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esrtech.com website review
Visit site (opens in a new tab)Reviewed 4 November 202616 issues · 78 checks
This review found 16 issues worth fixing on esrtech.com, 5 of them high impact, across 78 checks. The most urgent: page weight: 8.8 MB. Google's speed test didn't respond, so speed is not measured here; your full playbook measures it. Your full playbook turns these into prioritised fixes alongside reviews, competitors and channels.
- Homepage
- Phone render
- Links and pages
- Google PageSpeed
Google PageSpeed Insights (opens in a new tab), mobile
Site score
Not scored yet: Google's speed test didn't run in this review. Re-run the review to get a score.
Show as table
| Date | Real-visitor load time (LCP) |
|---|---|
| May 16, 2026 | 2.9 s |
| May 23, 2026 | 2.9 s |
| May 30, 2026 | 2.8 s |
| Jun 6, 2026 | 2.7 s |
| Jun 13, 2026 | 2.8 s |
| Jun 20, 2026 | 2.7 s |
| Jun 27, 2026 | 2.7 s |
| Jul 4, 2026 | 2.7 s |
| Jul 11, 2026 | 2.7 s |
| Jul 18, 2026 | 2.6 s |
| Jul 25, 2026 | 2.6 s |
| Aug 1, 2026 | 2.6 s |
| Aug 8, 2026 | 2.6 s |
| Aug 15, 2026 | 2.6 s |
| Aug 22, 2026 | 2.6 s |
| Aug 29, 2026 | 2.6 s |
| Sep 5, 2026 | 2.6 s |
| Sep 12, 2026 | 2.6 s |
| Sep 19, 2026 | 2.6 s |
| Sep 26, 2026 | 2.5 s |
| Oct 3, 2026 | 2.5 s |
| Oct 10, 2026 | 2.4 s |
| Oct 17, 2026 | 2.5 s |
| Oct 24, 2026 | 2.5 s |
| Oct 31, 2026 | 2.4 s |
Show as table
| Date | Real-visitor tap response (INP) |
|---|---|
| May 16, 2026 | 158 ms |
| May 23, 2026 | 162 ms |
| May 30, 2026 | 162 ms |
| Jun 6, 2026 | 164 ms |
| Jun 13, 2026 | 169 ms |
| Jun 20, 2026 | 171 ms |
| Jun 27, 2026 | 171 ms |
| Jul 4, 2026 | 170 ms |
| Jul 11, 2026 | 171 ms |
| Jul 18, 2026 | 167 ms |
| Jul 25, 2026 | 162 ms |
| Aug 1, 2026 | 163 ms |
| Aug 8, 2026 | 162 ms |
| Aug 15, 2026 | 165 ms |
| Aug 22, 2026 | 170 ms |
| Aug 29, 2026 | 172 ms |
| Sep 5, 2026 | 173 ms |
| Sep 12, 2026 | 177 ms |
| Sep 19, 2026 | 183 ms |
| Sep 26, 2026 | 187 ms |
| Oct 3, 2026 | 189 ms |
| Oct 10, 2026 | 191 ms |
| Oct 17, 2026 | 188 ms |
| Oct 24, 2026 | 187 ms |
| Oct 31, 2026 | 181 ms |
Chrome UX Report (opens in a new tab): real Chrome visitors over rolling 28-day periods.
One score from every part of this review. How it works
Speed
Not measured in this review.
Core Web Vitals
Real-user FCP: 1.9 s
1.9 sReal visitors see the first content after 1.9 s (75th percentile). Good is under 1.8 s.
Real-user TTFB: 1.2 s
1.2 sReal visitors wait 1.2 s for your server to start answering (75th percentile). Good is under 800 ms.
Tap response (INP) got 15% slower for real visitors
+15%Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 158 ms to 181 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).
5 checks passed
Passes Core Web Vitals for real visitors
Real Chrome users on phones pass Google's Core Web Vitals on your site (28-day field data from the Chrome UX Report (opens in a new tab)).
Real-user LCP: 2.4 s
2.4 sReal visitors wait 2.4 s for the largest content to appear (75th percentile). Good is under 2.5 s.
Real-user INP: 179 ms
179 msReal visitors wait 179 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.
Real-user CLS: 0.05
0.05For real visitors the layout shifts by 0.05 (75th percentile). Good is under 0.1.
Largest content (LCP) got 15% faster for real visitors
-15%Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 2.9 s to 2.4 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).
Images and page weight
Page weight: 8.8 MB
8.8 MBYour homepage downloads 8.8 MB on a phone, 7.1 MB of it images (81%). Under 2 MB keeps phones on slow connections fast.
About 2.5 g of CO₂ per visit
2.48 gBy the Sustainable Web Design model, a visit to your homepage emits about 2.48 g of CO₂e: 298.0 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.
