+ Lorem ipsum, dolor sit amet consectetur adipisicing
+ elit. Nesciunt recusandae animi esse
+ sunt enim iusto repellendus expedita sit provident delectus?
+
+
+
+
+ Link
+
diff --git a/src/rules/HeadingsStructureRule.js b/src/rules/HeadingsStructureRule.js
new file mode 100644
index 0000000..8eb5794
--- /dev/null
+++ b/src/rules/HeadingsStructureRule.js
@@ -0,0 +1,23 @@
+function headingsStructureRule(dom) {
+ return new Promise(resolve => {
+ const headings = dom.window.document.querySelectorAll(
+ 'h1, h2, h3, h4, h5, h6'
+ );
+ let previousLevel = 0;
+ headings.forEach(heading => {
+ const level = parseInt(heading.tagName.substring(1), 10);
+ if (level < previousLevel) {
+ resolve(
+ `Incorrect headings structure: ${heading.tagName} follows ${
+ previousLevel ? 'H' + previousLevel : 'no heading'
+ }.`
+ );
+ }
+ previousLevel = level;
+ });
+
+ resolve(null);
+ });
+}
+
+export default headingsStructureRule;
diff --git a/src/rules/MetaBaseRule.js b/src/rules/MetaBaseRule.js
index 36b4fca..9372441 100644
--- a/src/rules/MetaBaseRule.js
+++ b/src/rules/MetaBaseRule.js
@@ -1,6 +1,6 @@
import { META_BASE_RULE } from './config/defaults';
-function metaBaseRule(dom, options = { list: [] }) {
+function metaBaseRule(dom, options = { names: [] }) {
return new Promise(resolve => {
const report = [];
const list = options?.names || META_BASE_RULE.names;
diff --git a/src/rules/MetaDescriptionRule.js b/src/rules/MetaDescriptionRule.js
new file mode 100644
index 0000000..5f86752
--- /dev/null
+++ b/src/rules/MetaDescriptionRule.js
@@ -0,0 +1,28 @@
+import { META_DESCRIPTION_LENGTH_RULE } from './config/defaults';
+
+function metaDescriptionRule(dom, options) {
+ return new Promise(resolve => {
+ const description = dom.window.document.querySelector(
+ "meta[name='description']"
+ );
+ if (!description) {
+ resolve('Meta description tag is missing.');
+ }
+ const descriptionTags =
+ dom.window.document.querySelectorAll("meta[name='description']") || 0;
+ const descriptionLength = description.getAttribute('content').length || 0;
+ const min = options?.min || META_DESCRIPTION_LENGTH_RULE.min;
+ const max = options?.max || META_DESCRIPTION_LENGTH_RULE.max;
+ if (descriptionTags.length > 1) {
+ resolve('More than one meta description tag found.');
+ }
+ if (descriptionLength < min || descriptionLength > max) {
+ resolve(
+ `The meta description length(${descriptionLength}) should be between ${min} and ${max} characters.`
+ );
+ }
+ resolve(null);
+ });
+}
+
+export default metaDescriptionRule;
diff --git a/src/rules/config/defaults.js b/src/rules/config/defaults.js
index cdf0fa7..50f100e 100644
--- a/src/rules/config/defaults.js
+++ b/src/rules/config/defaults.js
@@ -24,3 +24,8 @@ export const TITLE_LENGTH_RULE = {
min: 30,
max: 60
};
+
+export const META_DESCRIPTION_LENGTH_RULE = {
+ min: 160,
+ max: 300
+};
diff --git a/src/rules/index.js b/src/rules/index.js
index 879561d..589ac73 100644
--- a/src/rules/index.js
+++ b/src/rules/index.js
@@ -1,17 +1,21 @@
import titleLengthRule from './TitleLengthRule';
+import metaDescriptionRule from './MetaDescriptionRule';
import imgTagWithAltAttributeRule from './ImgTagWithAltAttributeRule';
import aTagWithRelAttributeRule from './ATagWithRelAttributeRule';
import canonicalLinkRule from './CanonicalLinkRule';
import metaBaseRule from './MetaBaseRule';
import metaSocialRule from './MetaSocialRule';
+import headingsStructureRule from './HeadingsStructureRule';
const defaultRules = {
titleLengthRule,
+ metaDescriptionRule,
imgTagWithAltAttributeRule,
aTagWithRelAttributeRule,
canonicalLinkRule,
metaBaseRule,
- metaSocialRule
+ metaSocialRule,
+ headingsStructureRule
};
export default defaultRules;
-
-