We noticed a massive slowdown about a week ago on our site, with no changes in our actual code.

The issue we noticed was a huge delay on initial load when hitting our main page and product pages.

After chatting cloudflare support, they concluded after running an MTR there's a huge delay

* Trying 76.76.21.93:443...

* Connected to 76.76.21.93 (76.76.21.93) port 443 (#0)

* ALPN: offers h2,http/1.1

} [5 bytes data]

* TLSv1.3 (OUT), TLS handshake, Client hello (1):

} [512 bytes data]

* TLSv1.3 (IN), TLS handshake, Server hello (2):

{ [122 bytes data]

* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):

{ [15 bytes data]

* TLSv1.3 (IN), TLS handshake, Certificate (11):

{ [3987 bytes data]

* TLSv1.3 (IN), TLS handshake, CERT verify (15):

{ [264 bytes data]

* TLSv1.3 (IN), TLS handshake, Finished (20):

{ [36 bytes data]

* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):

} [1 bytes data]

* TLSv1.3 (OUT), TLS handshake, Finished (20):

} [36 bytes data]

* SSL connection using TLSv1.3 / TLS_AES_128_GCM_SHA256

* ALPN: server accepted h2

* Server certificate:

* subject: CN=no-sni.vercel-infra.com

* start date: Aug 21 07:28:02 2023 GMT

* expire date: Nov 19 07:28:01 2023 GMT

* issuer: C=US; O=Let's Encrypt; CN=R3

* SSL certificate verify result: unable to get local issuer certificate (20), continuing anyway.

} [5 bytes data]

* using HTTP/2

* h2h3 [:method: GET]

* h2h3 [:path: /sneaker-release-dates/jordan/air-jordan-12/jordan-12-cherry]

* h2h3 [:scheme: https]

* h2h3 [:authority: www.soleretriever.com]

* h2h3 [accept: */*]

* h2h3 [user-agent: cf-crossbow/938-27345f5]

* h2h3 [accept-encoding: gzip]

* Using Stream ID: 1 (easy handle 0x55662852f180)

} [5 bytes data]

> GET /sneaker-release-dates/jordan/air-jordan-12/jordan-12-cherry HTTP/2

> Host: www.soleretriever.com

> accept: */*

> user-agent: cf-crossbow/938-27345f5

> accept-encoding: gzip

>

{ [5 bytes data]

* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):

{ [122 bytes data]

< HTTP/2 200

< age: 0

< cache-control: private, no-cache, no-store, max-age=0, must-revalidate

< content-encoding: gzip

< content-security-policy: frame-ancestors 'self' https://www.soleretriever.com;

< content-type: text/html; charset=utf-8

< date: Wed, 25 Oct 2023 20:11:59 GMT

< server: Vercel

< strict-transport-security: max-age=63072000

< vary: RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Url

< x-content-type-options: nosniff

< x-dns-prefetch-control: on

< x-frame-options: SAMEORIGIN

< x-matched-path: /sneaker-release-dates/[brandSlug]/[modelSlug]/[productSlug]

< x-powered-by: Next.js

< x-vercel-cache: MISS

< x-vercel-execution-region: cle1

< x-vercel-id: sfo1::cle1::dgfb2-1698264719301-187c6ccebddd

< x-xss-protection: 1; mode=block

<

{ [5 bytes data]

* Connection #0 to host 76.76.21.93 left intact