3 checks passed
Images use modern formats
Every sizeable image is WebP, AVIF or SVG.
Images load when needed
Images below the first screen wait until the visitor scrolls to them.
Images are sized for phones
No image is downloaded at more than three times the size it is drawn on a phone.
Accessibility
1 button without a name
1 button has no accessible name, so screen readers announce just “button”.
79 text elements with low contrast
79 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.
1 tap target too small
1 tap target is too small or too close together to hit reliably with a finger.
2 images without alt text
2 images have no alt text, which hurts accessibility and image search.
All page content should be contained by landmarks (21 elements)
All page content should be contained by landmarks: 21 elements on the page fail this check, rated moderate by axe-core.
2 form fields without a label
2 form fields have no label, so screen readers announce an empty box and autofill guesses.
Headings skip levels
Headings skip levels (h2 → h4 and h2 → h4), which makes the page harder to scan with a screen reader.
1 checks passed
42 automated accessibility rules passed
axe-core 4.13.0, the open-source engine behind most accessibility testing tools, ran 47 WCAG 2.2 A/AA and best-practice rules on the phone render: 42 passed and 5 failed. 2 mores need a person to judge. Automated rules catch about a third of accessibility problems; the rest need manual testing.
SEO
Meta description is long (176 characters)
Your meta description is 176 characters; Google truncates after about 160, so the end of your pitch is cut.
888 internal links, 62 external
The homepage links to 888 pages on esrtech.com and 62 external pages.
7 checks passed
One H1 headline
Your main headline reads: “ESR Phone Cases, iPad Accessories, Screen Protectors, MagSafe Accessories & Chargers”.
Title: 60 characters
Your title is a healthy 60 characters: “ESR TECH Made Easier | Premium Charging Accessories And More”.
Canonical URL set
The canonical URL is https://www.esrtech.com/.
Structured data in place
Structured data found: Organization and WebSite.
Open Graph tags complete
Open Graph tags are complete, so shared links show a title, description and image.
robots.txt in place
robots.txt is in place and points crawlers to your sitemap.
XML sitemap found
Your XML sitemap is reachable at https://www.esrtech.com/sitemap.xml.
AI search readiness
Organization data is thin (3 of 6 facts)
Your Organization JSON-LD is missing logo, description and contact details. These are the facts AI assistants use to describe a business and to tell it apart from others with a similar name.
No llms.txt
There is no /llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.
2 checks passed
AI answer engines may read the site
Your robots.txt lets the crawlers behind ChatGPT search, Claude and Perplexity read the site and cite it in answers.
Text is in the HTML
Your server sends the page's text in the HTML (4,595 words), so crawlers that don't run JavaScript still read it.
Other pages
7 pages without an H1
/collections/ipad-mini-8-cases, /pages/apple-event-iphone-accessories, /pages/be-esrtech-superuser, /pages/specialsalezone, /pages/referral and /collections/protective-cases and 1 other have no <h1> headline, so visitors and search engines get no clear main topic.
3 pages slow to respond
/pages/apple-event-iphone-accessories, /pages/be-esrtech-superuser and /pages/specialsalezone took over 3 s to send their HTML from our server.
15 internal pages checked
We fetched 15 pages linked from your homepage (of 196 found) and read each the way a search engine does.
6 checks passed
Linked pages load
7 pages of 15 loaded without an error (the rest turned automated requests away).
Canonical URLs point to themselves
No page we checked hands its ranking to a different URL.
Every page has a meta description
All 7 pages that loaded have a meta description.
Titles are unique
Every page we checked has its own title.
No linked page is hidden from search
None of the pages we checked carries a noindex tag.
Every page has a title
All 7 pages that loaded have a <title>.
Best practices
3 JavaScript errors while loading
3 errors were logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.
2 checks passed
Tap targets are thumb-sized
45 of 51 tappable elements near the top are at least 24 px.
Mobile viewport set
The page declares a mobile viewport.
Security and trust
Short HSTS lifetime
HSTS is set, but max-age is 91 days; one year is the recommended minimum.
No Referrer-Policy
No Referrer-Policy header, so full URLs can leak to the sites you link to.
No Permissions-Policy
No Permissions-Policy header to switch off camera, microphone and location for embedded content.
Deprecated X-XSS-Protection
X-XSS-Protection is set to “1; mode=block”; the header is deprecated and can introduce bugs. Use 0 or remove it.
No security.txt
There is no /.well-known/security.txt telling researchers how to report a security problem to you.
7 checks passed
Served over HTTPS
The homepage is served over HTTPS (esrtech.com).
Valid certificate (76 days left)
The certificate from Let's Encrypt · YE1 verifies for esrtech.com and is valid for another 76 days.
