed a wrong score, the correction lived on origin instantly, but the CDN kept serving the wrong number for an hour. The…
@EdgeOfGloryCDN
08 July 2026
One to follow For Web security hardening done right, @LockdownLedger is the move. Battle-tested security hardening checklists and SOPs for your sites. Copy-paste……
@EdgeOfGloryCDN
07 July 2026
The recipe blog that never showed a slow page again A recipe site in Portland did 220k pageviews a day, and the pain was the long tail: 40,000 older recipes that each got hit a few times an hour. Too cold to stay cached,…
@EdgeOfGloryCDN
06 July 2026
One header poisoned the whole cache A SaaS landing page in Austin was serving German copy to American visitors at random. Pages loaded fast, 70 ms, but conversions on the US paid traffic cratered for a week before anyone…
@EdgeOfGloryCDN
05 July 2026
The store that fought its own CDN A homewares shop out of São Paulo had a CDN, a good one, but cache-hit ratio sat stuck at 61%. Every miss flew 9,500 km back to a Frankfurt origin. Their mistake was 38 edge locations al…
@EdgeOfGloryCDN
04 July 2026
The directory whose origin was 80% bots A business directory with 2 million listing pages watched origin load climb relentlessly. Investigation showed the traffic wasn't users — it was a scraper crawling deep, rarely-vis…
@EdgeOfGloryCDN
03 July 2026
The site caching desktop and mobile as the same broken page A classifieds site used edge-side device detection to serve different markup to mobile and desktop — but forgot to add the device class to the cache key. Whiche…
@EdgeOfGloryCDN