Protected from clickjacking
X-Frame-Options or a frame-ancestors policy stops other sites framing yours.
Content-Security-Policy set
A Content-Security-Policy is set, the main browser-side defence against injected scripts.
http:// redirects to https
http://esrtech.com redirects to the secure version.
HTTP/2 and HTTP/3
The server speaks HTTP/2 and advertises HTTP/3, so browsers load many files over one connection.
All 45 links work
All 45 links checked from your homepage (40 internal, 5 external) answered without errors; 4 did not answer within 5 s.
Domain and trust
DNSSEC is off
esrtech.com's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.
3 checks passed
Domain is 12 years old
12 yearsesrtech.com was registered in Jul 2014 through Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn). An established domain carries more trust with email providers and search engines.
Certificate issuers are restricted
CAA records allow only pki.goog, ssl.com, digicert.com and globalsign.com to issue certificates for esrtech.com, so a mis-issued certificate from anyone else is refused.
Registered until Jul 2027
esrtech.com is registered until Jul 2027.
Content and conversion
Thin social proof
Social proof on the homepage: 2 trust badges. Pairing it with named testimonials or customer logos makes it far more convincing.
No direct contact details
No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.
No risk reducer
No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.
About 1,960 words of copy
The homepage carries about 1,960 words of visible text.
4 checks passed
Clear next step on the first screen
On a phone, the first screen shows a clear next step: “Shop now”.
155 calls to action
The homepage has 155 calls to action, for example “Join Now”, “Contact Us” and “Order Status”.
1 short form
A short form (1 field at most) is right on the homepage.
Analytics in place
Analytics detected: Google Tag Manager, Microsoft Clarity and Mixpanel.
Email authentication
Email authentication score: 90/100
Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.
3 checks passed
DMARC policy: quarantine
DMARC tells receivers to quarantine mail that fails authentication, and sends you reports.
SPF with a strict ending (-all)
An SPF record lists your sending servers and tells receivers to reject anything else: “v=spf1 include:spf.qiye.aliyun.com -all”.
DKIM signing found
A DKIM key is published (selector “default”), so receivers can verify mail really came from you.
Privacy and tracking
4 trackers load before any consent
4Before a visitor clicks anything, the page loads Google Tag Manager, Klaviyo, Meta Pixel and Microsoft Clarity (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.
6 cookies set on arrival
6Opening the homepage sets 6 cookies (measured from a US location before any click).
No consent tool detected
No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.
22 other companies contacted
Loading the homepage contacts 22 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.
Apps on your store
Your storefront loads 11 apps. Each one is code from another company running for your shoppers.
None of the apps your storefront loads is on the list of apps with a known security problem.
Apps your storefront loads
Klaviyo Email Marketing Sms · Checkout App · Simprosys Google Shopping Feed · Multifeeds · Judge Me Reviews · Vidhash Shoppable Video Cdp · Seowill Ai Seo · Nova Multi Currency Converter · cloudfront.net · tagembed.com · quickcep.com
Apps found in the homepage's code. Apps that only run in checkout or the admin aren't seen, and a headless storefront shows none. App data from programmable.info
Upkeep, stack and company
Stack
- E-commerce
- Shopify
- Analytics
- Google Tag Manager | Mixpanel | Microsoft Clarity
- Hosting
- Shopify
Company
- Employees
- 750
- Headquarters
- Shenzhen
Upkeep, stack, hiring and company data from programmable.info
Go beyond the website
What your $25 Growth Playbook adds
This review found 16 issues on esrtech.com, including 2 speed issues, 1 SEO issue and 2 conversion gaps. That is the website alone. The full Growth Playbook pairs these findings with what your customers say in public reviews and communities and what your closest competitors do better, then turns everything into at least 20 prioritised ideas, each with the evidence behind it, a step-by-step playbook, a metric and an owner.
- 28 research agents read your site, reviews, competitors, communities and public filings
- Customer review mining (G2, Capterra, Trustpilot and more) and voice-of-pain analysis in your buyers’ own words
- Competitor intelligence with battlecards for your closest rivals
- Ideal customer profile, buyer segments and buying-stage funnel
- Ranked channels, outreach sequences and content angles
- Live Reddit threads where buyers ask for what you sell, with draft replies
- Earned media and PR openings
- At least 20 ideas with evidence, a step-by-step playbook, metric, owner, effort and impact, grouped into this week, this quarter, big bets and wildcards, plus a 30/60/90-day roadmap
- PDF, Markdown, CSV, Notion and Linear exports, and a shareable page your team can track progress on
- Refresh the playbook later to see what changed
14-day money-back guarantee: not happy for any reason, email us within 14 days and we refund in full.